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142265

Single Flange CB Elements

Section B
Form CB-402

Specifications

Size

20CB500

Torque Rating (75 psi/5.5 bar)1

53600 lb·in
6060 Nm

Maximum Speed2

1300 rpm

Centrifugal Loss Constant Cs

25 E-06 psi/rpm2
1.73 E-06 bar/rpm2

Inertia

90 lb·ft²
3.78 kg·m²

Weight

88 lb
40 kg

Friction Area

288 in²
1858 cm²

New Friction Lining Thickness

0.26 in
7 mm

Worn Friction Lining Thickness

0.06 in
2 mm

Air Tube Cavity3

170 in³
2.79 dm³

Minimum Drum Diameter

2.79 in
2.79 mm

Dimension D2

6.63 in
168 mm

Dimension D24

2.50 in
64 mm

Dimension D25

0.19 in
5 mm

Dimension G4

27.500 in
698.5 mm

Dimension G1

24.75 in
629 mm

Dimension H2

26.375 in
669.9 mm

Dimension H6

20.19 in
513 mm

Dimension H7

26.38 in
670 mm

Number of Mounting Holes

12

Bolt Hole Size L

0.500 in
13 mm

Dimension O3

0.38 in
10 mm

Air Inlet Thread

3/8-18

Angle Q

15.000 º

Dimension V

0.81 in
21 mm

Number of Friction Shoes

21

Friction Shoe Width (W)

5.00 in
127 mm

Manufacturer

N/A

Notes

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)