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SSB 211

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)

15600 lb•in
1763 Nm

Dynamic Torque Rating (75 psi/5.2 bar)

20000 lb•in
2260 Nm

Dynamic Torque Rating (90 psi/6.2 bar)

22200 lb•in
2508 Nm

Maximum Bore Size

2.50 in
64 mm

Maximum Speed (Standard Airtube)

2090 rpm

Maximum Speed (High Speed Airtube)1

3125 rpm

Total Brake (Weight)

166 lb
75 kg

Disc & Gear (Weight)

45 lb
20.4 kg

Disc & Gear (Inertia)

4.50 lb•ft2
0.19 kg•m2


Wichita Clutch


Air Applied


1Consult Factory for Special Assembly Number.