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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Two dual flanged elements can be bolted together to form a dual element having twice the torque capacity of a single element. Dual elements can be furnished in sizes 12CB350 through 45CB525.
Unit of Measure

Specifications

Size

 N/A 12CB350
Torque Rating (75 psi/5.5 bar)1 N/A 26600 lb·in3010 Nm
Maximum Speed2 N/A 1800 rpm

Centrifugal Loss Constant Cs

 N/A 0.83 E-06 bar/rpm2 12 E-06 psi/rpm2

Inertia

 N/A 25 lb·ft²1.05 kg·m²

Weight

 N/A 62 lb28 kg

Friction Area

 N/A 256 in²1651 cm²

New Friction Lining Thickness

 N/A 0.20 in5 mm

Worn Friction Lining Thickness

 N/A 0.06 in2 mm
Air Tube Cavity3 N/A 160 in³2.62 dm³

Minimum Drum Diameter

 N/A 11.9 in302 mm

Dimension D2

 N/A 10.13 in257 mm

Dimension D25

 N/A 0.19 in5 mm
Dimension G4 N/A 17.625 in447.7 mm

Dimension H2

 N/A 16.875 in428.6 mm

Dimension H6

 N/A 12.13 in308 mm

Dimension H7

 N/A 16.88 in429 mm

Number of Mounting Holes

 N/A 14

Bolt Hole Size L

 N/A 0.375 in10 mm

Dimension O3

 N/A 0.31 in8 mm

Air Inlet Thread

 N/A 3/8-18

Angle Q

 N/A 12.857 º

Dimension V

 N/A 0.69 in17 mm

Number of Friction Shoes

 N/A 24

Friction Shoe Width (W)

 N/A 8.75 in222 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:
    12 thru 24, 28 and 32
    +0.000/-0.005 in (+0.00/-0.13 mm)
    26 and 30
    +0.000/-0.008 in (+0.00/-0.20 mm)
    36 thru 45
    +0.000/-0.010 in (+0.00/-0.25 mm)