The R series design provides maximum torque within a small envelope. In the R Series design, the piston and actuating cylinder, which is integral with the mounting hub, rotate. Bearings are not required. The shaft on which the hub mounts is rifled and cross drilled to provide passage for the actuating media. A press fit or cap seals are necessary to prevent media pressure loss due to seepage past the hub and shaft interface.
Although the R series design can withstand high rotational speeds, consideration must be given to disengaging and freewheeling speeds when the units are hydraulically actuated. Review the maximum disengaging speed for each standard model.
Operation: Pressurizing the cylinder with fluid or air forces the piston to clamp and lock the friction and separator discs, and release springs. Torque is transferred through the clutch to the drive cup. When pressure is removed, the release springs separate the separator discs and maintain a running clearance between separator and friction disc surfaces.
Mounting: The shaft on which the clutch hub mounts is rifled and cross-drilled to provide passage for the actuating media. A press fit or cap seals are necessary to prevent media pressure loss due to seepage past the hub and shaft interface.
Lubrication: R Series clutches and brakes are designed for wet or dry operation.
Logan has the design and manufacturing capability to replace existing and obsolete electromagnetic clutches with Logan technology.