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LIB 121

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.

Specifications

Assembly Number

7-021-100-100-0

Size

8 to 36

Drawing Number

D-373

Dynamic Torque Rating (80 psi/5.5 bar)

69887 lb·in
7755 Nm

Dynamic Torque Rating (100 psi/7 bar)

87359 lb·in
9870 Nm

Duty Factors A

139

Duty Factors B

107

Duty Factors C

55

Duty Factors D

28

Maximum Bore Size

6.00 in
152 mm

Maximum Air Pressure

130 psi
9 bar

Recommended Clearance

3/32-5/32 in

Balance Speed

650 rpm

Maximum RPM Standard Air Tube

1090

Maximum RPM Hi-speed Air Tube

1650

Swept Area

362 in²

New Air Tube Volume

18.3 in³
300 cm³

Worn Air Tube Volume

97.6 in³
1599 cm³

Total Clutch Weight

N/A

Total Clutch Inertia

lb·ft²
kg·m²

Weight Hub Center Plate

116 lb
52.6 kg

Dimension D

24.88 in
632 mm

Dimension E

N/A

Dimension F

4.00 in
101.6 mm

Dimension G

0.75 in
19.1 mm

Dimension H

7.38 in
187.5 mm

Dimension I

in
187.5 mm

Dimension J

0.31 in
7.9 mm

Number of Mounting Holes

12

Dimension L

21/32 in
16.7 mm

Dimension M

14.50 in
368.3 mm

Dimension N

9.00 in
228.6 mm

Dimension Q

0.75 in
19.1 mm

Dimensions

N/A

Minimum U

2.00 in
50.8 mm

Maximum U

6.00 in
152.4 mm

Manufacturer

Wichita Clutch

Actuation

Air Applied

Notes

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.)