PTO Featured Products
- Why all the interest in Ogura PTO clutches?
- Double your belt life (Be a Smooth Operator)
- Why Ogura clutches give your machine more run time
- How Ogura Helps you Make the Cut
- What is the best speed to engage my PTO clutch?
- Why do blades determine clutch life?
- What is the proper clamping force on my PTO clutch end bolt?
- Need a PTO clutch brake for a 27-40HP engine?
- Watching your step? Why it is important to buy genuine OEM replacement PTO clutches.
- What special PTO clutch considerations are made for diesel engines?
- Want to Avoid a Wobbly Clutch?
- What causes belts to wear out faster?
- Why might integral connectors improve your machine?
- How hot can a PTO clutch brake get?
- What is a Flip-Set brake plate?
- Investing in Safety? Remote on/off control and stopping of your rotating blades.
- What happens to my clutch when my machine falls into water or gets caught in a flood?
- PTO clutch brakes are vital to your machines.
- When Every Day is a Grind, Safety isn’t expensive, it’s priceless.
- Get the most out of your PTO clutch brake.
- What happens to my PTO clutch in freezing temperatures?
- Why is my PTO clutch making a growling noise?
- What is the Ogura value and experience?
- Enjoy your hobbies, make more money with reliable autonomous mowing
- Why Ogura Clutches are The Right Choice for Autonomous Mowers?
- What is the five second rule of mowing?
- Can my PTO clutch get wet?
- What happens if oil gets spilled on my clutch?
- What products does Ogura make for the lawn and garden industry?
What is the best speed to engage my PTO clutch?
The best speed to engage the PTO clutch is always the lowest possible speed that provides a smooth engagement for the machine. There is some misinformation published by some manufacturers that the clutch should be engaged at the fastest possible speed. This is not correct if you want to extend the life of the clutch and the drivebelt. Let’s look at the following example:
The following table shows what the clutch would see from a typical three blade mower deck when it is run at full engine speed (3600 rpm) or a lower speed (2200 rpm) assuming an engagement time of around 0.2 seconds, the higher speed operation requires almost 2/3 more energy per engagement and 1/3 more torque. So, by lowering the engagement speed, it increases the overall life cycles of the clutch and reduces the forces on the belt by almost 1/3, increasing overall belt life.
Engagement Speed [RPM] | 3600 | 2200 |
Engagement Energy [Joule] | 4908.1 | 1833.0 |
100% | 37% | |
Engagement Torque [ft-lb] | 99.8 | 61.0 |
100% | 61% |