The Rowland Company
The Rowland Company
4900 North 20th St.
Philadelphia, PA 19144
Toll Free: (800) 925-8824
Phone: (215) 455-4900
Fax: (215) 455-8888
Email: rowland@rowland2.com
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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.
Wichita-SSB Brake.jpg
Unit of Measure
Items Image
SSB 104H
Low Inertia Spring Set Brakes 		Image
SSB 106
Low Inertia Spring Set Brakes 		Image
SSB 206
Low Inertia Spring Set Brakes 		Image
SSB 306
Low Inertia Spring Set Brakes 		Image
SSB 108
Low Inertia Spring Set Brakes
Assembly Number N/A 71104-730 N/A 7-106-100-200-0 N/A 7-106-200-200-0 N/A 7-106-300-100-0 N/A 7-108-100-123-0
Dynamic Torque Rating (60 psi/4.1 bar) N/A 451 lb·in51 Nm N/A 2225 lb·in251 Nm N/A 4300 lb·in486 Nm N/A 5750 lb·in650 Nm N/A 3700 lb·in418 Nm
Dynamic Torque Rating (75 psi/5.2 bar) N/A N/A 2900 lb·in328 Nm N/A 5600 lb·in633 Nm N/A 7400 lb·in836 Nm N/A 4800 lb·in542 Nm
Dynamic Torque Rating (90 psi/6.2 bar) N/A N/A 3700 lb·in418 Nm N/A 7200 lb·in813 Nm N/A 9050 lb·in1022 Nm N/A 6200 lb·in700 Nm
Maximum Bore Size N/A 1.00 in25 mm N/A 2.00 in50 mm N/A 2.00 in50 mm N/A 2.00 in50 mm N/A 2.25 in57 mm
Recommended Clearance N/A 1/32-1/16 in N/A 1/16-3/32 in N/A 3/32-1/8 in N/A 3/32-1/8 in N/A 1/16-1/8 in
Hub & C.P. (Balance Speed) N/A 3325 rpm N/A 2225 rpm N/A 2225 rpm N/A 2225 rpm N/A 1675 rpm
Maximum Speed (Standard Airtube) N/A 5250 rpm N/A 3800 rpm N/A 3800 rpm N/A 3800 rpm N/A 2870 rpm
Maximum Speed (High Speed Airtube)1 N/A 5250 rpm N/A 5700 rpm N/A 5700 rpm N/A 5700 rpm N/A 4300 rpm
Swept Area N/A 17 in² N/A 39 in² N/A 78 in² N/A 117 in² N/A 56 in²
New Air Tube Volume N/A 0.9 in³ N/A 1.8 in³30 cm³ N/A 1.8 in³30 cm³ N/A 1.8 in³30 cm³ N/A 3.4 in³56 cm³
Worn Air Tube Volume N/A 3.4 in³ N/A 11.9 in³195 cm³ N/A 11.9 in³195 cm³ N/A 11.9 in³195 cm³ N/A 18.3 in³300 cm³
Total Brake (Weight) N/A 11.0 lb7 kg N/A 27.5 lb40.5 lb12 kg18 kg N/A 27.5 lb40.5 lb12 kg18 kg N/A 27.5 lb40.5 lb12 kg18 kg N/A 62 lb28 kg
Disc & Gear (Weight) N/A 1.54 lb0.7 kg N/A 12.17 lb6.40 lb2.9 kg5.5 kg N/A 12.17 lb6.40 lb2.9 kg5.5 kg N/A 12.17 lb6.40 lb2.9 kg5.5 kg N/A 11 lb5 kg
Disc & Gear (Inertia) N/A 0.021 lb·ft²0.001 kg·m² N/A 0.24 lb·ft²0.46 lb·ft²0.01 kg·m²0.019 kg·m² N/A 0.24 lb·ft²0.46 lb·ft²0.01 kg·m²0.019 kg·m² N/A 0.24 lb·ft²0.46 lb·ft²0.01 kg·m²0.019 kg·m² N/A 0.54 lb·ft²0.023 kg·m²
Note N/A Not the standard 60 psi release pressure.
Consult Factory for Special Assembly Number. 		N/A Consult Factory for Special Assembly Number. N/A Consult Factory for Special Assembly Number. N/A Not the standard 60 psi release pressure. N/A Consult Factory for Special Assembly Number.
Manufacturer N/A Wichita Clutch
Actuation N/A Air Applied
  • 1 Consult Factory for Special Assembly Number.