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Size
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12CB350
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Torque Rating (75 psi/5.5 bar)1
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26600 lb·in
3010 Nm
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Maximum Speed2
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1800 rpm
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Centrifugal Loss Constant Cs
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0.83 E-06 bar/rpm2
12 E-06 psi/rpm2
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Inertia
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25 lb·ft²
1.05 kg·m²
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Weight
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62 lb
28 kg
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Friction Area
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256 in²
1651 cm²
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New Friction Lining Thickness
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0.20 in
5 mm
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Worn Friction Lining Thickness
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0.06 in
2 mm
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Air Tube Cavity3
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160 in³
2.62 dm³
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Minimum Drum Diameter
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11.9 in
302 mm
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Dimension D2
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10.13 in
257 mm
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Dimension D25
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0.19 in
5 mm
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Dimension G4
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17.625 in
447.7 mm
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Dimension H2
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16.875 in
428.6 mm
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Dimension H6
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12.13 in
308 mm
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Dimension H7
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16.88 in
429 mm
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Number of Mounting Holes
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14
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Bolt Hole Size L
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0.375 in
10 mm
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Dimension O3
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0.31 in
8 mm
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Air Inlet Thread
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3/8-18
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Angle Q
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12.857 º
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Dimension V
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0.69 in
17 mm
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Number of Friction Shoes
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24
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Friction Shoe Width (W)
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8.75 in
222 mm
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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)
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