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105783

Section B
Form PCB-203
The type CB element assembly is designed and built to provide dependable clutch or brake service in the most exacting industrial applications. It is suited to high speed, cyclic operations, as well as for coupling and general power transmission.

Specifications

Size

8CB250

Torque Rating (75 psi/5.5 bar)

4290 lb·in
485 Nm

Available for Shaft Diameter

1.250 thru 2.000 in
1.250 thru 2.000 mm

Dimension D

11.25 in
286 mm

Dimension D1

2.69 in
68 mm

Dimension D2

7.19 in
183 mm

Dimension D30

3.25 in
83 mm

Dimension D33

0.54 in
14 mm

Dimension D37

6.48 in
165 mm

Dimension D47

2.50 in
64 mm

Dimension H

12.88 in
327 mm

Dimension J

4.252 in
108.0 mm

Dimension M

1.38 in
35 mm

Weight

51 lb
23 kg

Wk2 Element & Spider J

4.1 lb·ft²
0.17

Drum

1.0
0.04 kg·m²

Shaft Diameter

1.375|2.000 in

Maximum Speed

1700|1200 rpm

Manufacturer

Eaton-Airflex

Actuation

Air Applied

Notes

Refers to basic part number only and does not include the rotorseal and hose. When ordering, specify shaft diameter.
Refer to Rotorseal Section for mounting and dimension information.
Part numbers for shaft diameters:
1.250 thru 1.500 in – 70×135
All other diameters – 70×45

1 Available only for inch series shafting in 0.125 increments. Use standard square keys.
2 Tolerance +/-0.0005 in (+/-0.01 mm)
3 Based upon minimum bores.