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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8CB250 Element
Form CB-401
 
 
 
Unit of Measure

Specifications

Size

 N/A 8CB250
Torque Rating (75 psi/5.5 bar)1 N/A 4290 lb·in485 Nm
Maximum Speed2 N/A 1800 rpm

Centrifugal Loss Constant Cs

 N/A 0.48 E-06 bar/rpm2 7.0 E-06 psi/rpm2

Inertia

 N/A 2.0 lb·ft²0.08 kg·m²

Weight

 N/A 9 lb4.1 kg

Friction Area

 N/A 61 in²393.5 cm²

New Friction Lining Thickness

 N/A 0.12 in3 mm

Worn Friction Lining Thickness

 N/A 0.06 in2 mm
Air Tube Cavity3 N/A 30 in³0.49 dm³

Minimum Drum Diameter

 N/A 7.90 in201 mm

Dimension D2

 N/A 3.44 in87 mm

Dimension D24

 N/A 1.91 in48 mm

Dimension D25

 N/A 0.09 in2 mm
Dimension G4 N/A 12.875 in327 mm

Dimension G1

 N/A 11.19 in284 mm

Dimension H2

 N/A 12.125 in308 mm

Dimension H6

 N/A 8.16 in207 mm

Dimension H7

 N/A 12.13 in308 mm

Number of Mounting Holes

 N/A 8

Bolt Hole Size L

 N/A 0.38 in10 mm

Dimension O3

 N/A 0.31 in8 mm

Air Inlet Thread

 N/A 3/8-18

Angle Q

 N/A 22.500 º

Dimension V

 N/A 0.56 in14 mm

Number of Friction Shoes

 N/A 8

Friction Shoe Width (W)

 N/A 2.50 in64 mm

Manufacturer

 N/A Airflex

Note

N/A Refers to basic part number only. When ordering, the number of air inlets and type of connection must be specified. For example 142096JA, 142096JB, 142096JC, 142096JG

 
 
 
  • 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)