COVID-19 Update - Clutch Engineering is open to support you.

Phone: 1-800-569-1291   Fax: 1-860-693-2197


SSB 108

Wichita Spring-Set Air Release Brakes are ideal for fail safe protection of process equipment. Constructed of high strength cast iron, this improved design has thick friction discs for longer wear life. The fast acting airtube design assures quick, smooth stops.


Assembly Number


Dynamic Torque Rating (60 psi/4.1 bar)

3700 lb•in
418 Nm

Dynamic Torque Rating (75 psi/5.2 bar)

4800 lb•in
542 Nm

Dynamic Torque Rating (90 psi/6.2 bar)

6200 lb•in
700 Nm

Maximum Bore Size

2.25 in
57 mm

Maximum Speed (Standard Airtube)

2870 rpm

Maximum Speed (High Speed Airtube)1

4300 rpm

Total Brake (Weight)

62 lb
28 kg

Disc & Gear (Weight)

11 lb
5 kg

Disc & Gear (Inertia)

0.54 lb•ft2
0.023 kg•m2


Wichita Clutch


Air Applied


1Consult Factory for Special Assembly Number.