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 7-025-100-101-0

Dynamic Torque Rating (80 psi/5.5 bar)

N/A 122960 lb·in13575 Nm

Dynamic Torque Rating (100 psi/7 bar)

N/A 153700 lb·in17275 Nm

Maximum Bore Size

N/A 6.00 in152 mm

Maximum Air Pressure

N/A 130 psi9 bar

Maximum RPM (Standard Airtube)

N/A 950 rpm

Maximum RPM (High Speed Airtube)

N/A 1410 rpm

Total Brake (Weight)

N/A 618 lb280 kg

Weight (Hub & Center Plate)

N/A 132 lb60.0 kg

WR2/J=mr2 (Hub & Center Plate)

N/A 56 lb·ft²2.4 kg·m²

Dimension A

N/A 30.00 in762 mm

Bolt Hole Diameter B

N/A 28.750 in730.25 mm

Dimension C

N/A 24.375/24.378 in619.13/619.20 mm

Dimension D

N/A 29.00 in736.6 mm

Dimension F

N/A 4.00 in101.6 mm

Dimension G

N/A 0.69 in17.5 mm

Dimension H

N/A 7.63 in193.8 mm

Dimension J

N/A 0.25 in6.4 mm

Number of Mounting Holes (L)

N/A 12

Dimension L

N/A 21/32 in16.7 mm

Dimension M

N/A 14.50 in368.3 mm

Dimension N

N/A 9.00 in228.6 mm

Dimension Q

N/A 0.75 in19.1 mm

Dimension R (Number - Size)

N/A 3 - 1/2 NPT

Dimension T

N/A 13.25 in

Minimum U

N/A 2.00 in50.8 mm

Maximum U

N/A 6.00 in152.4 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.)