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The spring applied Model 5027 brake caliper is equipped with an
actuator requiring fluid pressure to release and internal springs to apply the
brake. The more pressure that is accumulated in the actuator, the lower the
torque; and the less pressure, the higher the torque.
The actuator itself is extremely responsive and will give
infinite control over brake torque. Adjustments are provided at the actuator to
compensate for lining wear. The smaller the clearance between the brake shoe and
disc, the higher the maximum torque. In applications where constant drag is
required, the large shoe area will eliminate frequent lining replacement.
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