Ratchet overload clutch 1520 Nm on PTO. Overload clutch for PTO power take-off shaft designed to protect machines from damage of active working units such as rotary harrows, soilers, flail mowers, spreaders, active weeders, shredders, etc. The clutch works on the principle of a ratchet mechanism held by springs. When a torque of about 1520 Nm is reached, the springs bend and the mechanism jumps, disconnecting the drive. A distinctive sound can be heard when it engages. The clutch is universal, it can be mounted on the PTO shafts of various tractors and machines. Parameters: Standard ends: 1 3/8''-6Z Max transferred torque: 1520 Nm Length: 195 mm Spring-loaded latch