When installing Power-Lock on a shaft that already has a keyway, such as a motor shaft, the transmission torque Mt and thrust load Pax will be reduced by 10%.

• Transmission torque: Mt × 0.9
• Thrust load: Pax × 0.9

To maximize the performance of Power-Lock, use it in an ambient temperature range of -30°C to 200°C.

The tightening torque MA of the tightening bolts has a tolerance of ±5%.

This value is sufficient to guarantee the transmission torque Mt and thrust load Pax, and any possible errors in proper use of the torque wrench are fully absorbed.

When assembling Power-Lock, it is very important to oil the body and tightening bolts.

It is often thought that applying oil to Power-Lock will cause it to slip or the tightening bolts to loosen, but the bolt tightening torque is calculated based on efficiency when the bolt is lubricated, and oil is also essential for smooth movement on the tapered surface.

Conversely, if oil is not applied, the axial force will decrease, reducing the transmission torque by approximately 25%, and it may also cause problems such as galling of the tightening bolts, so never degrease the bearing.

For stainless steel and electroless nickel plated models, the tightening bolts are coated with a special lubricant, and the main body is designed to be used in a dry state, so do not apply oil or grease when assembling.

Even if exposed to water droplets or rainwater, the high surface pressure on the mounting contact surface of Power-Lock prevents water from entering, so performance is not reduced.

However, rust will occur on all surfaces except the contact surface. Bolts in particular are subject to large tension, so rust will reduce their strength and fastening force, causing them to break.

To prevent this, cover Power-Lock and fill it with grease to prevent rust.

If a cover cannot be attached, use the stainless steel or electroless nickel-plated specifications.