TYPES	Holding torque in-lbs	Operating pressure psi
R50-4B	371.73	58
R50-6B	531.04	87
R60-4B	522.19	58
R60-6B	743.46	87
R70-4B	708.06	58
R70-6B	1,009	87
R80-4B	929.33	58
R80-6B	1,327.61	87
R90-4B	1,168.30	58
R90-6B	1,672.79	87
R100-4B	1,486.93	58
R100-6B	2,124.18	87
R120-4B	2,079.93	58
R120-6B	2,973.85	87
R140-4B	2,823.39	58
R140-6B	4,035.94	87
R160-4B	3,717.31	58
R160-6B	5,310.45	87
R180-4B	4,646.64	58
R180-6B	6,638.06	87
R200-4B	5,761.84	58
R200-6B	8,231.19	87
R220-4B	6,877.03	58
R220-6B	9,824.33	87
R240-4B	8,363.95	58
R240-6B	11,948.51	87
R260-4B	9,665.01	58
R260-6B	13,807.16	87
R280-4B	11,151.94	58
R280-6B	15,931.34	87
R300-4B	13,010.60	58
R300-6B	18,586.57	87
R320-4B	14,497.52	58
R320-6B	20,710.75	87
R340-4B	15,984.45	58
R340-6B	22,834.92	87

Clamping Elements
R240-6B

Strong holding force on the shaft

Pneumatic Rotational Clamping
Holding torque 11,948.51 in-lbs

Direct clamping on the shaft: rotation motions are prevented by the ACE models LOCKED R. Their clamping elements are available for shaft diameters of 50 mm to 340 mm (1.97 to 13.38 in) and ensure maximum holding forces.

The clamp is immediately applied by the diaphragm and spring-plate system when pressure is lost. Pneumatic quick-switch valves reduce the reaction times. The costs are low in comparison with hydraulic clamping systems. Compact and easy to install, they still acheive excellent performance. Special versions for YRT bearings, as well as active clamping elements, are available. ACE recommends the use of the optional shaft flange as wear protection. The clamping force can be increased considerably by the use of the additional air function.

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CAD Drawings

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Technical Details

R240-6B

Pneumatic Rotational Clamping

Dimensions

n	24
α	20 °
β	10 °
A	14.49 inch
B	13.78 inch
C opened	9.45+0.002/+0.003 inch
D	0.79 inch
N	G1/8 inch

Technical Data

Holding torque 11,948.51 in-lbs

Operating pressure 87 psi

Shaft diameter 240-0.0004/-0.0012 inch

Clamping cycles 1,000,000

Mounting In any position

Material Outer body: Hardened fine-grain structural steel, inner bore ground

Pneumatic medium Dried, filtered air

Operating temperature range 50 °F to 113 °F

Note

If requested installation drawings of the respective types are provided.

On request