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ANSI/CEMA 300-2009 A Revision of ANSI/CEMA 300-2003
Approved: April 1, 2009
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Screw Conveyor Dimensional Standards
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Conveyor Equipment Manufacturers Association
Fourth Edition
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CEMA Standard #300
ISBN # 978-1891171-39-0
CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards DISCLAIMER The information provided herein in advisory only.
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These recommendations provided by CEMA are general in nature and are not intended as a substitute for professional advice. Users should seek the advice, supervision and/or consultation of qualified engineers, safety consultants, and other qualified professionals.
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Any use of this publication, or any information contained herein, or any other CEMA publication is made with agreement and understanding that the user and the user’s company assume full responsibility for the designs, safety, specifications, suitability and adequacy of any conveyor system, system component, mechanical or electrical device designed or manufactured using this information.
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The user and user’s company understand and agree that CEMA, its member companies, its officers, agents and employees are not and shall not be liable in any manner under any theory of liability to anyone for reliance on or use of these recommendations. The user and the user’s companies agree to release, hold harmless and indemnify and defend CEMA, its member companies, successors, assigns, officers, agents and employees from any and all claims of liability, costs, fees (including attorney’s fees), or damages arising in any way out of the use of this information.
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CEMA and its member companies, successors, assigns, officers, agents and employees make no representations or warranties whatsoever, either expressed or implied, about the information contained herein, including, but not limited to, representations or warranties that the information and recommendations contained herein conform to any federal, state or local laws, regulations, guidelines or ordinances.
Conveyor Equipment Manufacturers Association 5672 Strand Ct, Suite 2 Naples, Florida 34110-3314 www.cemanet.org Copyright © 2019
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CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards FOREWORD This publication, CEMA Standard No. 300 “Screw Conveyor Dimensional Standards”, provides recommended dimensional sub-standards for major screw conveyor components. All dimensions and tolerances are based on Carbon Steel Fabrication.
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These recommended sub-standards are issued in conjunction with CEMA Standard No. 350 “Screw Conveyors”. “Screw Conveyors” is a comprehensive manual of engineering and application practice for screw conveyors.
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Both publications are also American National Standards.
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CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards SUMMARY OF CHANGES
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In 1999 Edition, all drawings were redrawn to provide greater clarity and ease of interpretation; the need for Safety Labeling has been emphasized in the “Safety Notice”; trough tolerances were changed from ± 1/32” to ± 1/16”; hex head bolts replaced countersunk bolts in substandards 300-013 and 300-014. In sub-standard 300-033, note has been modified to allow the manufacturer the option of having the flush end discharge the same dimension as U-Trough End Plates.
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The 2003 Edition had no changes made to it, however, the 2009 Edition was revised by adding a 34th Standard called “Shaftless Conveyor Screws”.
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The 2015 Edition, the Screw Conveyor Section revised and modified sub-standards 300-001 (18-inch dimensions were added to the table), 300-020 (CEMA 216 hanger bearings dimensions and tolerances were added), 300-021 (CEMA 226 hanger bearings dimensions and tolerances were added, 300-022 (some data was modified)
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In 2019 Edition, it was reviewed and modified sub-standards: 300-001 (Dimension B should read “Nominal Thickness” after determining that everyone’s machine will vary in the thickness based on the quality of the machine), 300-019 was separate in two sub-standards, 300-019A 2Bolts Coupling Shafts and 300-019B 3-Bolts Coupling Shafts and dimensions for 3 15/16”, 4 7/16” and 4 15/16” were added; a balance of dimension on the 300-013 and 300-014 were added and review of the “J and “K” dimension in 300-013. Some sub-standards were reviewed to add the dimensions for 30 an 36” including the hangers.
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CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards SAFETY NOTICE The Conveyor Equipment Manufacturers Association has developed Industry Standard Safety Labels for use on the conveying equipment of its member companies.
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The labels are available for sale to member companies and non-member companies.
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The purpose of the labels is to identify common and uncommon hazards, conditions, and unsafe practices which can injure, or cause the death of, the unwary or inattentive person who is working at or around conveying equipment.
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A full description of the labels, their purpose, and guidelines on where to place the labels on typical equipment, has been published in CEMA’s Safety Label Brochure, CEMA Brochure No. 201. The Brochure is available for purchase by members and non-members of the Association. Safety Labels and Safety Label Placement Guidelines, originally published in the b rochure, are also available free on the CEMA Web Site at www.cemanet.org/safetylabels-2/
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PLEASE NOTE: Should any of the safety labels supplied by the equipment manufacturer become unreadable for any reason, the equipment USER is then responsible for replacement and location of these safety labels.
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Replacement labels and placement guidelines can be obtained by contacting your equipment supplier or CEMA.
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CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards TABLE OF CONTENTS Sub-Standard
Description Helicoid Conveyor Screws
300-002
Sectional Flight Conveyor Screws
300-003
Cut-and-Folded Flight Conveyor Screw
300-004
Cut Flight Conveyor Screw
300-005
Conveyor Screws with Paddles
300-006
Ribbon Flight Conveyor Screws
300-007
Paddle Conveyor Screws
300-008
Paddles
300-009
Angle U-Trough
300-010
Flared Trough
300-011
Conveyor Discharge Spouts, Plain
300-012
Hand Slides for Conveyor Discharge Spouts
300-013
U-Trough End Plates
300-014
Flared Trough End Plates
300-015
U-Trough Flange Bolt Hole Patterns
300-016
Flared Trough Flange Bolt Hole Patterns
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300-001
300-017
Drive Shafts
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300-019A
End Shafts
C
300-018
Type 216 Hangers
300-021
Type 226 Hangers
300-022
Coupling Bolts with Nuts
300-023
U-Trough Flanged Covers
300-024
U-Trough Semi-Flanged Covers
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300-020
3-Bolts Coupling Shafts
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300-019B
2-Bolts Coupling Shafts
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CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards Sub-Standard
Description U-Trough Flat Covers
300-026
Double Flanged U-Troughs
300-027
Type 270 Ball Bearing Hangers
300-028
Type 326 Hangers
300-029
Type 316 Hangers
300-030
Packing Seal Housing
300-031
Shrouds
300-032
Conveyor Inlet Spout Flanged
300-033
Conveyor Discharge Spouts
300-034
Shaftless Conveyor Screws
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300-025
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-001
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Helicoid Conveyor Screws
A
2
2 7/16
3
18
3
1/16
142
3
141
3 1/2 3 3 1/2
141
3/16 1/4 5/16
1/8
5/16 3/8 5/16 3/8
141
1/8
3 1/2
141
1/8
3/8
3 1/2
141
3/16
3/8
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3/16
N LY 1/8 1/4 3/8 3/16 3/8 3/16 3/8 7/16 1/4 3/8 1/4 3/8 7/16 1/4 7/16 5/16 7/16 5/16
A EM C
1
C
D F G H Bushing Bore Inside Spacing 1st Centers 2nd Nominal Bolt Diameter Bolt Hole Bolt Hole Hole Size (in) (in) (in) (in) Minus Min. Max.
Pitch Tolerance (in)
Nominal Plus Outer Edge 1/16 1/2 1/8 3/4 3/16 3/4 3/32 3/16 3/4 3/32 3/16 7/32 1/8 3/16 1 1/8 3/16 7/32 1/8 1 7/32 5/32 1 1/2 7/32 5/32 1 1/2
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2 1/2 2 1/2
3/16
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C
3 2 7/16 3
1/16
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118
Thickness (in)
Minus Inner Edge
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2
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1 1/2
6H304 6H308 6H312 9H306 9H312 9H406 9H412 9H414 12H408 12H412 12H508 12H512 12H614 14H508 14H614 16H610 16H416 18H610
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1 1/2
Plus
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6
B
Diameter Tolerance (in)
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Listed Pipe Screw Coupling Size Size Length Diameter Diameter Designation SCH 40 (in) and Pitch (in) (in) (in)
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1/4 1.505 1.516
7/8
3
1.516
17/32 7/8
1/4 1.505
17/32
3
2.016
21/32
2.005 2.016
7/8
2.443 2.458
15/16
3.005 3.025 2.443 2.458 1/4 3.005 3.025
1 15/16 1
1/4 3.005 3.025
1
3
25/32
1/4 3.005 3.025
1
3
25/32
1/4
3
3
21/32 25/32 21/32 25/32
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-001
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-002
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Sectional Flight Conveyor Screws
3 2 7/16 14
16
3
3
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3 7/16 3
C
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24
141
5/16
3 1/2
141
3 7/16
3 7/16
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1/8
3
141
1/8
3 1/2
141
1/8
3 1/2
141
3 1/2
3/16
4
140
3 1/2
141
4
140
4
140
3/16
3/16
5/16 3/8 5/16 5/16 3/8 3/8 3/8 3/8 1/2 3/8 3/8 1/2 3/8 3/8 1/2 3/8 3/8 3/8 3/8 1/2 3/8 3/8 1/2
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Pitch Tolerance (in)
3/8
1/4 1.505 1.516
1/2
1/4
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3
10 GA 3/16 3/16 3/16 1/4 3/16 3/16 1/4 1/4 3/8 3/16 1/4 3/8 3/16 1/4 3/8 1/2 1/4 3/8 1/2 1/4 3/8 1/2 1/4 3/8 1/4 3/8 1/2 1/4 3/8 1/2
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2 1/2
2 1/2
C
18
1/16
3/16 3/16 1/4 5/16
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Flight Thickness (in)
3/16
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118
2
U
2 2 7/16
1/16
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F G H D Bushing Bore Inside Spacing 1st Centers 2nd Nominal Bolt Diameter Bolt Hole Bolt Hole Hole Size (in) (in) (in) (in) Plus Minus Min. Max. C
Plus Minus
2
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1 1/2 9
6S309 6S312 9S312 9S412 9S416 12S412 12S512 12S516 12S616 12S624 14S512 14S616 14S624 16S612 16S616 16S624 16S632 18S616 18S624 18S632 18S716 18S724 18S732 20S616 20S624 20S716 20S724 20S732 24S716 24S724 24S732
Length (in)
m
1 1/2
6
B
A Diameter Tolerance (in)
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Listed Pipe Screw Coupling Size Size Diameter Diameter Designation SCH 40 and Pitch (in) (in) (in)
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3/4
7/8
3
7/8
3
1.505 1.516
1/4
2.005 2.016
17/32 17/32
2.005 2.016
7/8
2.443 2.458
15/16
3.005 3.025
1
2.443 2.458
15/16
21/32 21/32
3
21/32 25/32 21/32
3/4
1/4
3.005 3.025
1
3/4
1/4 3.005 3.025
1
3
25/32
3.005 3.025
1
3
25/32
3/4
1/2 3.443 3.467
1 1/2
4
29/32
3.005 3.025
1
3
25/32
3.443 3.467
1 1/2
4
29/32
1/2 3.443 3.467
1 1/2
4
29/32
7/8
7/8
3
25/32
1/2
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-002
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-003 Cut-and-Folded Flight Conveyor Screws
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Depth of cut “C” is one half the flight width for normal maximum pipe size. Lengths “A” & “B” are calculated from the developed O.D. for a standard pitch.
Screw Diameter and Pitch (in) 6 9 12 14 16 18 20 24
A (in)
B (in)
C (in)
2 3 4 4 5/8 5 1/4 6 6 5/8 7 7/8
1 1/2 2 1/8 2 3/4 3 1/8 3 1/2 3 7/8 4 1/4 4 7/8
7/8 1 1/2 2 2 1/2 3 3 3/8 3 7/8 4 7/8
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-003
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-004 Cut Flight Conveyor Screws
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Depth of cut “C” is one half the flight width for normal maximum pipe size. Lengths “A” & “B” are calculated from the developed O.D. for a standard pitch.
Screw Diameter and Pitch (in) 6 9 12 14 16 18 20 24
A (in)
B (in)
C (in)
2 3 4 4 5/8 5 1/4 6 6 5/8 7 7/8
1 1/2 2 1/8 2 3/4 3 1/8 3 1/2 3 7/8 4 1/4 4 7/8
7/8 1 1/2 2 2 1/2 3 3 3/8 3 7/8 4 7/8
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-004
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-005
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A (in)
B Nominal (in)
7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 7 1/4 9 1/4
17/32 17/32 21/32 21/32 21/32 25/32 21/32 25/32 25/32 25/32 25/32 29/32
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Screw Pipe Size Diameter SCH 40 and Pitch (in) (in) 6 2 2 9 2 1/2 2 1/2 12 3 3 1/2 3 14 3 1/2 16 3 1/2 18 3 1/2 20 3 1/2 24 4
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Conveyor Screws with Paddles
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-005
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-006
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Ribbon Flight Conveyor Screws
18 20 24
3 3 7/16 3 7/16
3 1/2 4 4
1/8
3/8
141
1/8
3/8
141 140 140
3/16 3/16 3/16
3/8 3/8 3/8
U
141
9
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3 1/2
.
141
N LY
3 3 3 1/2
SE
3
142
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A
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C
16
2 1/2
Plus Minus 1/16 3/16 1/16 3/16 5/16 1/8 3/8 1/8 3/8
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118 118
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2 7/16 2 7/16 3
2 2
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2
12
6R312 9R316 12R416 12R424 12R524 14R524 14R624 16R616 16R624 18R624 20R724 24R724
F G H D Bushing Flight Size Bore Inside Spacing 1st Centers 2nd Nominal Bolt (in) Diameter Bolt Hole Bolt Hole Hole Size (in) (in) (in) (in) Thick. Width Min. Max. 3/16 1 1.505 1.516 7/8 3 17/32 1/4 1 1/2 1.505 1.516 7/8 3 17/32 1/4 2 2.005 2.016 7/8 3/8 2 1/2 3 21/32 3/8 2 1/2 2.443 2.458 15/16 2.443 2.458 15/16 21/32 3/8 2 1/2 3 25/32 3.005 3.025 1 1/4 25/32 2 1/2 3.005 3.025 1 3 25/32 3/8 25/32 3/8 3 3.005 3.025 1 3 3/8 3 3.443 3.467 1 1/2 4 29/32 3/8 3 3.443 3.467 1 1/2 4 29/32 B
Diameter Tolerance (in)
Length (in)
m
1 1/2 1 1/2
6 9
A
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Listed Pipe Screw Coupling Size Size Diameter Diameter Designation SCH 40 and Pitch (in) (in) (in)
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-006
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-007
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Paddle Conveyor Screws
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Screw Pipe Size B Diameter A SCH 40 Nominal and Pitch (in) (in) (in) (in) 6 2 3 7/8 17/32 2 3 7/8 17/32 9 2 1/2 3 7/8 21/32 2 1/2 3 7/8 21/32 12 3 3 15/16 21/32 3 1/2 4 25/32 3 3 15/16 21/32 14 3 1/2 4 25/32 16 3 1/2 4 25/32 18 3 1/2 4 25/32 20 3 1/2 4 25/32 24 4 5 1/2 29/32
13
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
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NEW IMAGES – 300-007
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NEW IMAGES – 300-008
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CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-008
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Paddles
Welded
Ju
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Ajustable
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Pipe Conveyor Size A B C Diameter SCH 40 (in) (in) (in) (in) (in) 2 6 3 2 1/16 1 13/16 2 4 1/2 2 3/4 3 5/16 9 2 1/2 4 1/2 2 3/4 3 1/16 2 1/2 6 3 11/16 4 9/16 3 6 3 11/16 4 1/4 12 3 1/2 6 3 11/16 4 3 7 4 1/4 5 1/4 14 3 1/2 7 4 1/4 5 3 1/2 8 4 15/16 6 16 3 1/2 9 5 3/8 7 18 3 1/2 10 6 1/8 8 20 4 12 7 3/8 9 3/4 24
15
D (in)
F (in)
G (in)
J (in)
K (in)
1/4 1/4 1/4 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 1/2
1/2 1/2 5/8 5/8 5/8 3/4 5/8 3/4 3/4 3/4 3/4 7/8
1 7/16 1 1/2 1 5/8 1 3/4 1 7/8 2 2 2 1/8 2 1/4 2 1/8 2 7/16 2 11/16
2 3/8 2 3/8 2 7/8 2 7/8 3 1/2 4 3 1/2 4 4 4 4 4 1/2
5/8 5/8 3/4 3/4 3/4 7/8 3/4 7/8 7/8 7/8 7/8 1
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-009
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Angle U-Trough
7
1 1/4 x 1 1/4 x 3/16
4 1/2
120
9 11/16
10
1 1/2 x 1 1/2 x 3/16
6 1/8
120
13 3/8
13
2 x 2 x 3/16
7 3/4
144
17 1/2
15
2 x 2 x 3/16
9 1/4
144
19 1/2
17
2 x 2 x 3/16
10 5/8
144
21 1/2
19
2 1/2 x 2 1/2 x 1/4
12 1/8
144
24 1/2
21
2 1/2 x 2 1/2 x 1/4
13 1/2
144
26 1/2
25
2 1/2 x 2 1/2 x 1/4
16 1/2
144
30 1/2
e
itt e
16 14 10 14 12 10 3/16 12 10 3/16 1/4 12 10 3/16 1/4 12 10 3/16 1/4 10 3/16 1/4 10 3/16 1/4 10 3/16 1/4
U
SE
O
C Drop (in)
on ve yo rC om
m
6
L D Standard Maximum Width Length (in) (in)
B Size of Angles (in)
A Trough Screw Diameter Thickness Inside (in) (in) (in)
9
14
16
C
EM
A
Sc re
w
C
12
18
20
24
16
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-009
17
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-010
D Inside Radius (in)
E Standard Length (in)
7
3 1/2
120
21 1/2
9
5
120
22
26 1/2
10
6 1/2
144
24
28 1/2
11
7 1/2
144
28
32 1/2
11 1/2
8 1/2
144
31
36 1/2
12 1/8
9 1/2
144
34
39 1/2
13 1/2
10 1/2
144
40
45 1/2
16 1/2
12 1/2
144
14
18
C
EM
A
Sc re
w
C
16
20 24
21 ne
Ju
SE
O
N LY
.
16 5/8
e
U
18
on ve yo rC om
12
14
itt e
9
14 10 12 3/16 10 3/16 1/4 10 3/16 1/4 10 3/16 1/4 3/16 1/4 3/16 1/4 3/16 1/4
m
6
,2
C Drop (in)
Screw Trough A Diameter Thickness Inside (in) (in) (in)
B Maximum Width (in)
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Flared Trough
18
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-010
19
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-011
6
C
9
Thickness (in) Trough Spout 14 16, 14 & 10 14, 12 & 10 14 3/16 10 12 & 10 12 3/16 3/16 & 1/4 12 & 10 12 3/16 3/16 & 1/4 12 & 10 12 3/16 3/16 & 1/4 10 12 3/16 3/16 & 1/4 10 12 3/16 3/16 & 1/4 10 12 3/16 3/16 & 1/4
Sc re
w
12
E (in)
F (in)
H (in)
J (in)
JF (in)
P (in)
R (Qty.)
-
3
6
7 1/2
3/8
12
4
-
4
8
10
3/8
12
7/8
5 1/8
-
5 1/4
10 1/2
12 1/2
3/8
12
19 1/4
7/8
3 1/2
3 1/2
3 1/2
11 1/2
13 1/2
3/8
20
17
21 1/4
7/8
3 3/4
4
4
13 1/2
14 1/2
3/8
20
12 3/8
19
24 1/4
1 1/8
4 7/16
4 3/8
4 3/8
14 1/2
16 1/2
1/2
20
13 3/8
21
26 1/4
1 1/8
4 7/8
4 3/4
4 3/4
15 1/2
17 1/2
1/2
20
15 3/8
25
30 1/4
1 1/8 5 5/8
5 5/8
5 1/2
17 1/2
20
1/2
20
B (in)
C (in)
5
7
10
7 1/8
10
13
1/2
8 7/8
13
17 1/4
10 1/8
15
11 1/8
11/16 2 13/16
C
16
EM
A
14
G (in)
A (in)
on ve yo rC om
Conveyor Diameter (in)
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Conveyor Discharge Spouts, Plain
18 20 24
20
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-011
21
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-012
N LY
D (in)
E (in)
6 5/8
3 3/4
10 3/8
2
14 1/8 12 GA
5/16
8
5 3/8
13 3/8
2
18 3/4 12 GA
5/16
10 1/8 7 3/16 17 5/16
2
24 1/2 10 GA
5/16
10 1/8 11 1/4 8 3/16 19 7/16
2
27 5/8 10 GA
5/16
11 1/8 12 3/8 9 3/16 21 9/16
2
30 3/4 10 GA
5/16
12 3/8 13 3/8 10 3/16 23 9/16
2
33 3/4 10 GA
5/16
13 3/8 14 3/8 11 3/16 25 9/16
2
36 3/4
3/16
3/8
15 3/8 16 3/8 13 1/4 29 5/8
2
42 7/8
3/16
3/8
U
SE
O
C (in)
5
B (in)
7 1/8
F (in)
G (in)
H (in)
on ve yo rC om
m
9
A (in)
e
6
Thickness (in) Trough Spout 14 16, 14 & 10 14, 12 & 10 14 3/16 10 12 & 10 12 3/16 3/16 & 1/4 12 & 10 12 3/16 3/16 & 1/4 12 & 10 12 3/16 3/16 & 1/4 10 12 3/16 3/16 & 1/4 10 12 3/16 3/16 & 1/4 10 12 3/16 3/16 & 1/4
itt e
Conveyor Diameter (in)
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Hands Slides for Conveyor Discharge Spouts
12 14
A
18
Sc re
w
C
16
8 7/8
C
EM
20 24
22
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-012
23
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-013
14 16 18 20
Ju
8 1/8
9 3/4
6 1/8
7 7/8
9 3/8
13 1/2
7 3/4
9 5/8
12 1/4
H (in)
1 1/2
1
3/16
1 5/8
1 1/2
1/4
2
1 5/8
1/4
U
SE
O
N LY
.
5 5/8
17 1/4
9 1/4
10 7/8
13 1/2
19 1/4
2
1 5/8
5/16
10 5/8
12
14 7/8
21 1/4
2 1/2
2
5/16
12 1/8
13 3/8
16
24 1/4
2 1/2
2
3/8
13 1/2
15
19 1/4
26 1/4
2 1/2
2 1/4
3/8
16 1/2
18 1/8
20
30 1/4
2 1/2
2 1/2
3/8
C
EM
A
Sc re
w
C
24
4 1/2
G (in)
e
12
1 5/8 1 5/8 2 1/8 2 1/8 2 9/16 3 1/8 2 9/16 3 1/8 3 1/8 3 1/8 3 9/16 3 1/8 3 9/16 3 9/16
D (in)
itt e
9
1 1/2 1 1/2 2 2 2 7/16 3 2 7/16 3 3 3 3 7/16 3 3 7/16 3 7/16
C (in)
on ve yo rC om
6
F E Minimum Minimum (in) (in)
B (in)
m
A Screw Shaft Diameter Diameter Minimum (in) (in) (in)
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
U-Trough End Plates
24
J (in) 4 4 5 1/8 5 1/8 5 5/8 6 5 5/8 6 6 6 6 3/4 6 6 3/4 6 3/4
K Diameter (in)
L (in)
M (in)
3/8
1 3/4
1/2
2 5/8
5/8
2 3/4
Bolt 1/2 1/2 5/8
Stud 7/16 7/16 9/16
5/8
9/16
3/4 5/8 3/4 3/4
3/4 9/16 3/4 3/4
5/8
2 7/8
5/8
3 1/4
3/4
3/4
5/8
3 1/4
3/4
3/4
3/4
3 3/4
3/4
3/4
3/4
4 1/8
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-013
25
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-014
14 16 18 20
9 3/8
13 1/2
10
9 5/8
12 1/4
17 1/4
ne
7 7/8
Ju
9
1 1/2
1
3/16
1 1/2
1/4
1 5/8
1/4
.
9 3/4
1 5/8
H (in)
2
U
SE
O
8 1/8
11
10 7/8
13 1/2
19 1/4
2
1 5/8
5/16
14 7/8
21 1/4
2 1/2
2
5/16
16
24 1/4
2 1/2
2
3/8
11 1/2
12
12 1/8
13 3/8
13 1/2
15
19 1/4
26 1/4
2 1/2
2 1/4
3/8
16 1/2
18 1/8
20
30 1/4
2 1/2
2 1/2
3/8
C
EM
A
Sc re
w
C
24
5 5/8
e
12
7
G (in)
itt e
9
1 5/8 1 5/8 2 1/8 2 1/8 2 9/16 3 1/8 2 9/16 3 1/8 3 1/8 3 1/8 3 9/16 3 1/8 3 9/16 3 9/16
D (in)
m
1 1/2 1 1/2 2 2 2 7/16 3 2 7/16 3 3 3 3 7/16 3 3 7/16 3 7/16
C (in)
on ve yo rC om
6
F E Minimum Minimum (in) (in)
B (in)
N LY
Screw A Shaft Diameter Diameter Minimum (in) (in) (in)
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Flared Trough End Plates
26
J (in) 4 4 5 1/8 5 1/8 5 5/8 6 5 5/8 6 6 6 6 3/4 6 6 3/4 6 3/4
K Diameter (in)
L (in)
M (in)
N (in)
3/8
1 3/4
16 5/8
1/2
2 5/8
21 1/4
5/8
2 3/4
26 3/8
Bolt 1/2 1/2 5/8
Stud 7/16 7/16 9/16
5/8
9/16
3/4 5/8 3/4 3/4
3/4 9/16 3/4 3/4
5/8
2 7/8
28 3/8
5/8
3 1/4
32 1/2
3/4
3/4
5/8
3 1/4
36 1/2
3/4
3/4
3/4
3 3/4
39 1/2
3/4
3/4
3/4
4 1/8
45 1/2
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-014
27
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-015
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
U-Trough Flange Bolt Hole Patterns
C
EM
A
Sc re
w
C
Screw Bolts Diameter Diameter Holes (in) (in) (in) 6 3/8 6 9 3/8 8 12 1/2 8 14 1/2 8 16 5/8 8 18 5/8 10 20 5/8 10 12 24 5/8
B (in)
C (in)
E (in)
4 1/2 4 7/16 1 1/32 6 1/8 6 1/4 1 3/16 7 3/4 7 15/16 1 1/2 9 1/4 8 15/16 2 17/32 10 5/8 10 2 5/8 12 1/8 11 2 23/32 13 1/2 12 3/16 2 25/32 16 1/2 14 1/4 2 25/32
28
F (in)
G (in)
H (in)
4 1/8 4 1/8 5 5/16 5 5/8 6 3/8 5 15/16 6 1/4 6 1/8
4 1/16 3 3/4 4 1/16 5 15/16 6 5/8 5 7/8 6 11/16 6 5/8
2 1/32 2 9/16 3 7/8 3 3 3/4 2 15/16 3 11/32 3 5/16
J (in)
K (in)
4 1/8 5 3/16 5 15/16 6 5/8 5 7/8 5 7/8 6 11/16 6 11/16 6 5/8 6 5/8
L (in) 6 5/8
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-015
29
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-016
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Flared Trough Flange Bolt Hole Patterns
C
EM
A
Sc re
w
C
Bolts Screw Diameter Diameter Holes (in) (in) (in) 6 3/8 6 9 3/8 8 12 1/2 8 14 1/2 10 16 5/8 10 18 5/8 10 20 5/8 10 12 24 5/8
A (in)
B (in)
C (in)
E (in)
F (in)
G (in)
H (in)
4 7/16 6 1/4 7 15/16 8 15/16 10 11 12 3/16 14 1/4
7 9 10 11 11 1/2 12 1/8 13 1/2 16 1/2
7 3/16 9 21/32 11 13/16 12 49/64 14 11/16 16 17 7/8 20 61/64
1 27/32 1 43/64 1 13/16 2 1/16 2 15/64 2 5/8 2 9/32 2 5/16
5 1/4 5 5 3/4 5 1/8 5 1/2 6 3/16 7 6 7/8
5 1/4 5 5 3/4 5 1/8 5 1/2 6 3/16 7 6 7/8
2 1/32 2 9/16 3 7/8 3 3 3/4 2 15/16 3 11/32 3 5/16
30
J (in)
K (in)
5 5 3/4 5 1/8 5 1/8 5 1/2 5 1/2 6 3/16 6 3/16 7 7 6 7/8 6 7/8
L (in) 6 7/8
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-016
31
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-017
itt e
e
U
SE
N LY
O
C (in)
7/8 7/8 15/16 1 1 1/4
D (in) 3 3 3 3 4
L E (in)
F* (in)
17/32 1 1/4 21/32 1 1/4 21/32 1 13/16 25/32 1 7/8 29/32 2 3/8
G (in)
H (in)
1 3/4 1 3/4 1 3/4 1 3/4 2 1/4
3 1/4 4 1/2 5 1/2 6 7 1/4
For Bab For Ball Bearing Bearing (in) (in) 3 1/4 2 1/4 4 1/4 2 5/8 5 3/16 2 15/16 6 1/4 3 3/4 7 1/4 4 1/4
M (in) 7/8 7/8 15/16 1 1 1/2
Dimension “F” is equal to one half (1/2) the hanger bearing space plus the thickness of the trough end plate from sub-standard 300-013 or 300-014. Where more than one thickness is shown on these standards for the same shaft size, the greater thickness has been used
C
EM
A
Sc re
w
C
m
1 1/2 2 2 7/16 3 3 7/16
on ve yo rC om
A (in)
B For Bab Bearing For Ball Bearing Without Without With Seal With Seal Seal Seal (in) (in) (in) (in) 14 1/4 12 1/2 13 1/4 11 1/2 16 1/2 14 3/4 14 7/8 13 1/8 19 1/8 17 3/8 16 7/8 15 1/8 20 7/8 19 1/8 18 3/8 16 5/8 23 5/8 22 7/8 20 5/8 25 7/8
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Drive Shafts
32
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-017
33
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-018
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
End Shafts
U
SE
B For Bab Bearing For Ball Bearing Without Without With Seal With Seal Seal Seal (in) (in) (in) (in) 11 9 1/4 10 8 1/4 12 10 1/4 10 3/8 8 5/8 13 5/8 11 7/8 11 3/8 9 5/8 14 7/8 13 1/8 13 3/8 10 5/8 16 3/8 15 5/8 13 3/8 18 5/8
L C (in)
D (in)
7/8 7/8 15/16 1 1 1/4
3 3 3 3 4
E (in)
F* (in)
G (in)
C
17/32 1 1/4 21/32 1 1/4 21/32 1 13/16 25/32 1 7/8 29/32 2 3/8
1 3/4 1 3/4 1 3/4 1 3/4 2 1/4
For Bab For Ball Bearing Bearing (in) (in) 3 1/4 2 1/4 4 1/4 2 5/8 5 3/16 2 15/16 6 1/4 3 3/4 7 1/4 4 1/4
Dimension “F” is equal to one half (1/2) the hanger bearing space plus the thickness of the trough end plate from sub-standard 300-013 or 300-014. Where more than one thickness is shown on these standards for the same shaft size, the greater thickness has been used
C
EM
A
Sc re
w
1 1/2 2 2 7/16 3 3 7/16
on ve yo rC om
m
itt e
e
A (in)
34
M (in) 7/8 7/8 15/16 1 1 1/2
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-018
35
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-019A
.
itt e
e
U
SE
O
N LY
B C (in) (in) 11 1/2 7/8 11 1/2 7/8 12 3/4 15/16 13 1 17 1/2 1 1/4 18 3/4 1 11/16 20 1/2 1 7/8 22 2 1/4
C
EM
A
Sc re
w
C
on ve yo rC om
m
A (in) 1 1/2 2 2 7/16 3 3 7/16 3 15/16 4 7/16 4 15/16
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
2-Bolts Coupling Shafts
36
D (in) 3 3 3 3 4 4 4 4
E (in) 17/32 21/32 21/32 25/32 29/32 1 5/32 1 9/32 1 17/32
F (in) 3 3/4 3 3/4 4 7/8 5 7 7 3/8 8 3/4 9 1/2
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-019-A
37
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-019B
,2
01
9
E (in) 17/32 21/32 21/32 25/32 29/32 1 5/32 1 9/32 1 17/32
21
ne
D (in) 3 3 3 3 4 4 4 4
Ju .
SE
O
N LY
B C (in) (in) 17 1/2 7/8 17 1/2 7/8 18 3/4 15/16 19 1 25 1/2 1 1/4 26 3/4 1 11/16 28 1/2 1 7/8 30 2 1/4
NEW IMAGES – 300-019-B ?????? ??????
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
A (in) 1 1/2 2 2 7/16 3 3 7/16 3 15/16 4 7/16 4 15/16
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
3-Bolts Coupling Shafts
38
F (in) 3 3/4 3 3/4 4 7/8 5 7 7 3/8 8 3/4 9 1/2
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-020
E (in)
F** (in)
H (in)
T (in)
4 1/2
2
2 1/2
5
3/8
3/16
1
6 1/8
2
2 1/2
5
3/8
3/16
13
1 1/4 7 3/4
2 3 3
2 1/2
5
1/2
3/8
15
1 3/8 9 1/4
3
2 1/2
5
1/2
3/8
17
1 3/8 10 5/8
2 1/2
5
1/2
3/8
19
1 5/8 12 1/8
3 1/2
6
5/8
1/2
21
1 5/8 13 1/2
3 1/2
6
5/8
1/2
25
1 3/4 16 1/2
3 3 4 3 4 4
3 1/2
6
5/8
1/2
N LY
3/4
m
itt e
e
U
O
7
C (in)
.
D* (in)
SE
C
w
B (in)
C
EM
A
Sc re
A (in)
10
on ve yo rC om
Screw Coupling Diameter Diameter (in) (in) 1 1/2 6 1 1/2 9 2 2 2 7/16 12 3 2 7/16 14 3 3 16 3 18 3 7/16 3 20 3 7/16 24 3 7/16
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Type 216 – Hangers and Bearings
Dimension “D” is the space allowed on couplings. Bearing width will always be less than this dimension. ** Dimension “F” may vary with different manufacturers, but will not exceed the dimension stated.
39
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-020
40
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Type 216 – Hanger Bearing Dimensions and Tolerances
m
A (in)
on ve yo rC om
Size (in)
itt e
e
U
SE
Note: Only critical dimensions are shown. All other dimensions are considered non-critical and based on each individual manufacturer’s standard.
B* (in)
C (in)
D (in)
E (in)
F (in)
EM
A
Sc re
w
C
1 1/2 1 15/16 1 9/16 1 3/8 to 19/16 1 1/2 1 3/8 9/16 2 1 15/16 1 9/16 19/16 2 1 5/8 9/16 2 15/16 2 3/8 1 5/8 to 17/16 2 1/8 9/16 2 7/16 2 7/16 3 2 15/16 2 3/8 2 1/16 to 2 7/16 3 2 1/4 9/16 3 15/16 3 1/8 2 9/16 to 3 1/4 3 7/16 2 7/16 11/16 3 7/16 TOLERANCE (in) + 0, -1/16 +/- 1/16 +0, -1/16 +1/32, -0 +/- 1/16 +/- 1/32
Dimension “B” can vary from different manufacturers.
C
41
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – Type 216
42
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-021
D (in)
E (in)
F (in)
H (in)
T (in)
7
3/4
4 1/2
2
2 1/2
5
3/8
3/16
10
1
6 1/8
2
2 1/2
5
3/8
3/16
13
1 1/4 7 3/4
2 3 3
2 1/2
5
1/2
3/8
15
1 3/8 9 1/4
3
2 1/2
5
1/2
3/8
17
1 3/8 10 5/8
2 1/2
5
1/2
3/8
19
1 5/8 12 1/8
3 1/2
6
5/8
1/2
21
1 5/8 13 1/2
3 1/2
6
5/8
1/2
25
1 3/4 16 1/2
3 3 4 3 4 4
3 1/2
6
5/8
1/2
m
C
EM
A
Sc re
w
e
C
on ve yo rC om
O
C (in)
SE
B (in)
U
A (in)
itt e
Screw Coupling Diameter Diameter (in) (in) 1 1/2 6 1 1/2 9 2 2 2 7/16 12 3 2 7/16 14 3 3 16 3 18 3 7/16 3 20 3 7/16 24 3 7/16
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Type 226 – Hangers and Bearings
Dimension “D” is the space allowed on couplings. Bearing width will always be less than this dimension. ** Dimension “F” may vary with different manufacturers, but will not exceed the dimension stated.
43
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-021
C
EM
A
Sc re
w
C
44
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
FO
R
D
IS TR
IB
U
TI O
N
Type 226 – Hanger Bearing Dimensions and Tolerances
ne
N LY
O
SE
U
e
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
D (in)
1 1/2 1 1 1/8 1 9/16 2 1/8 1 1/2 2 3/4 2 1 9/16 2 3/8 3 1/4 2 7/16 2 3/8 4 3 3 1/8 4 3/4 3 7/16 +/- 1/16 +/- 1/16 +1/32, -0
.
1 1 7/16 1 1/2 1 15/16 2 1 15/16 2 7/16 2 15/16 3 2 15/16 3 15/16 3 7/16 TOLERANCE (in) + 0, -1/16
C (in)
,2
B (in)
21
A (in)
Ju
Size (in)
01
9
-N O
T
Note: Only critical dimensions are shown. All other dimensions are considered non-critical and based on each individual manufacturer’s standard.
45
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – Type 226
46
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-022
m
.
SE
U
N LY
1/2 5/8 5/8 3/4 3/4 7/8
B (in)
C (in)
D (in)
3 3 5/8 4 3/8 5 5 1/2 5 1/2
5/8 3/4 7/8 1 1 1
2 3/8 2 7/8 3 1/2 4 4 1/2 4 1/2
ne
Ju
A (in)
O
Pipe O.D. (in) 2 3/8 2 7/8 3 1/2 4 4 1/2 4 1/2
e
itt e
Pipe Size (in) 2 2 1/2 3 3 1/2 4 4
on ve yo rC om
Coupling Diameter (in) 1 1/2 2 2 7/16 3 3 3 7/16
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Coupling Bolts with nuts
Shoulder Length Tolerance = + 1/8 in / - 0
Sc re
w
C
The coupling bolt shoulder length will be, at a minimum, the same as the outer diameter of the pipe. This will allow the nut to reach the end of the threads / start of the shoulder on all shaft sizes. The nut should be snug against the shoulder of the bolt without over tightening.
C
EM
A
Warning: Over tightening the nut could exceed the tensile stress of the bolt.
47
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-022
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
NEW IMAGES – 300-023
48
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-023
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
U-Trough Flanged Covers
C (in)
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Minimum A B Conveyor Cover Minimum Minimum Diameter Thickness (in) (in) (in) (in) 6 16 9 7/8 1/2 9 16 13 1/2 1/2 12 14 17 1/2 1/2 14 14 19 1/2 1/2 16 14 21 1/2 1/2 18 14 24 1/2 1/2 20 14 26 1/2 1/2 24 12 30 1/2 1/2
49
1 1/2 1 5/8 2 2 2 1/2 2 1/2 2 1/2 2 1/2
D Standard Length (in) 120 120 144 144 144 144 144 144
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-024
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
U-Trough Semi - Flanged Covers
C (in)
10 7/8 14 5/8 18 3/8 20 3/8 22 3/8 25 3/8 27 1/2 31 3/8
3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16
9 11/16 13 3/8 17 1/2 19 1/2 21 1/2 24 1/2 26 1/2 30 1/2
w
C
on ve yo rC om
16 16 14 14 14 14 14 12
C
EM
A
Sc re
6 9 12 14 16 18 20 24
m
itt e
e
U
SE
Minimum A B Conveyor Cover Minimum Minimum Diameter Thickness (in) (in) (in) (in)
50
D Minimun (in) 1/4 1/4 5/16 5/16 5/16 5/16 5/16 5/16
E (in)
F (in)
G Standard Length (in)
60 60 60 60 60 60 60 60
1 1/2 1 5/8 2 2 2 1/2 2 1/2 2 1/2 2 1/2
120 120 144 144 144 144 144 144
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
NEW IMAGES – 300-025
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-024
51
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-025
m
itt e
e
U
O
SE
16 14 14 14 14 12 12 12
C Standard Length (in)
1 1/2 1 5/8 2 2 2 1/2 2 1/2 2 1/2 2 1/2
120 120 144 144 144 144 144 144
Ju
ne
21 B (in)
. 9 11/16 13 3/8 17 1/2 19 1/2 21 1/2 24 1/2 26 1/2 30 1/2
C
EM
A
Sc re
w
C
on ve yo rC om
6 9 12 14 16 18 20 24
A (in)
N LY
Minimum Conveyor Cover Diameter Thickness (in) (in)
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
U-Trough Flat Covers
52
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-026
m
16 14 10 14 12 10 12 10 12 10 12 10 10 10 10
6
12 14
C
EM
A
Sc re
w
C
9
16 18 20 24
e
U
SE
Part Number
itt e
Material Gauge (in)
on ve yo rC om
Screw Diameter (in)
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Double Flanged U-Troughs
6DF16C 6DF14C 6DF10C 9DF14C 9DF12C 9DF10C 12DF12C 12DF10C 14DF12C 14DF10C 16DF12C 16DF10C 18DF10C 20DF10C 24DF10C
A Inside (in)
C drop (in)
7 7 7 10 10 10 13 13 15 15 17 17 19 21 25
4 1/2 4 1/2 4 1/2 6 1/8 6 1/8 6 1/8 7 3/4 7 3/4 9 1/4 9 1/4 10 5/8 10 5/8 12 1/8 13 1/2 16 1/2
53
D L Standard Maximum Length Width (in) (in) 120 9 11/16 120 9 11/16 120 9 11/16 120 13 3/8 120 13 3/8 120 13 3/8 144 17 1/2 144 17 1/2 144 19 1/2 144 19 1/2 144 21 1/2 144 21 1/2 144 24 1/2 144 26 1/2 144 30 1/2
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-026
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
NEW IMAGES – 300-027
54
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-027
C (in)
D* (in)
E (in)
F** (in)
H (in)
T (in)
3/4
4 1/2
2
2 1/2
5
3/8
3/16
1
6 1/8
2
2 1/2
5
3/8
3/16
2 1/2
5
1/2
3/8
2 1/2
5
1/2
3/8
2 1/2
5
1/2
3/8
3 1/2
6
5/8
1/2
3 1/2
6
5/8
1/2
3 1/2
6
5/8
1/2
itt e
SE
e
U
7
B (in)
O
A (in)
m
10 13
1 1/4 7 3/4
15
1 3/8 9 1/4
17
1 3/8 10 5/8
19
1 5/8 12 1/8
21
1 5/8 13 1/2
25
1 3/4 16 1/2
C
EM
A
Sc re
w
C
on ve yo rC om
Screw Coupling Diameter Diameter (in) (in) 1 1/2 6 1 1/2 9 2 2 12 2 7/16 3 2 7/16 14 3 3 16 3 18 3 7/16 3 20 3 7/16 24 3 7/16
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Type 270 – Ball Bearing Hangers
2 3 3 3 3 3 3 4 3 4 4
Dimension “D” is the space allowed on couplings. Bearing width will always be less than this dimension. ** Dimension “F” may vary with different manufacturers, but will not exceed the dimension stated. 55
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-028
D* (in)
E (in)
F** (in)
H (in)
T (in)
3/4
4 1/2
2
2 1/2
6
3/8
3/16
1
6 1/8
2
2 1/2
6
3/8
3/16
13
1 1/4 7 3/4
2 3 3
2 1/2 6 1/2
1/2
3/8
15
1 3/8 9 1/4
3
2 1/2 6 1/2
1/2
3/8
17
1 3/8 10 5/8
2 1/2
8
1/2
3/8
19
1 5/8 12 1/8
3 1/2
8
5/8
1/2
21
1 5/8 13 1/2
3 1/2
8
5/8
1/2
25
1 3/4 16 1/2
3 3 4 3 4 4
3 1/2
8
5/8
1/2
N LY
7
m
itt e
e
U
O
B (in)
.
C (in)
SE
C
w
Sc re A EM C
A (in)
10
on ve yo rC om
Screw Coupling Diameter Diameter (in) (in) 1 1/2 6 1 1/2 9 2 2 2 7/16 12 3 2 7/16 14 3 3 16 3 18 3 7/16 3 20 3 7/16 24 3 7/16
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Type 326 – Hangers
Dimension “D” is the space allowed on couplings. Bearing width will always be less than this dimension. ** Dimension “F” may vary with different manufacturers, but will not exceed the dimension stated.
56
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-028
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
NEW IMAGES – 300-029
57
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-029
F** (in)
H (in)
T (in)
4 1/2
2
2 1/2
6
3/8
3/16
10
6 1/8
2
2 1/2
6
3/8
3/16
13
1 1/4 7 3/4
2 3 3
2 1/2 6 1/2
1/2
3/8
15
1 3/8 9 1/4
3
2 1/2 6 1/2
1/2
3/8
17
1 3/8 10 5/8
2 1/2
8
1/2
3/8
19
1 5/8 12 1/8
3 1/2
8
5/8
1/2
21
1 5/8 13 1/2
3 1/2
8
5/8
1/2
25
1 3/4 16 1/2
3 3 4 3 4 4
3 1/2
8
5/8
1/2
.
3/4
N LY
7
m
e
U
1
C (in)
ne
E (in)
O
B (in)
Ju
D* (in)
itt e
A (in)
C
EM
A
Sc re
w
C
on ve yo rC om
Screw Coupling Diameter Diameter (in) (in) 1 1/2 6 1 1/2 9 2 2 2 7/16 12 3 2 7/16 14 3 3 16 3 18 3 7/16 3 20 3 7/16 24 3 7/16
SE
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Type 316 – Hangers
Dimension “D” is the space allowed on couplings. Bearing width will always be less than this dimension. ** Dimension “F” may vary with different manufacturers, but will not exceed the dimension stated.
58
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-030
SE
B (in)
4 5 1/8 5 5/8 6 6 3/4
C Minimum (in) 1 5/8 2 1/8 2 9/16 3 1/8 3 9/16
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
A Shaft Diameter Maximum (in) (in) 1 1/2 5 3/8 2 6 1/2 2 7/16 7 3/8 3 7 7/8 9 1/4 3 7/16
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Packing Seal Housing
59
D (in)
E (in)
1/2 5/8 5/8 3/4 3/4
1 3/4 1 3/4 1 3/4 1 3/4 2 1/4
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-030
60
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-031
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Shrouds
Screw Diameter (in) 6 9 12 14 16 18 20 24
A (in)
B (in)
F (in)
L (in)
U (in)
7 10 13 15 17 19 21 25
14 18 22 24 28 31 34 40
7 9 10 11 11 1/2 12 1/8 13 1/2 16 1/2
12 18 24 28 32 36 40 48
4 1/2 6 1/8 7 3/4 9 1/4 10 5/8 12 1/8 13 1/2 16 1/2
Note: Material thickness, bolt hole size and bolt hole location vary among manufacturers.
61
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards NEW IMAGES – 300-031
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-032
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
NEW IMAGES – 300-032
62
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-032
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Conveyor Inlet Spout, Flanged
C
EM
A
Sc re
w
C
Conveyor Diameter (in) 6 9 12 14 16 18 20 24
Thickness Trough Inlet Minimum (in) (in) 16, 14 & 10 16 14, 12, 10 & 3/16 14 12, 10, 3/16 & 1/4 12 12, 10, 3/16 & 1/4 12 12, 10, 3/16 & 1/4 12 10, 3/16 & 1/4 12 10, 3/16 & 1/4 12 10, 3/16 & 1/4 12
63
A (in)
B (in)
8 5/8 12 15 1/2 17 1/2 19 1/2 22 24 28
7 10 13 15 17 19 21 25
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-033
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Conveyor Discharge Spouts (Three sided – Fourth side formed by trough end)
C
EM
A
Sc re
w
Notes: 1. “C” dimension based upon the drop for a plain discharge spout – See sub-standard 300011. Some Manufacturers standards for this SME of flush end discharge are based on “A” and “C” dimensions being same as U-Trough end plates, see sub-standard 300-013. 2. Bolt punching to match sub-standard 300-011 for plain discharge spout. 3. Spout gauge varies in some cases with trough thickness. 4. All dimensions are given in inches unless otherwise noted.
64
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
N (in)
O (in)
R (in)
1 7/32 1 1/32
2
3 5/8
4 7/16
9 3/4
1 1/2
7
10
3/16
7/16
7/16
13 1/4 6 1/8 7 1/8 1 3/16 1 3/16
3
3 5/8
6 1/4
13 1/2
1 5/8
10
13
1/4
7/16
7/16
16 5/8 7 3/4 8 7/8 1 1/4
3
4 5/8
7 15/16 17 1/4
2
13
17 1/4
1/4
9/16
7/16
19 3/8 9 1/4 10 1/8 2 19/32 2 17/32
3
4 3/4
8 15/16 19 1/4
2
15
19 1/4
5/16
9/16
7/16
21 3/4 10 5/8 11 1/8 2 5/8
3
5 1/2
10
21 1/4
2 1/2
17
21 1/4
5/16
11/16
7/16
24 1/2 12 1/8 12 3/8 2 17/32 2 23/32
4
4 13/16
11
24 1/4
2 1/2
19
24 1/4
3/8
11/16
9/16
26 7/8 13 1/2 13 3/8 2 27/32 2 25/32
4
5 5/16 12 3/16 26 1/4
2 1/2
21
26 1/4
3/8
31 7/8 16 1/2 15 3/8 2 27/32 2 25/32
5
5 1/4
14 1/4
2 1/2
25
30 1/4
3/8
1 1/2
S T V (Thick) (Qty.) (Qty.) 14 14 10 12 3/16 12 3/16 12 3/16 12 3/16 12 3/16 12 3/16
6
12
8
12
8
12
8
20
8
20
10
20
10
20
12
20
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
FO
01
9
-N O
T
NEW IMAGES – 300-033
65
U
IB
IS TR
30 1/4
11/16
9/16
11/16
9/16
D
2 5/8
TI O
N
5
m
24
M (in)
on ve yo rC om
20
L (in)
C
18
K (in)
w
16
J (in)
9 1/2 4 1/2
E (in)
D (in)
Sc re
14
H (in)
C (in)
A
12
G (in)
B (in)
EM
9
F (in)
A (in)
C
6
Thickness Trough P (in) (in) 16, 14 & 10 14 14, 12 & 10 14 3/16 10 12 & 10 12 3/16 & 1/4 3/16 12 & 10 12 3/16 & 1/4 3/16 12 & 10 12 3/16 & 1/4 3/16 10 12 3/16 & 1/4 3/16 10 12 3/16 & 1/4 3/16 10 12 3/16 & 1/4 3/16
R
Conveyor Diameter (in)
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards Sub-Standard 300-034
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
Shaftless Conveyor Screws
12
16
Sc re
w
C
18 20
ne
Ju
.
N LY
Minus (in)
9
1/2
1/2
0
3/8
12
1/2
1/2
0
3/8
14
1/2
1/2
0
1/2
16
1/2
1/2
0
1/2
18
1/2
1/2
0
3/4
20
1/2
1/2
0
3/4
24
1/2
1/2
C
EM
A
24
O
on ve yo rC om
14
Plus (in)
1/4
0
SE
Single Double Single Double Single Double Single Double Single Double Single Double Single Double
C Pitch Tolerance
U
10 13 15 17 19 21 25 -
e
Spiral Type
9
B Nominal Diameter Tolerance Pitch (in) Plus Minus (in) (in)
itt e
A Trough I.D. (in)
m
Nominal Screw Diameter (in)
E D Min. Bar Min. Bar Thickness Thickness (Inner) (Outer) (in) (in) 3/4 1/2 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
Notes: - The flight height varies from one manufacturer to another, based on the widths of available flat bars. - The spiral is supported on the bottom of the trough on a replaceable liner. Liner materials vary from non-metallics to abrasion resistant steels. - Maximum Conveyor Lengths are a function of the torsional limitations of the spiral.
66
CEMA Standard 300 ‐ 2018 – Screw Conveyor – Dimensional Standards
C
EM
A
Sc re
w
C
on ve yo rC om
m
itt e
e
U
SE
O
N LY
.
Ju
ne
21
,2
01
9
-N O
T
FO
R
D
IS TR
IB
U
TI O
N
NEW IMAGES – 300-034
67
