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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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

Specifications

Assembly Number

 7-031-300-304-0

Dynamic Torque Rating (80 psi/5.5 bar)

 784800 lb·in88890 Nm

Dynamic Torque Rating (100 psi/7 bar)

 981000 lb·in113130 Nm

Maximum Bore Size

 7.25 in184 mm

Maximum Air Pressure

 130 psi9 bar

Maximum RPM (Standard Airtube)

 765 rpm

Maximum RPM (High Speed Airtube)

 1130 rpm

Total Brake (Weight)

 1751 lb794 kg

Weight (Hub & Center Plate)

 810 lb367.4 kg

WR2/J=mr2 (Hub & Center Plate)

 477 lb·ft²20.1 kg·m²

Dimension A

 37.00 in939.8 mm

Bolt Hole Diameter B

 35.500 in901.70 mm

Dimension C

 30.378/30.375 in771.60/771.53 mm

Dimension D

 34.75 in882.7 mm

Dimension F

 11.88 in301.8 mm

Dimension G

 0.63 in16.0 mm

Dimension H

 15.31 in388.9 mm

Dimension J

 0.25 in6.4 mm

Number of Mounting Holes (L)

 18

Dimension L

 25/32 in19.8 mm

Dimension M

 19.25 in489 mm

Dimension N

 10.00 in254 mm

Dimension Q

 0.75 in19.1 mm

Dimension R (Number - Size)

 4 - 1/2 NPT

Dimension T

 15.00 in

Minimum U

 2.50 in63.5 mm

Maximum U

 7.25 in184.2 mm

Manufacturer

 Wichita Clutch

Actuation

 Air Applied

Note

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.)