Locking Collar: A Simple Yet Important Machine Component

The locking collar is a machine component found in many power transmission applications, and it is highly useful in motors and gearboxes. This collar is typically used as a mechanical stop, locator component, and bearing face that comes with easy installation. The collar has a counterbored recess that is purposely made eccentric to the collar bore. When assembled on the shaft, this eccentric recess engages or mates with an eccentric cam end of a bearing's inner ring. This assembly tightly grips the shaft with a positive binding action that increases with use.

Common Uses of Locking Collars

• As a mechanical stop to prevent an object from moving past a certain point on a shaft
• As a locator component to accurately position an object on a shaft
• As a bearing face to provide support for rotating or sliding objects

Advantages of Locking Collars

• Easy installation and removal
• Positive binding action that increases with use
• High clamping force capacity
• Accurate and precise positioning of objects on a shaft

Materials Used for Locking Collars

Locking collars can be made from different materials including:

• Stainless steel
• Carbon steel
• Aluminum
• Brass

How to Install, Maintain, Repair, and Replace Locking Collars

Installing locking collars is easy. Simply slide the collar onto the shaft and use a set screw to secure it in place. Regular maintenance is important to ensure a long service life. Check the set screw regularly and tighten it if it becomes loose. If a locking collar becomes damaged, it can be repaired by replacing the set screw or the entire collar if necessary. When replacing a locking collar, ensure that the new collar has the same specifications as the old one.

Other Products from Our Company

We supply various plastic gear used in different industries such as agricultural gearboxes, power output shafts, sprockets, fluid couplings, worm gear reducers, gears and racks, detachable chains, pulleys and pulleys, planetary gearboxes, timing pulleys, bushings, and more. Our products are of high quality, offered at favorable prices, and come with considerate service. We welcome customers to come to us for drawing or sample customization.

Q&A

1. What is a locking collar used for?

A locking collar is used as a mechanical stop, locator component, and bearing face in power transmission applications.

2. What materials are used to make locking collars?

Locking collars can be made from stainless steel, carbon steel, aluminum, and brass.

3. How do you install a locking collar?

Slide the collar onto the shaft and use a set screw to secure it in place.

4. Is regular maintenance important for locking collars?

Yes, regular maintenance is important to ensure a long service life. Check the set screw regularly and tighten it if it becomes loose.

5. How do you replace a locking collar?

When replacing a locking collar, ensure that the new collar has the same specifications as the old one. It can be repaired by replacing the set screw or the entire collar if necessary.