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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.
Unit of Measure

Specifications

Size

 N/A 8CB250

Torque Rating (75 psi/5.5 bar)

 N/A 4290 lb·in485 Nm
Available for Shaft Diameter1 N/A 1.250 thru 2.000 in1.250 thru 2.000 mm

Dimension D

 N/A 11.25 in286 mm

Dimension D1

 N/A 2.69 in68 mm

Dimension D2

 N/A 7.19 in183 mm

Dimension D30

 N/A 3.25 in83 mm

Dimension D33

 N/A 0.54 in14 mm

Dimension D37

 N/A 6.48 in165 mm

Dimension D47

 N/A 2.50 in64 mm

Dimension H

 N/A 12.88 in327 mm
Dimension J2 N/A 4.252 in108.0 mm

Dimension M

 N/A 1.38 in35 mm

Weight

 N/A 51 lb23 kg
Wk2 Element & Spider J3 N/A 4.1 lb·ft²0.17

Drum

 N/A 1.0 0.04 kg·m²

Shaft Diameter

 N/A 1.375 in2.000 in

Maximum Speed

 N/A 1200 rpm1700 rpm

Manufacturer

 N/A Eaton-Airflex

Actuation

 N/A Air Applied

Note

N/A 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 - 70x135
All other diameters - 70x45

  • 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.