Shaft 

Diameter

Part 

Number

A

Base to 

Centerline Height

B

Distance 

Between 

Bolt Holes

C

D

E

F

Bolts

H

L

M

S

U

Approx. 

Weight

1 3/16

PLY319N

1 7/8

5 3/8

6 13/16

2 1/32

1 15/16

1/2

7/8

3 11/16

1 15/16

3/4

1 1/4

4.60

1 7/16

PLY323N

2 1/8

6

7 9/16

2 5/32

2 1/8

1/2

15/16

4 3/32

2 3/16

3/4

1 5/16

5.90

1 11/16

PLY327N

2 5/8

7 1/2

9 7/16

2 9/16

2 5/8

5/8

1 3/16

5 1/8

2 3/4

1

1 33/64

11.30

1 15/16

PLY331N

2 13/16

8 1/4

10 7/16

2 25/32

2 7/8

5/8

1 5/16

5 9/16

3

1

1 41/64

15.00

2 3/16

PLY335N

3 1/16

9

11 5/16

2 15/16

3 1/8

3/4

1 7/16

6 1/32

3 1/4

1 1/8

1 23/32

18.50

2 7/16

PLY339N

3 5/16

9 3/4

12 5/16

3 5/32

3 5/16

3/4

1 1/2

6 17/32

3 1/2

1 1/8

1 25/32

23.20

2 11/16

PLY343N

3 13/16

11 1/4

14 3/16

3 9/16

3 13/16

7/8

1 3/4

7 9/16

4

1 5/16

2

36.10

2 15/16

PLY347N

4 1/8

12

15 1/8

3 15/16

4 1/16

7/8

1 7/8

8 1/8

4 7/16

1 5/16

2 7/32

43.40