Spring activated brake STH Series

frictionwith pneumatic releasesafety

SPRING ENGAGED BRAKES Standard Series Flange Mount Flange Mounted Friction Brakes for Power Off Holding Function: Holding, Failsafe (Non-Cycling Applications) Drive Arrangement: Machine Frame or Bracket to Shaft Operation Spring pressure compresses drive and friction discs to produce a fixed amount of torque. The brake releases when energized with sufficient air pressure (see table below). Mounting The brake flange bolts to a machine frame or other fixture, the shaft inserts into the bore and is fixed with a customer supplied key. Brake can also be mounted mid-shaft with the flange connected to a bracket. Spring engaged brakes are designed for horizontal mounting. If vertical mounting is required, consult engineering. Applications Spring engaged brakes are designed for holding applications. Maximum RPM varies by model. Please consult the detail sheets (below). Consult engineering if the intended application exceeds the listed maximum RPM. Design Features Spring engaged brakes are made-to-order with any bore size up to the maximum shown for easy installation. Drilled and slotted flange allows for variable installation arrangements. Low coefficient friction lining versions are available for applications requiring slip or a narrower torque range. Contact engineering for details.