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    Calipers for Industrial Disc Brakes / MR

    The Twiflex MR series of calipers for industrial disc brakes are suitable for use with discs of 12.7 mm or 25.4 mm thick. Minimum disc diameter is 250 mm. Minimum disc diameter for the MR2 is 460 mm.


    Normally one or two calipers are used per disc, but the number may be increased depending on disc size. The brakes may be positioned at any angle around the periphery of the disc, but should ideally be mounted horizontally (i.e. at the 3 o’clock or 9 o’clock position). If the caliper mounting angle is greater than 10° from the horizontal, or on vertical shaft applications, it should be fitted with an equalizing link. A range of brake discs is available from Twiflex (see Disc and Hub Assemblies).


    For pneumatic operation use dry, filtered and non-lubricated compressed air. Pneumatic industrial disc brakes require a control valve, operated either manually or by pneumatic or electrical signal.


    The ratings shown on the graphs are based on fully bedded-in and conditioned brake pads with a nominal friction coefficient μ = 0.4. Twiflex industrial disc brakes must be used with Twiflex asbestos free brake pads.


    Effective disc radius = actual radius (m) – 0.03m.

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