Marine Propeller hub and shaft dimensions

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Dimensions shown are for shafts from 3/4" to 3" in diameter

Propeller Hub

Keyway Size

Shaft

Bore

Small End

Length

Size

Width

Fillet Radius

Thread

Cotter Pin

3/4

0.610

2-1/4

3/16

3/32

1/32

1/2 x 13

1/8 x 3/4

7/8

0.712

2-5/8

1/4

1/8

1/32

5/8 x 11

1/8 x 3/4

0.813

1/4

1/8

1/32

3/4 x 10

1/8 x 1

1-1/8

0.915

3-3/8

1/4

1/8

1/32

1-1/4

1.017

3-3/4

5/16

5/32

1/16

3/4 x 10

1/8 x 1

1-3/8

1.118

4-1/8

5/16

5/32

1/16

7/8 x 9

5/32 x 1-1/4

1-1/2

1.220

4-1/2

3/8

3/16

1/16

1 x 8

5/32 x 1-1/2

1-1/8 x 7

5/32 x 1-1/2

1-3/4

1.423

5-1/4

7/16

7/32

1/16

1-1/4 x 7

3/16 x 1-3/4

1.626

1/2

1/4

1/16

1-1/2 x 6

3/16 x 2

2-1/4

1.829

6-3/4

9/16

9/32

3/32

2-1/2

2.032

7-1/2

5/8

5/16

3/32

1-3/4 x 5

1/4 x 2-1/4

2-3/4

2.235

8-1/4

5/8

5/16

3/32

1-3/4 x 5

1/4 x 2-1/4

2.439

3/4

5/16

3/32

2 x 4-1/2

1/4 x 2-1/2

2-1/4 x 4-1/2

1/4 x 3

Dimensions shown are for sleeve shafts from 3-1/4" to 8" in diameter.

Propeller Hub

Keyway Size

Shaft

Bore

Small End

Length

Size

Width

Fillet Radius

Thread

Cotter Pin

3-1/4

2.642

9-3/4

3/4

5/16

1/8

2-1/2_4

3/8 x 3

3-1/2

2.845

10-1/2

7/8

5/16

1/8

2-1/2_4

3/8 x 3

3-3/4

3.048

11-1/4

7/8

5/16

1/8

2-2/3_4

3/8 x 3-1/2

3.251

5/16

1/8

3 _4

3/8 x 3-1/2

4-1/2

3.798

11-1/4

1-1/8

3/8

5/32

4.220

12-1/2

1-1/4

7/16

3/16

3-1/4_4

3-3/4_4

5-1/2

4.642

13-3/4

1-1/4

7/16

3/16

4 _4

4.751

1-3/8

1/2

7/32

4-1/4_4

6-1/2

5.147

16-1/4

1-3/8

1/2

7/32

5.543

17-1/2

1-1/2

9/16

1/4

4-1/2_4

7-1/2

5.939

18-3/4

1-1/2

9/16

1/4

5 _4

6.334

1-3/4

9/16

1/4

5-1/2_4

5-3/4_4