Screw Conveyor Dimensional - NOT FOR DISTRIBUTION Standards · 2019-06-21 · - NOT FOR DISTRIBUTION CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards III FOREWORD

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ANSI/CEMA 300-2009A Revision of ANSI/CEMA 300-2003

Approved: April 1, 2009

Conveyor Equipment Manufacturers Association

CEMA Standard #300

Fourth Edition

ISBN # 978-1891171-39-0

Screw Conveyor DimensionalStandards

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CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards

II

DISCLAIMER

The information provided herein in advisory only. 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. 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. 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. 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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III

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. 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. Both publications are also American National Standards.

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IV

SUMMARY OF CHANGES

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 sub-standards 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. The 2003 Edition had no changes made to it, however, the 2009 Edition was revised by adding a 34th Standard called “Shaftless Conveyor Screws”. 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) 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 2-Bolts 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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V

SAFETY NOTICE

The Conveyor Equipment Manufacturers Association has developed Industry Standard Safety Labels for use on the conveying equipment of its member companies. 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. The labels are available for sale to member companies and non-member companies. 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/safety-labels-2/ 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. Replacement labels and placement guidelines can be obtained by contacting your equipment supplier or CEMA.

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VI

TABLE OF CONTENTS

Sub-Standard Description

300-001 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

300-017 Drive Shafts

300-018 End Shafts

300-019A 2-Bolts Coupling Shafts

300-019B 3-Bolts Coupling Shafts

300-020 Type 216 Hangers


300-022 Coupling Bolts with Nuts

300-023 U-Trough Flanged Covers

300-024 U-Trough Semi-Flanged Covers

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VII

Sub-Standard Description

300-025 U-Trough Flat Covers

300-026 Double Flanged U-Troughs

300-027 Type 270 Ball Bearing 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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1

Sub-Standard 300-001

Helicoid Conveyor Screws

F G H

Plus Minus Inner EdgeNominal

Outer EdgePlus Minus Min. Max.

6H304 1/8 1/16 1/26H308 1/4 1/8 3/4

6H312 3/8 3/16 3/49H306 3/16 3/329H312 3/8 3/169H406 3/16 3/16 3/329H412 3/8 3/169H414 7/16 7/3212H408 1/4 1/812H412 3/8 3/1612H508 1/4 1/812H512 3/8 3/16

3 12H614 3 1/2 141 3/8 7/16 7/32 3.005 3.025 1 25/322 7/16 14H508 3 5/16 1/4 1/8 2.443 2.458 15/16 21/32

3 14H614 3 1/2 3/8 7/16 7/32 3.005 3.025 1 25/3216H610 5/16 5/32

16H416 7/16 7/32

18 3 18H610 3 1/2 141 3/16 3/8 5/16 5/32 1 1/2 1/4 3.005 3.025 1 3 25/32

17/32

17/32

21/32

21/32

25/32

7/8

7/8

3

3

3

3

3

3.005 3.025 1

7/8

15/162.443 2.458

1.505

1.505

1.516

1.516

2.005 2.016

2.016

1 1/2

1

1

3/4

1/4

1/4

1/4

1/4

1/4

1/8

3 1/23

141

141 1/8

1/8

3/8

141

5/16

5/16

2

2 7/16

2 1/2

3

142

118

118

1/16

1/16 3/16

1/4

3/16

2

1 1/2

1 1/2

2

2

2 1/2

14

16

Spacing 1st Bolt Hole

(in)

Centers 2nd Bolt Hole

(in)

Nominal Bolt Hole Size

(in)

6

9

12

Listed Screw

Diameter and Pitch

(in)

Coupling Diameter

(in)

Size Designation

Pipe Size

SCH 40(in)

Length(in)

B C D

Diameter Tolerance

(in)

Thickness(in)

Pitch Tolerance

(in)

Bushing Bore Inside Diameter

(in)

A

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2

NEW IMAGES – 300-001

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3


Sectional Flight Conveyor Screws

B F G H

Plus Minus Plus Minus Min. Max.

6S309 10 GA6S312 3/16

1 1/2 9S312 2 3/16 3/16 1.505 1.516 17/329S412 3/16 3/169S416 1/4 1/4

2 12S412 2 1/2 142 5/16 3/16 2.005 2.016 7/8 21/3212S512 3/1612S516 1/412S616 5/16 1/4

12S624 3/8 3/82 7/16 14S512 3 5/16 3/16 2.443 2.458 15/16 21/32

14S616 5/16 1/414S624 3/8 3/816S612 3/8 3/1616S616 3/8 1/416S624 3/8 3/816S632 1/2 1/218S616 3/8 1/418S624 3/8 3/818S632 1/2 1/218S716 3/8 1/418S724 3/8 3/818S732 1/2 1/220S616 3/8 1/420S624 3/8 3/820S716 3/8 1/420S724 3/8 3/820S732 1/2 1/224S716 3/8 1/424S724 3/8 3/824S732 1/2 1/2

3

4

25/32

29/32

4 140 3/16 7/8 1/2 3.443 3.467 1 1/2 4 29/32

25/32

29/32

3 1/2

4

141

1403/16 7/8 1/2

3.005

3.443

3.025

3.467 1 1/2

1

3.025 1

1 1/23.467

3

4140

3/16 3/4 1/2

3.005

3.443

3.0253.0051/43 1/2 141 1/8 3/4

325/32

25/3231

3/4 1/43.005 3.025 1

15/16

1

321/32

25/32

3/4 1/42.443 2.458

3.005 3.025

3 17/32

2 1/2118 1/16 1/2 1/4

2.005 2.0167/8 3

21/32

3/8 1/4 1.505 1.516 7/8

3 7/16

3 7/16

2 118 1/16

3

3 1/2

141

141

1/8

3 1/2141 1/8

3 1/2

4

141

3

3

3

3 7/16

3

Flight Thickness

(in)


(in)


(in)

C

Pitch Tolerance

(in)

DBushing

Bore Inside Diameter

(in)


(in)

A

Diameter Tolerance

(in)

6

9

12

Listed Screw

Diameter and Pitch

(in)

Coupling Diameter

(in)

Size Designation

Pipe Size

SCH 40 (in)

Length (in)

1 1/2

2

2 7/16

3

3/16

5/16

14

16

18

20

24

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5


Cut-and-Folded Flight Conveyor Screws

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)

A (in)

B (in)

C (in)

6 2 1 1/2 7/8

9 3 2 1/8 1 1/2

12 4 2 3/4 2

14 4 5/8 3 1/8 2 1/2

16 5 1/4 3 1/2 3

18 6 3 7/8 3 3/8

20 6 5/8 4 1/4 3 7/8

24 7 7/8 4 7/8 4 7/8

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7


Cut Flight Conveyor Screws

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.


(in)

A (in)

B (in)

C (in)

6 2 1 1/2 7/8

9 3 2 1/8 1 1/2

12 4 2 3/4 2

14 4 5/8 3 1/8 2 1/2

16 5 1/4 3 1/2 3

18 6 3 7/8 3 3/8

20 6 5/8 4 1/4 3 7/8

24 7 7/8 4 7/8 4 7/8

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9


Conveyor Screws with Paddles


(in)

Pipe Size SCH 40

(in)

A (in)

B Nominal

(in)

6 2 7 1/4 17/32

2 7 1/4 17/322 1/2 7 1/4 21/32

2 1/2 7 1/4 21/323 7 1/4 21/32

3 1/2 7 1/4 25/32

3 7 1/4 21/323 1/2 7 1/4 25/32

16 3 1/2 7 1/4 25/32

18 3 1/2 7 1/4 25/32

20 3 1/2 7 1/4 25/32

24 4 9 1/4 29/32

9

12

14

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11


Ribbon Flight Conveyor Screws

F G H

Plus Minus Thick. Width Min. Max.

6 1 1/2 6R312 2 118 1/16 3/16 3/16 1 1.505 1.516 7/8 3 17/32

9 1 1/2 9R316 2 118 1/16 3/16 1/4 1 1/2 1.505 1.516 7/8 3 17/32

12R416 5/16 1/4 212R424 3/8 3/8 2 1/2

2 7/16 12R524 3 141 1/8 3/8 3/8 2 1/2 2.443 2.458 15/162 7/16 14R524 3 2.443 2.458 15/16 21/32

3 14R624 3 1/2 3.005 3.025 1 25/32

16R616 1/4 25/32

16R624 3/8 25/32

18 3 18R624 3 1/2 141 3/16 3/8 3/8 3 3.005 3.025 1 3 25/32

20 3 7/16 20R724 4 140 3/16 3/8 3/8 3 3.443 3.467 1 1/2 4 29/32

24 3 7/16 24R724 4 140 3/16 3/8 3/8 3 3.443 3.467 1 1/2 4 29/32

3/81/81413 1/23 1 33.0253.0052 1/216

B D

Diameter Tolerance

(in)

Flight Size (in)

Bushing Bore Inside Diameter

(in)

Listed Screw

Diameter and Pitch

(in)

Coupling Diameter

(in)

Size Designation

Pipe Size

SCH 40 (in)

Length (in)

A

2 2 1/2 142 1/8


(in)


(in)


(in)

12

14

2.005 2.016 7/83 21/32

141 1/8 3/8 3/8 2 1/2 3

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13


Paddle Conveyor Screws


(in)

Pipe Size SCH 40

(in)

A (in)

B Nominal

(in)

6 2 3 7/8 17/32

2 3 7/8 17/322 1/2 3 7/8 21/32

2 1/2 3 7/8 21/323 3 15/16 21/32

3 1/2 4 25/32

3 3 15/16 21/323 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

9

12

14

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15


Paddles

Ajustable Welded

Conveyor Diameter

(in)

Pipe Size

SCH 40 (in)

A (in)

B (in)

C (in)

D (in)

F (in)

G (in)

J (in)

K (in)

6 2 3 2 1/16 1 13/16 1/4 1/2 1 7/16 2 3/8 5/8

2 4 1/2 2 3/4 3 5/16 1/4 1/2 1 1/2 2 3/8 5/82 1/2 4 1/2 2 3/4 3 1/16 1/4 5/8 1 5/8 2 7/8 3/4

2 1/2 6 3 11/16 4 9/16 3/8 5/8 1 3/4 2 7/8 3/43 6 3 11/16 4 1/4 3/8 5/8 1 7/8 3 1/2 3/4

3 1/2 6 3 11/16 4 3/8 3/4 2 4 7/8

3 7 4 1/4 5 1/4 3/8 5/8 2 3 1/2 3/43 1/2 7 4 1/4 5 3/8 3/4 2 1/8 4 7/8

16 3 1/2 8 4 15/16 6 3/8 3/4 2 1/4 4 7/8

18 3 1/2 9 5 3/8 7 3/8 3/4 2 1/8 4 7/8

20 3 1/2 10 6 1/8 8 3/8 3/4 2 7/16 4 7/8

24 4 12 7 3/8 9 3/4 1/2 7/8 2 11/16 4 1/2 1

14

9

12

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16


Angle U-Trough

Screw Diameter

(in)

Trough Thickness

(in)

A Inside

(in)

B Size of Angles

(in)

C Drop (in)

D Standard Length

(in)

L Maximum

Width (in)

1614

101412103/16

12103/161/4

12103/161/4

12103/161/4

103/161/4

103/161/4

103/161/4

25 2 1/2 x 2 1/2 x 1/4 16 1/2 144 30 1/2

21 2 1/2 x 2 1/2 x 1/4 13 1/2 144 26 1/2

144 21 1/2

19 2 1/2 x 2 1/2 x 1/4 12 1/8 144 24 1/2

144 17 1/2

9 1/4 144 19 1/2

120 9 11/16

6 1/8 120 13 3/8

15

17

2 x 2 x 3/16

2 x 2 x 3/16

4 1/2

7 3/4

10 5/8

1 1/4 x 1 1/4 x 3/167

10

13

1 1/2 x 1 1/2 x 3/16

2 x 2 x 3/16

18

20

24

6

9

12

14

16

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18


Flared Trough

Screw Diameter

(in)

Trough Thickness

(in)

A Inside

(in)

B Maximum

Width (in)

C Drop (in)

D Inside Radius

(in)

E Standard Length

(in)14

10123/16

103/161/4

103/161/4

103/161/4

3/161/4

3/161/4

3/161/4

39 1/2

45 1/2

21 1/2

26 1/2

28 1/2

32 1/2

36 1/2

144

144

144

144

144

120

12059

1446 1/210

31

34

40

7 3 1/2

11 7 1/2

11 1/2 8 1/2

12 1/8 9 1/2

13 1/2 10 1/2

16 1/2 12 1/2

16 5/814

18

22

24

28

20

24

6

9

12

14

16

18

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20

Trough Spout

6 16, 14 & 10 14 5 7 10 11/16 2 13/16 - 3 6 7 1/2 3/8 1214, 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

20

20

12

12

20

20

20

14 1/2

16 1/2

17 1/2

20

3/8

3/8

3/8

3/8

1/2

1/2

1/2

11 1/2

10 1/2

8 10

12 1/2

13 1/2

5 1/2 17 1/2

15 1/2

14 1/2

13 1/2

-

-

4 3/8

4 3/4

4

5 1/4

3 1/2

4

4 3/8

4 3/4

4 7/16

4 7/8

5 5/8

3 1/2

4

5 5/8

24 1/4

26 1/4

30 1/4

7/8

7/8

7/8

1 1/8

1 1/8

1 1/8

1/2 4

8 7/8

10 1/8

11 1/8

13

15

17

17 1/4

19 1/4

21 1/4

5 1/8

3 1/2

3 3/4

P (in)

R (Qty.)

F (in)

E (in)

G (in)

H (in)

J (in)

JF (in)

24

Thickness(in)

Conveyor Diameter

(in)

A (in)

B (in)

18

20

7 1/8 10

12 3/8

13 3/8

15 3/8

19

21

25

C (in)

9

12

14

16

13


Conveyor Discharge Spouts, Plain

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Hands Slides for Conveyor Discharge Spouts

Trough Spout

6 16, 14 & 10 14 5 6 5/8 3 3/4 10 3/8 2 14 1/8 12 GA 5/1614, 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

3/8

3/8

5/16

5/16

5/16

5/16

5/16

36 3/4

42 7/8

12 GA

10 GA

10 GA

10 GA

10 GA

3/16

3/16

18 3/4

24 1/2

27 5/8

30 3/4

33 3/4

25 9/16

29 5/8

2

2

2

2

2

2

2

13 3/8

17 5/16

19 7/16

21 9/16

23 9/16

16 3/8

5 3/8

7 3/16

8 3/16

9 3/16

10 3/16

11 3/16

13 1/4

10 1/8

11 1/4

12 3/8

13 3/8

14 3/820

24

D (in)

9

12

14

16

18

7 1/8

8 7/8

10 1/8

11 1/8

12 3/8

13 3/8

15 3/8

8

F (in)

G (in)

H (in)

Conveyor Diameter

(in)

Thickness(in)

A (in)

B (in)

C (in)

E (in)

CEMA Screw C

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19- N

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N


23


owner

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24

Bolt Stud

6 1 1/2 1 5/8 4 1/2 5 5/8 8 1/8 9 3/4 1 1/2 1 3/16 4 1/2 7/16 3/8 1 3/41 1/2 1 5/8 4 1/2 7/16

2 2 1/8 5 1/8 5/8 9/162 2 1/8 5 1/8

2 7/16 2 9/16 5 5/8

3 3 1/8 6 3/4 3/42 7/16 2 9/16 5 5/8 5/8 9/16

3 3 1/8 6 3/4 3/4

16 3 3 1/8 10 5/8 12 14 7/8 21 1/4 2 1/2 2 5/16 6 3/4 3/4 5/8 3 1/43 3 1/8 6

3 7/16 3 9/16 6 3/43 3 1/8 6

3 7/16 3 9/16 6 3/4

24 3 7/16 3 9/16 16 1/2 18 1/8 20 30 1/4 2 1/2 2 1/2 3/8 6 3/4 3/4 3/4 3/4 4 1/8

2 5/8

2 3/4

2 7/8

3 1/4

3 3/4

1/2

5/8

5/8

5/8

3/4

5/8

3/4

3/4 3/4

3/4

9/16

1/4

1/4

5/16

3/8

3/8

1 1/2

1 5/8

1 5/8

2

2 1/4

1 5/8

2

2

2 1/2

2 1/2

13 1/2

17 1/4

19 1/4

24 1/4

26 1/415

9 3/8

12 1/4

13 1/2

16

19 1/420

Shaft Diameter

(in)

D (in)

9

12

14

18

6 1/8

7 3/4

9 1/4

12 1/8

13 1/2

7 7/8

9 5/8

10 7/8

13 3/8

M (in)

Screw Diameter

(in)

K Diameter

(in)

A Minimum

(in)

B (in)

C (in)

E Minimum

(in)

F Minimum

(in)

G (in)

H (in)

J (in)

L (in)


U-Trough End Plates

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25


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26

Bolt Stud

6 1 1/2 1 5/8 7 5 5/8 8 1/8 9 3/4 1 1/2 1 3/16 4 1/2 7/16 3/8 1 3/4 16 5/81 1/2 1 5/8 4 1/2 7/16

2 2 1/8 5 1/8 5/8 9/162 2 1/8 5 1/8

2 7/16 2 9/16 5 5/8

3 3 1/8 6 3/4 3/42 7/16 2 9/16 5 5/8 5/8 9/16

3 3 1/8 6 3/4 3/4

16 3 3 1/8 11 1/2 12 14 7/8 21 1/4 2 1/2 2 5/16 6 3/4 3/4 5/8 3 1/4 32 1/23 3 1/8 6

3 7/16 3 9/16 6 3/43 3 1/8 6

3 7/16 3 9/16 6 3/4

24 3 7/16 3 9/16 16 1/2 18 1/8 20 30 1/4 2 1/2 2 1/2 3/8 6 3/4 3/4 3/4 3/4 4 1/8 45 1/2

21 1/4

26 3/8

28 3/8

36 1/2

39 1/2

2 5/8

2 3/4

2 7/8

3 1/4

3 3/4

1/2

5/8

5/8

5/8

3/4

5/8 9/16

3/4 3/4

3/4 3/4

1/4

1/4

5/16

3/8

3/82 1/4

2

1 5/8

1 5/8

1 1/21 5/8

2

2

2 1/2

2 1/219 1/4

13 1/2

17 1/4

19 1/4

24 1/4

26 1/4

7 7/8 9 3/8

12 1/4

13 1/2

16

10

11

12 1/8

13 1/2 15

13 3/8

10 7/8

9 5/8

20

14

18

N (in)

L (in)

M (in)

9

12

E Minimum

(in)

F Minimum

(in)

G (in)

H (in)

J (in)

K Diameter

(in)

Screw Diameter

(in)

9

Shaft Diameter

(in)

A Minimum

(in)

B (in)

C (in)

D (in)


Flared Trough End Plates

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27


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28


U-Trough Flange Bolt Hole Patterns

Diameter (in)

Holes (in)

6 3/8 6 4 1/2 4 7/16 1 1/32 4 1/8 4 1/16 2 1/32 - - -9 3/8 8 6 1/8 6 1/4 1 3/16 4 1/8 3 3/4 2 9/16 4 1/8 - -12 1/2 8 7 3/4 7 15/16 1 1/2 5 5/16 4 1/16 3 7/8 5 3/16 - -14 1/2 8 9 1/4 8 15/16 2 17/32 5 5/8 5 15/16 3 5 15/16 - -16 5/8 8 10 5/8 10 2 5/8 6 3/8 6 5/8 3 3/4 6 5/8 - -18 5/8 10 12 1/8 11 2 23/32 5 15/16 5 7/8 2 15/16 5 7/8 5 7/8 -20 5/8 10 13 1/2 12 3/16 2 25/32 6 1/4 6 11/16 3 11/32 6 11/16 6 11/16 -

24 5/8 12 16 1/2 14 1/4 2 25/32 6 1/8 6 5/8 3 5/16 6 5/8 6 5/8 6 5/8

K (in)

L (in)

C (in)

E (in)

F (in)

G (in)

J (in)

H (in)

Screw Diameter

(in)

BoltsB

(in)

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29


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30

Diameter (in)

Holes (in)

6 3/8 6 4 7/16 7 7 3/16 1 27/32 5 1/4 5 1/4 2 1/32 - - -9 3/8 8 6 1/4 9 9 21/32 1 43/64 5 5 2 9/16 5 - -12 1/2 8 7 15/16 10 11 13/16 1 13/16 5 3/4 5 3/4 3 7/8 5 3/4 - -14 1/2 10 8 15/16 11 12 49/64 2 1/16 5 1/8 5 1/8 3 5 1/8 5 1/8 -16 5/8 10 10 11 1/2 14 11/16 2 15/64 5 1/2 5 1/2 3 3/4 5 1/2 5 1/2 -18 5/8 10 11 12 1/8 16 2 5/8 6 3/16 6 3/16 2 15/16 6 3/16 6 3/16 -20 5/8 10 12 3/16 13 1/2 17 7/8 2 9/32 7 7 3 11/32 7 7 -

24 5/8 12 14 1/4 16 1/2 20 61/64 2 5/16 6 7/8 6 7/8 3 5/16 6 7/8 6 7/8 6 7/8

G (in)

H (in)

J (in)

K (in)

L (in)

A (in)

Screw Diameter

(in)

BoltsB

(in)C

(in)E

(in)F

(in)


Flared Trough Flange Bolt Hole Patterns

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31


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32


Drive Shafts

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

With Seal (in)

Without Seal (in)

With Seal (in)

Without Seal (in)

For Bab Bearing

(in)

For Ball Bearing

(in)1 1/2 14 1/4 12 1/2 13 1/4 11 1/2 7/8 3 17/32 1 1/4 1 3/4 3 1/4 3 1/4 2 1/4 7/8

2 16 1/2 14 3/4 14 7/8 13 1/8 7/8 3 21/32 1 1/4 1 3/4 4 1/2 4 1/4 2 5/8 7/82 7/16 19 1/8 17 3/8 16 7/8 15 1/8 15/16 3 21/32 1 13/16 1 3/4 5 1/2 5 3/16 2 15/16 15/16

3 20 7/8 19 1/8 18 3/8 16 5/8 1 3 25/32 1 7/8 1 3/4 6 6 1/4 3 3/4 1

3 7/16 25 7/8 23 5/8 22 7/8 20 5/8 1 1/4 4 29/32 2 3/8 2 1/4 7 1/4 7 1/4 4 1/4 1 1/2

A (in)

C (in)

E (in)

BFor Bab Bearing For Ball Bearing

D (in)

L M

(in)H

(in)F* (in)

G (in)

CEMA Screw C

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N


33


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34

With Seal (in)

Without Seal (in)

With Seal (in)

Without Seal (in)

For Bab Bearing

(in)

For Ball Bearing

(in)1 1/2 11 9 1/4 10 8 1/4 7/8 3 17/32 1 1/4 1 3/4 3 1/4 2 1/4 7/8

2 12 10 1/4 10 3/8 8 5/8 7/8 3 21/32 1 1/4 1 3/4 4 1/4 2 5/8 7/82 7/16 13 5/8 11 7/8 11 3/8 9 5/8 15/16 3 21/32 1 13/16 1 3/4 5 3/16 2 15/16 15/16

3 14 7/8 13 1/8 13 3/8 10 5/8 1 3 25/32 1 7/8 1 3/4 6 1/4 3 3/4 1

3 7/16 18 5/8 16 3/8 15 5/8 13 3/8 1 1/4 4 29/32 2 3/8 2 1/4 7 1/4 4 1/4 1 1/2

G (in)

L M

(in)

For Bab Bearing For Ball BearingA

(in)

B

C (in)

D (in)

E (in)

F* (in)


End Shafts

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

CEMA Screw C

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19- N

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N


35


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36

Sub-Standard 300-019A

2-Bolts Coupling Shafts

1 1/2 11 1/2 7/8 3 17/32 3 3/42 11 1/2 7/8 3 21/32 3 3/4

2 7/16 12 3/4 15/16 3 21/32 4 7/83 13 1 3 25/32 5

3 7/16 17 1/2 1 1/4 4 29/32 73 15/16 18 3/4 1 11/16 4 1 5/32 7 3/84 7/16 20 1/2 1 7/8 4 1 9/32 8 3/4

4 15/16 22 2 1/4 4 1 17/32 9 1/2

A (in)

B (in)

C (in)

D (in)

E (in)

F (in)

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37

NEW IMAGES – 300-019-A

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38

Sub-Standard 300-019B

3-Bolts Coupling Shafts

NEW IMAGES – 300-019-B

?????? ??????

1 1/2 17 1/2 7/8 3 17/32 3 3/42 17 1/2 7/8 3 21/32 3 3/4

2 7/16 18 3/4 15/16 3 21/32 4 7/83 19 1 3 25/32 5

3 7/16 25 1/2 1 1/4 4 29/32 73 15/16 26 3/4 1 11/16 4 1 5/32 7 3/84 7/16 28 1/2 1 7/8 4 1 9/32 8 3/4

4 15/16 30 2 1/4 4 1 17/32 9 1/2

F (in)

A (in)

B (in)

C (in)

E (in)

D (in)

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39


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.

Screw Diameter

(in)

Coupling Diameter

(in)

A (in)

B (in)

C (in)

D* (in)

E (in)

F** (in)

H (in)

T (in)

6 1 1/2 7 3/4 4 1/2 2 2 1/2 5 3/8 3/161 1/2

22 2

2 7/16 3

3 32 7/16

3

16 3 17 1 3/8 10 5/8 3 2 1/2 5 1/2 3/83 3

3 7/16 43 3

3 7/16 4

24 3 7/16 25 1 3/4 16 1/2 4 3 1/2 6 5/8 1/2

3/16

3/8

3/8

1/2

1/25/8

5/8

1/2

1/2

3/8

3 1/2

3 1/2

5

5

5

6

6

2

3

2 1/2

2 1/2

2 1/2

6 1/8

7 3/4

9 1/4

12 1/8

13 1/2

1

1 1/4

1 3/8

1 5/8

1 5/8

10

13

15

19

2120

12

14

9

18

CEMA Screw C

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40


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41

Type 216 – Hanger Bearing Dimensions and Tolerances

Note: Only critical dimensions are shown. All other dimensions are considered non-critical and based on each individual manufacturer’s standard.

Dimension “B” can vary from different manufacturers.

Size (in)

A (in)

B* (in)

C (in)

D (in)

E (in)

F (in)

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 7/16 2 15/16 2 3/8 1 5/8 to 17/16 2 7/16 2 1/8 9/16

3 2 15/16 2 3/8 2 1/16 to 2 7/16 3 2 1/4 9/16

3 7/16 3 15/16 3 1/8 2 9/16 to 3 1/4 3 7/16 2 7/16 11/16

TOLERANCE (in) + 0, -1/16 +/- 1/16 +0, -1/16 +1/32, -0 +/- 1/16 +/- 1/32

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42

NEW IMAGES – Type 216

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43

Screw Diameter

(in)

Coupling Diameter

(in)

A (in)

B (in)

C (in)

D (in)

E (in)

F (in)

H (in)

T (in)

6 1 1/2 7 3/4 4 1/2 2 2 1/2 5 3/8 3/161 1/2

22 2

2 7/16 3

3 3

2 7/163

16 3 17 1 3/8 10 5/8 3 2 1/2 5 1/2 3/83 3

3 7/16 43 3

3 7/16 4

24 3 7/16 25 1 3/4 16 1/2 4 3 1/2 6 5/8 1/2

3/8

3/16

5/8

5/8 1/2

1/2

3/8

5

5 3/8

1/2

1/2

3 1/2

3 1/2 6

6

5

2

3

2 1/2

2 1/2

2 1/2

6 1/8

7 3/4

9 1/4

12 1/8

13 1/21 5/8

1 5/8

1 3/8

1 1/4

110

13

15

19

21

9

12

14

18

20


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.

CEMA Screw C

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44


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45

Type 226 – Hanger Bearing Dimensions and Tolerances

Note: Only critical dimensions are shown. All other dimensions are considered non-critical and based on each individual manufacturer’s standard.

Size (in)

A (in)

B (in)

C (in)

D (in)

1 1 7/16 1 1/8 1 1/2 1

1 1/2 1 15/16 1 9/16 2 1/8 1 1/22 1 15/16 1 9/16 2 3/4 2

2 7/16 2 15/16 2 3/8 3 1/4 2 7/163 2 15/16 2 3/8 4 3

3 7/16 3 15/16 3 1/8 4 3/4 3 7/16TOLERANCE (in) + 0, -1/16 +/- 1/16 +/- 1/16 +1/32, -0

CEMA Screw C

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46

NEW IMAGES – Type 226

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47


Coupling Bolts with nuts

Shoulder Length Tolerance = + 1/8 in / - 0 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. Warning: Over tightening the nut could exceed the tensile stress of the bolt.

Coupling Diameter

(in)

Pipe Size (in)

Pipe O.D. (in)

A (in)

B (in)

C (in)

D (in)

1 1/2 2 2 3/8 1/2 3 5/8 2 3/82 2 1/2 2 7/8 5/8 3 5/8 3/4 2 7/8

2 7/16 3 3 1/2 5/8 4 3/8 7/8 3 1/23 3 1/2 4 3/4 5 1 43 4 4 1/2 3/4 5 1/2 1 4 1/2

3 7/16 4 4 1/2 7/8 5 1/2 1 4 1/2

CEMA Screw C

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N


48



owner

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49


U-Trough Flanged Covers

Conveyor Diameter

(in)

Minimum Cover

Thickness (in)

A Minimum

(in)

B Minimum

(in)

C (in)

D Standard Length

(in)6 16 9 7/8 1/2 1 1/2 1209 16 13 1/2 1/2 1 5/8 12012 14 17 1/2 1/2 2 14414 14 19 1/2 1/2 2 14416 14 21 1/2 1/2 2 1/2 14418 14 24 1/2 1/2 2 1/2 14420 14 26 1/2 1/2 2 1/2 14424 12 30 1/2 1/2 2 1/2 144

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50


U-Trough Semi - Flanged Covers

Conveyor Diameter

(in)

Minimum Cover

Thickness (in)

A Minimum

(in)

B Minimum

(in)

C (in)

D Minimun

(in)

E (in)

F (in)

G Standard Length

(in)

6 16 9 11/16 10 7/8 3/16 1/4 60 1 1/2 1209 16 13 3/8 14 5/8 3/16 1/4 60 1 5/8 12012 14 17 1/2 18 3/8 3/16 5/16 60 2 14414 14 19 1/2 20 3/8 3/16 5/16 60 2 14416 14 21 1/2 22 3/8 3/16 5/16 60 2 1/2 14418 14 24 1/2 25 3/8 3/16 5/16 60 2 1/2 14420 14 26 1/2 27 1/2 3/16 5/16 60 2 1/2 14424 12 30 1/2 31 3/8 3/16 5/16 60 2 1/2 144

CEMA Screw C

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N


51



owner

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52


U-Trough Flat Covers

Conveyor Diameter

(in)

Minimum Cover

Thickness (in)

A (in)

B (in)

C Standard Length

(in)

6 16 9 11/16 1 1/2 1209 14 13 3/8 1 5/8 12012 14 17 1/2 2 14414 14 19 1/2 2 14416 14 21 1/2 2 1/2 14418 12 24 1/2 2 1/2 14420 12 26 1/2 2 1/2 14424 12 30 1/2 2 1/2 144

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53


Double Flanged U-Troughs

Screw Diameter

(in)

Material Gauge

(in)

Part Number

A Inside

(in)

C drop (in)

D Standard Length

(in)

L Maximum

Width (in)

16 6DF16C 7 4 1/2 120 9 11/1614 6DF14C 7 4 1/2 120 9 11/1610 6DF10C 7 4 1/2 120 9 11/16

14 9DF14C 10 6 1/8 120 13 3/812 9DF12C 10 6 1/8 120 13 3/810 9DF10C 10 6 1/8 120 13 3/8

12 12DF12C 13 7 3/4 144 17 1/210 12DF10C 13 7 3/4 144 17 1/2

12 14DF12C 15 9 1/4 144 19 1/210 14DF10C 15 9 1/4 144 19 1/2

12 16DF12C 17 10 5/8 144 21 1/210 16DF10C 17 10 5/8 144 21 1/2

18 10 18DF10C 19 12 1/8 144 24 1/2

20 10 20DF10C 21 13 1/2 144 26 1/2

24 10 24DF10C 25 16 1/2 144 30 1/2

6

9

12

14

16

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55


Type 270 – Ball Bearing Hangers



Screw Diameter

(in)

Coupling Diameter

(in)

A (in)

B (in)

C (in)

D* (in)

E (in)

F** (in)

H (in)

T (in)

6 1 1/2 7 3/4 4 1/2 2 2 1/2 5 3/8 3/161 1/2

22 2

2 7/16 3

3 32 7/16 3

3 3

16 3 17 1 3/8 10 5/8 3 2 1/2 5 1/2 3/83 3

3 7/16 43 3

3 7/16 4

24 3 7/16 25 1 3/4 16 1/2 4 3 1/2 6 5/8 1/2

3/16

5/8 1/2

1/2

3/8

3/8

5 3/8

1/2

1/2

5/8

3 1/2 6

6

5

5

2 2 1/2

2 1/2

2 1/2

3 1/2

6 1/8

7 3/4

9 1/4

12 1/8

13 1/21 5/8

1 5/8

1 3/8

1 1/4

110

13

15

19

21

9

12

14

18

20

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56


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.

Screw Diameter

(in)

Coupling Diameter

(in)

A (in)

B (in)

C (in)

D* (in)

E (in)

F** (in)

H (in)

T (in)

6 1 1/2 7 3/4 4 1/2 2 2 1/2 6 3/8 3/161 1/2

22 2

2 7/16 3

3 32 7/16

3

16 3 17 1 3/8 10 5/8 3 2 1/2 8 1/2 3/83 3

3 7/16 43 3

3 7/16 4

24 3 7/16 25 1 3/4 16 1/2 4 3 1/2 8 5/8 1/2

3/8

3/16

5/8

5/8 1/2

1/2

3/8

6 1/2

6 3/8

1/2

1/2

3 1/2

3 1/2 8

8

6 1/2

2

3

2 1/2

2 1/2

2 1/2

6 1/8

7 3/4

9 1/4

12 1/8

13 1/2

1

1 1/4

1 3/8

1 5/8

1 5/8

10

13

15

19

21

9

12

14

18

20

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58


Type 316 – Hangers



Screw Diameter

(in)

Coupling Diameter

(in)

A (in)

B (in)

C (in)

D* (in)

E (in)

F** (in)

H (in)

T (in)

6 1 1/2 7 3/4 4 1/2 2 2 1/2 6 3/8 3/161 1/2

22 2

2 7/16 3

3 32 7/16

3

16 3 17 1 3/8 10 5/8 3 2 1/2 8 1/2 3/83 3

3 7/16 43 3

3 7/16 4

24 3 7/16 25 1 3/4 16 1/2 4 3 1/2 8 5/8 1/2

5/8 1/2

21 1 5/8 13 1/2 3 1/2 8 5/8 1/2

19 1 5/8 12 1/8 3 1/2 8

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

2 2 1/2 6 3/8 3/1610

13

1

1 1/4

6 1/8

7 3/4

9

12

14

18

20

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59


Packing Seal Housing

Shaft Diameter

(in)

A Maximum

(in)

B (in)

C Minimum

(in)

D (in)

E (in)

1 1/2 5 3/8 4 1 5/8 1/2 1 3/42 6 1/2 5 1/8 2 1/8 5/8 1 3/4

2 7/16 7 3/8 5 5/8 2 9/16 5/8 1 3/43 7 7/8 6 3 1/8 3/4 1 3/4

3 7/16 9 1/4 6 3/4 3 9/16 3/4 2 1/4

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Shrouds

Note: Material thickness, bolt hole size and bolt hole location vary among manufacturers.

Screw Diameter

(in)

A (in)

B (in)

F (in)

L (in)

U (in)

6 7 14 7 12 4 1/29 10 18 9 18 6 1/812 13 22 10 24 7 3/414 15 24 11 28 9 1/416 17 28 11 1/2 32 10 5/818 19 31 12 1/8 36 12 1/820 21 34 13 1/2 40 13 1/2

24 25 40 16 1/2 48 16 1/2

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63


Conveyor Inlet Spout, Flanged

Trough (in)

Inlet Minimum (in)

6 16, 14 & 10 16 8 5/8 79 14, 12, 10 & 3/16 14 12 1012 12, 10, 3/16 & 1/4 12 15 1/2 1314 12, 10, 3/16 & 1/4 12 17 1/2 1516 12, 10, 3/16 & 1/4 12 19 1/2 1718 10, 3/16 & 1/4 12 22 1920 10, 3/16 & 1/4 12 24 21

24 10, 3/16 & 1/4 12 28 25

ThicknessConveyor Diameter

(in)

A (in)

B (in)

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64


Conveyor Discharge Spouts (Three sided – Fourth side formed by trough end)

Notes: 1. “C” dimension based upon the drop for a plain discharge spout – See sub-standard 300-

011. 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.

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Trough

(in)

P

(in)

6 16, 14 & 10 14 9 1/2 4 1/2 5 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 14 6 1214, 12 & 10 14 14

3/16 10 1012 & 10 12 12

3/16 & 1/4 3/16 3/1612 & 10 12 12

3/16 & 1/4 3/16 3/1612 & 10 12 12

3/16 & 1/4 3/16 3/1610 12 12

3/16 & 1/4 3/16 3/1610 12 12

3/16 & 1/4 3/16 3/1610 12 12

3/16 & 1/4 3/16 3/16

20

20

12

12

20

20

209/16

9/16

9/16

8

8

8

8

10

10

12

11/16

9/16

9/16

7/16 7/16

7/16

7/16

7/16

3/8

3/8 11/16

11/16

11/16

1/4

1/4

5/16

5/16

3/8

21

25

13

17 1/4

19 1/4

21 1/4

24 1/4

26 1/4

30 1/4

10

13

15

17

19

26 1/4

30 1/4

1 5/8

2

2

2 1/2

2 1/2

2 1/2

2 1/2

13 1/2

17 1/4

19 1/4

21 1/4

24 1/4

5 5/16

5 1/4

6 1/4

7 15/16

8 15/16

10

11

12 3/16

14 1/4

3 5/8

4 5/8

4 3/4

5 1/2

4 13/16

2 25/32

2 25/32

3

3

3

3

4

4

5

1 3/16

1 1/2

2 17/32

2 5/8

2 23/32

13 3/8

15 3/8

1 3/16

1 1/4

2 19/32

2 5/8

2 17/32

2 27/32

2 27/32

7 1/8

8 7/8

10 1/8

11 1/8

12 3/8

26 7/8

31 7/8

6 1/8

7 3/4

9 1/4

10 5/8

12 1/8

13 1/2

16 1/2

13 1/4

16 5/8

19 3/8

21 3/4

24 1/2

D(in)

Conveyor Diameter

(in)

ThicknessA

(in)B

(in)C

(in)F

(in)G

(in)H

(in)J

(in)K

(in)

18

20

24

T (Qty.)

V (Qty.)

9

12

14

16

L (in)

M (in)

N (in)

O (in)

R (in)

S (Thick)

E(in)


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66


Shaftless Conveyor Screws

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.

Plus (in)

Minus (in)

Plus (in)

Minus (in)

10 Single -- Double 1/2







1/2

1/2

1/2

1/2

1/2

1/2

3/4

1

1

1

1

1

1

1/2

1/2

1/2

1/2

1/2

0

0

1/4

3/8

3/8

1/2

1/2

3/4

3/4

18

20

24

9

12

14

16

18

20

24

16

0

0

0

0

0

D Min. Bar

Thickness (Outer)

(in)

E Min. Bar

Thickness (Inner)

(in)

9

12

14

Nominal Screw

Diameter (in)

A Trough

I.D. (in)

Spiral Type

B Diameter Tolerance

Nominal Pitch (in)

C Pitch Tolerance

1/2

1/2

1/2

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Documents

Screw Conveyor Dimensional - NOT FOR DISTRIBUTION Standards · 2019-06-21 · - NOT FOR DISTRIBUTION CEMA Standard 300 ‐ 2019 – Screw Conveyor – Dimensional Standards III FOREWORD