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142269

Single Flange CB Elements

Section B
Form CB-402

Specifications

Size

28CB525

Torque Rating (75 psi/5.5 bar)1

106000 lb·in
12000 Nm

Maximum Speed2

1000 rpm

Centrifugal Loss Constant Cs

37 E-06 psi/rpm2
2.55 E-06 bar/rpm2

Inertia

252 lb·ft²
10.58 kg·m²

Weight

140 lb
63 kg

Friction Area

430 in²
2774 cm²

New Friction Lining Thickness

0.33 in
8 mm

Worn Friction Lining Thickness

0.06 in
2 mm

Air Tube Cavity3

280 in³
4.59 dm³

Minimum Drum Diameter

4.59 in
4.59 mm

Dimension D2

6.94 in
176 mm

Dimension D24

2.50 in
64 mm

Dimension D25

0.25 in
6 mm

Dimension G4

36.000 in
914.4 mm

Dimension G1

33.00 in
838 mm

Dimension H2

34.750 in
882.7 mm

Dimension H6

28.19 in
716 mm

Dimension H7

34.50 in
876 mm

Number of Mounting Holes

16

Bolt Hole Size L

0.625 in
16 mm

Dimension O3

0.50 in
13 mm

Air Inlet Thread

1/2-14

Angle Q

11.250 º

Dimension V

0.84 in
21 mm

Number of Friction Shoes

21

Friction Shoe Width (W)

5.25 in
133 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)