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ASA 40 Type B S

A.S.A. 40

Bored-To-Size

1/2" Pitch Single

Catalog

Number

Number

of Teeth

Teeth

O.D.

Weight

in Lbs.

Available Bores

Includes Keyway & Setcsrew

Hard Teeth

40BS009

40BS009H

9

1.67

.18

1/2

5/8

40BS010

40BS010H

10

1.84

.20

1/2

5/8

3/4

40BS011

40BS011H

11

2.00

.25

1/2

5/8

3/4

7/8

40BS012

40BS012H

12

217

.40

1/2

5/8

3/4

7/8

1

40BS013

40BS013H

13

2.33

.43

1/2

5/8

3/4

7/8

1

40BS014

40BS014H

14

2.49

.56

1/2

5/8

3/4

7/8

1

40BS015

40BS015H

15

2.65

.60

1/2

5/8

3/4

7/8

1

1-1/8

1-3/16*

1-1/4*

40BS016

40BS016H

16

2.81

.68

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

40BS017

40BS017H

17

2.98

1.00

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

40BS018

40BS018H

18

3.14

1.06

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16*

1-1/2*

40BS019

40BS019H

19

3.30

1.30

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS020

40BS020H

20

3.46

1.56

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS021

40BS021H

21

3.62

1.68

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS022

40BS022H

22

3.78

1.81

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS023

40BS023H

23

3.94

2.18

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS024

40BS024H

24

4.10

2.20

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS025

40BS025H

25

4.26

2.37

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS026

40BS026H

26

4.42

2.40

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS028

40BS028H

28

5.06

2.50

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS030

40BS030H

30

5.16

2.87

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS032

32

5.38

3.00

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS035

35

5.86

3.50

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS036

36

6.02

3.60

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS040

40

6.65

4.00

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS045

45

7.45

4.50

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

40BS060

60

9.84

7.20

5/8

3/4

7/8

1

1-1/8

1-3/16

1-1/4

1-7/16

1-1/2

* Setscrew at 90 degrees to keyway.

Hub diameters vary to suit bore sizes.

Weights are only approximate.

Tooth dimensions available on 40 Teeth page.

See our Oil Field Sprocket Photos Page:

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