Shaft 

Diameter

Part Number

E

Base to 

Centerline 

Height

K

Thread 

Size

A

B

C

D

F

G

H

M

N

Approx. 

Weight

1 1/2

HM3U224N*Δ■

2 1/2

3/4-10 NC

3 7/8

5.19

0.218

1 29/32

1 3/4

0.7340

0.97

1.00

2.083

5.00

2

HM3U2E32N*Δ■

2 1/2

3/4-10 NC

4 3/8

5.44

0.170

2 3/32

1 3/4

0.8280

0.91

1.00

2.475

6.30

2 7/16

HM3U239N*Δ■

3 5/8

7/8-9 NC

5 1/4

7.00

0.310

2 1/2

2 1/2

0.9380

1.75

1.06

3.012

11.30

3

HM3U2E48N*Δ

3 5/8

7/8-9 NC

6 1/8

7.44

0.375

2 7/8

2 1/2

1.0620

2.00

1.06

3.624

12.90

3 7/16

HM3U255N*Δ

4 1/2

1 1/8-12 NF

7 1/2

9.25

0.344

3 9/16

3 9/16

1.4380

2.56

1.88

4.158

24.80