The Rowland Company
The Rowland Company
4900 North 20th St.
Philadelphia, PA 19144
Toll Free: (800) 925-8824
Phone: (215) 455-4900
Fax: (215) 455-8888
Email: rowland@rowland2.com
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Section B
Form CB-402
Unit of Measure

Specifications

Size

 40CB525
Torque Rating (75 psi/5.5 bar)1 211000 lb·in23800 Nm
Maximum Speed2 750 rpm

Centrifugal Loss Constant Cs

 3.59 E-06 bar/rpm2 52 E-06 psi/rpm2

Inertia

 730 lb·ft²30.66 kg·m²

Weight

 201 lb91 kg

Friction Area

 610 in²3935 cm²

New Friction Lining Thickness

 0.33 in8 mm

Worn Friction Lining Thickness

 0.06 in2 mm
Air Tube Cavity3 380 in³6.23 dm³

Minimum Drum Diameter

 39.81 in1011 mm

Dimension D2

 6.94 in176 mm

Dimension D24

 2.75 in70 mm

Dimension D25

 0.28 in7 mm
Dimension G4 48.625 in1235.1 mm

Dimension G1

 45.56 in1157 mm

Dimension H2

 47.125 in1197 mm

Dimension H6

 40.19 in1021 mm

Dimension H7

 47.25 in1200 mm

Number of Mounting Holes

 20

Bolt Hole Size L

 0.750 in19 mm

Dimension O3

 0.63 in16 mm

Air Inlet Thread

 3/4-14

Angle Q

 9.000 º

Dimension V

 0.84 in21 mm

Number of Friction Shoes

 24

Friction Shoe Width (W)

 5.25 in133 mm

Note

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)