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-401
Unit of Measure

Specifications

Size

 N/A 3CB150
Torque Rating (75 psi/5.5 bar)1 N/A 360 lb·in40.7 Nm
Maximum Speed2 N/A 2000 rpm

Centrifugal Loss Constant Cs

 N/A 0.10 E-06 bar/rpm2 1.5 E-06 psi/rpm2

Inertia

 N/A 0.1 lb·ft²0 kg·m²

Weight

 N/A 1.8 lb0.8 kg

Friction Area

 N/A 14 in²90.3 cm²

New Friction Lining Thickness

 N/A 0.20 in5 mm

Worn Friction Lining Thickness

 N/A 0.04 in1 mm
Air Tube Cavity3 N/A 7 in³0.12 dm³

Minimum Drum Diameter

 N/A 2.90 in74 mm

Dimension D2

 N/A 2.16 in55 mm

Dimension D24

 N/A 1.18 in30 mm

Dimension D25

 N/A 0.10 in2 mm
Dimension G4 N/A 6.299 in160 mm

Dimension G1

 N/A 4.86 in123 mm

Dimension H2

 N/A 5.748 in146 mm

Dimension H6

 N/A 3.15 in80 mm

Dimension H7

 N/A 5.75 in146 mm

Number of Mounting Holes

 N/A 8

Bolt Hole Size L

 N/A 0.25 in6 mm

Dimension O3

 N/A 0.28 in7 mm

Air Inlet Thread

 N/A 1/8-27

Angle Q

 N/A 22.500 º

Dimension V

 N/A 0.35 in9 mm

Number of Friction Shoes

 N/A 6

Friction Shoe Width (W)

 N/A 1.50 in38 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)