FFS Series Friction Torque Limiter PTO Overload Protection Clutch

FFS Series Friction Torque Limiter PTO Overload Protection Clutch

PTO Overload Protection Clutch Introduction

When agricultural machinery manufacturers fit a PTO overload clutch to their implements and equipment, they take into account the maximum torque that the PTO driveline can handle on that piece of equipment including gearboxes, shafts, chains and sprockets.

For example ( maximum gearbox torque rating 2000Nm )
The manufacturer will then fit a PTO overload clutch to the implement with a slightly lower torque rating, thereby ensuring that the maximum gearbox torque rating is not exceeded in the event of a machine blockage or obstruction.

There are generally two types of PTO overload clutch, a cam cut-out clutch and a friction disc torque limiting clutch, commonly all referred to as "PTO Slip Clutches".

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​1. pressure plate
2. internal disc
3. friction lining(qty=2)
4. hub
5. taper pin for the hub(with nuts)
6. bushing
7. flanged yoke
8. complete bolt & spring(qty=8)

PTO Overload Clutch Importance

The important role that the PTO slip clutch plays is often overlooked in the event of a PTO driveline breakdown. These often expensive breakdowns are usually regarded as an unfortunate occurrence or "bad luck".

​The reality is that if the PTO slip clutch is properly maintained, it will protect all components in the PTO driveline including the tractor transmission and the implement agricultural gearboxes in the event of a machine blockage or obstruction.

PTO Overload Clutch Service Intervals

Friction Clutches can seize or go over their recommended torque limit when not in use and should be serviced once every year, 1 - 2 months before the start of the working season.

Cam Cut Out Clutches can seize or go over their torque limit, when the special anti-friction grease which lubricates them breaks down and loses its properties. Cam clutches should be tested once every year and serviced once every two years.

We also Supply PTO Shafts & Agricultural Gearboxes.

Agricultural gearboxes: https://hzpt.com/agricultural-pto-gearbox/

PTO Overload Clutch Manufacture

Ever-power covers an area of more than 12000 square meters and employs more than 100 people. We specialize in developing, manufacturing, and selling PTO shafts, industrial universal shafts, automobile drive shafts, universal joint coupling shafts, universal joints, etc. The annual turnover is 60 million yuan and 9 million US dollars, increasing year by year. Our products enjoy a high reputation among customers in Europe, the United States, Asia, Australia, and North America. We are the top three professional OEM suppliers of many agricultural tool factories in the domestic market. ever-power transmission shaft adheres to our “QDP” principle: quality first, rapid delivery, and competitive price. We have obtained CE, TS / 16949, and ISO9001 certification, and have systematic production equipment and a QC team to ensure our quality and delivery. We warmly welcome friends from all walks of life to visit and establish mutually beneficial long-term cooperative relations.