RSBW Backstop Clutch

Integrated Freewheels FXM are sprag free -wheels without bearing support and with sprag lift-off X.The sprag lift-off X ensures freewheel one way clutch operation when the inner ring rotates at high speed. The freewheels FXM are used as: 1. Backstops 2. Overrunning Clutches for applications with high speed freewheeling operation and when used as an overrunning clutch with low speed driving operation. Nominal torques up to 888 000 N.m. Bores up to 460 mm. Many standard bores are available.

Type AV is a roller type freewheel. It is self-contained, centered by plain bearings for low rotational speeds , and sealed using shield protected metallic labyrinth seals. Unit is delivered grease lubricated, ready to install in a horizontal or vertical position. Primarily used as a backstop, the torque capacity is high for a minimum space requirement. This design is suitable for use in difficult environments. A bolt, secured to a fixed part of the machine and passing through the slot in the torque arm, provides the rotational stop. Radial clearance on this bolt should be equal to 1-3 % of the slot width. The torque arm and the bearings must not be prestressed. The roller design makes the AV type ideal for light indexing applications.

BSEU series Cam Clutch was developed as European style Backstopping Cam Clutch which has easy usage. It has Cam & Roller construction that the roller works as a bearing same as the small size BS series Cam Clutch. The outer race has special shape which was combined the torque arm, so only stopping the rotation is required. You can select the correct model from various bore size from 20 mm to 90 mm in each 5 mm. Backstopping for the country elevator or the foods conveying conveyor which is used in the factory is the recommendation. The recommends BS series Cam Clutch in the very dusty environment condition or the inclined conveyor and the bucket elevator which are used in outside location.

Type RSCI is a centrifugal lift off sprag type freewheel with the inner race rotating. Only the inner race is designed for freewheeling. It is a non self- supported type. Bearings must be provided to ensure concentricity of the inner and outer races support axial and radial loads, as shown overleaf. Concentricity and runout limits must be observed. The RSCI type accepts all types of lubricant currently used in power transmission equipment. It is possible to mount these freewheels directly in gear-boxes without separate lubrication. An oil mist is generally sufficient. Grease lubrication may be acceptable if the unit works mostly in overrunning condition, as on E-motors. When used as a backstop, it must be checked that the overrunning speed will not go below the minimum speed given in the characteristics table.