Size |
20CB500 |
Torque Rating (75 psi/5.5 bar)1 |
53600 lb·in |
Maximum Speed2 |
1300 rpm |
Centrifugal Loss Constant Cs |
25 E-06 psi/rpm2 |
Inertia |
90 lb·ft² |
Weight |
88 lb |
Friction Area |
288 in² |
New Friction Lining Thickness |
0.26 in |
Worn Friction Lining Thickness |
0.06 in |
Air Tube Cavity3 |
170 in³ |
Minimum Drum Diameter |
2.79 in |
Dimension D2 |
6.63 in |
Dimension D24 |
2.50 in |
Dimension D25 |
0.19 in |
Dimension G4 |
27.500 in |
Dimension G1 |
24.75 in |
Dimension H2 |
26.375 in |
Dimension H6 |
20.19 in |
Dimension H7 |
26.38 in |
Number of Mounting Holes |
12 |
Bolt Hole Size L |
0.500 in |
Dimension O3 |
0.38 in |
Air Inlet Thread |
3/8-18 |
Angle Q |
15.000 º |
Dimension V |
0.81 in |
Number of Friction Shoes |
21 |
Friction Shoe Width (W) |
5.00 in |
Manufacturer |
N/A |
Refers to basic part number only. When ordering, the number of air inlets and type of connection must be specified.
1 Dynamic torque shown, static torque approximately 25% greater. Torque in each application is dependent upon air pressure and speed.
2 Maximum rpm is dependent upon operating conditions and varies for each application. Consult factory for applications exceeding these speeds.
3 Drum contact with worn shoes.
4 Tolerance for sizes:
3 thru 5
+0.000/-0.003 in (+0.00/-0.08 mm)
6 and larger
+0.000/-0.005 in (+0.00/-0.13 mm)