The Rowland Company
4900 North 20th Street
Philadelphia, PA 19144
Toll Free: 800-925-8824   Phone: 215-455-4900    Fax: 215-455-8888
E-Mail: rowland@rowland2.com    Web site: www.rowlandcompany.com
All Categories > Clutches and Brakes > Drum Clutches and Brakes > CB Clutches and Brakes > CB Elements and Mounting Components > Single Flange CB Elements > Item # 142270  


Item # 142270, Single Flange CB Elements


Section B
Form CB-402






Specifications  · Note

Specifications

Size

30CB525

Torque Rating (75 psi/5.5 bar)1

121000 lb·in
13700
Nm

Maximum Speed2

950 rpm

Centrifugal Loss Constant Cs

2.76 E-06 bar/rpm2
40 E-06 psi/rpm2

Inertia

303 lb·ft²
12.73
kg·m²

Weight

148 lb
67
kg

Friction Area

458 in²
2954
cm²

New Friction Lining Thickness

0.33 in
8
mm

Worn Friction Lining Thickness

0.06 in
2
mm

Air Tube Cavity3

290 in³
4.76
dm³

Minimum Drum Diameter

29.81 in
757
mm

Dimension D2

6.94 in
176
mm

Dimension D24

2.50 in
64
mm

Dimension D25

0.25 in
6
mm

Dimension G4

38.000 in
965.2
mm

Dimension G1

35.00 in
889
mm

Dimension H2

36.750 in
933.5
mm

Dimension H6

30.19 in
767
mm

Dimension H7

36.50 in
927
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

18

Friction Shoe Width (W)

5.25 in
133
mm
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)


Note
Refers to basic part number only. When ordering, the number of air inlets and type of connection must be specified.