SEW Eurodrive AR Adapter with Torque Limiting （缝Eurodrive AR适配器与转矩限制）.pdfVIP

Constant Speed Gear Reducers R/F/K/S Gear Units with Input Options 6.4. AR adapter with torque limiting coupling Helical-bevel gear unit with AR adapter SEW helical, parallel shaft helical, helical-bevel and helical-worm gear units are configured with an adapter and torque limiting coupling in order to protect the machine and the drive against overload. IEC standard motors of sizes 71 to 180 can be mounted. The torque is transmitted through a non-positive engagement involving friction ring pads. The slip torque of the coupling is set using a setting nut and cup springs. Various slip torques are possible depending on the thickness and arrangement of the cup springs. In the event of an overload, the coupling slips and interrupts the powerflow between the motor and the gear unit. This prevents damage to the machine and the gear drive. Multi-stage gear units with adapter and torque limiting coupling When used in conjunction with multi-stage gear units, the best place to install the adapter and torque limiting coupling is between the two gear units. Please contact SEW if required. Selection of the gear unit The unit sizes of the AR adapter with torque limiting coupling are the same as the AM adapter for IEC motors. As a result, the gear unit can be selected using the selection tables for AM adapters. In this case, substitute the unit designation AM with AR and ascertain the required slip torque. Ascertaining the slip torque The slip torque should be about 1.5 to 2 times the rated torque of the drive. When determining it, bear in mind the maximum permitted output torque of the gear unit as well as the variations in the slip torque of