Products Catalog
The Wichita Air-Tube Disc Brakes combines all the best features of the disc type clutch with all the advantages of direct air engagement. The simplest and most trouble-free method of applying air pressure is through direct axial pressure application by compressed air in a special composition full-circle tube.
Unit of Measure


Assembly Number

N/A 7-018-300-103-0

Dynamic Torque Rating (80 psi/5.5 bar)

N/A 154840 lb·in17115 Nm

Dynamic Torque Rating (100 psi/7 bar)

N/A 193550 lb·in21780 Nm

Maximum Bore Size

N/A 4.75 in121 mm

Maximum Air Pressure

N/A 130 psi9 bar

Maximum RPM (Standard Airtube)

N/A 1270 rpm

Maximum RPM (High Speed Airtube)

N/A 1910 rpm

Total Brake (Weight)

N/A 461 lb209 kg

Weight (Hub & Center Plate)

N/A 180 lb81.6 kg

WR2/J=mr2 (Hub & Center Plate)

N/A 43.2 lb·ft²1.821 kg·m²

Dimension A

N/A 23.25 in590.6 mm

Bolt Hole Diameter B

N/A 22.000 in558.80 mm

Dimension C

N/A 18.250/18.253 in463.55/463.63 mm

Dimension D

N/A 22.00 in558.8 mm

Dimension F

N/A 6.50 in165.1 mm

Dimension G

N/A 0.44 in11.2 mm

Dimension H

N/A 10.63 in270.0 mm

Dimension J

N/A 0.38 in9.7 mm

Number of Mounting Holes (L)

N/A 12

Dimension L

N/A 21/32 in16.7 mm

Dimension M

N/A 12.50 in317.5 mm

Dimension N

N/A 7.00 in177.8 mm

Dimension Q

N/A 0.63 in16.0 mm

Dimension R (Number - Size)

N/A 3 - 1/2 NPT

Dimension T

N/A 7.75 in

Minimum U

N/A 2.00 in50.8 mm

Maximum U

N/A 4.75 in120.7 mm


N/A Wichita Clutch


N/A Air Applied


N/A Consult Factory for Special Assembly Number.
For mounting, use socket head capscrews conforming to the ASTM-574-97a.
(Consult factory for drawing before final layout.)