Importance

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Abstract

A fixed type disc brake caliper (8, FIG. 1) has a body (10, FIG. 1) machined from at least one solid piece of material. The body comprises a pair of limbs (12, 14) interconnected by spaced bridging members (16, 18), each limb housing one or more hydraulic cylinders (26, 28, 30). The caliper has a cooling fluid passage (45, FIG. 1) for circulating cooling fluid through both limbs. In each of the limbs, the passage extends through both an upper peripheral wall region (42) between the cylinders and an upper face (38) and a lower peripheral wall region (44) between the cylinders and a lower face (40), so that the cooling fluid passage at least partially surrounds opposing side wall regions (54) of the, or each, cylinder in the limb. Advantageously, the passage (54) is formed by milling a channel (46) of varying depth around the pistons from an outer side face (48) of each limb. A cover plate (82, FIG. 6) is welded to the outer side face of each limb to close the open side of the channel.

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First Claim