Locking Assembly


Locking assemblies are designed for play-free, friction-connected assemblies (hubs) on smooth, slot-free shafts/shafts. This frictional connection is achieved directly by the locking assembly (intermediate locking system).
A key feature of the locking assemblies is their clamping capability via the integrated screws and their non-destructive disengagement when these screws are loosened/the ring is depressed. In addition to our standard versions, stainless steel, nickel plated, imperial and special versions are also available

Our Facilities & Services

Curabitur arcu erat, accumsan id imperdiet et, porttitor at sem. Quisque velit nisi, pretium ut lacinia in, elementum id enim. Curabitur non nulla sit amet nisl tempus convallis quis ac lectus. Cras ultricies ligula sed magna dictum porta. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur arcu erat, accumsan id imperdiet et, porttitor at sem. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae

Locking assembly EAL3

It consists of cut inner and outer rings and spacers that prevent the hub from moving relative to the shaft when the screws are tightened. This locking device is particularly suitable for applications requiring low hub pressure. Recommended for aluminum wheels or wheels with lower mechanical properties.

Locking assembly EAL5A

Consists of inner and outer rings with slits. This type of locking device is especially useful for applications that require excellent hub-to-shaft concentricity and squareness.

Locking assembly EAL5B

Consists of inner and outer rings with slits. This type of locking device is particularly useful in applications that require good hub-to-shaft concentricity and squareness. It is also used to lock down mechanically lower hubs.

Locking assembly EAL6

Consists of inner and outer rings with slits. This type of locking device is particularly useful in applications that require good hub-to-shaft concentricity and squareness.

Our Products

If you need a custom product, or the product you need is not found on our website, don’t worry, more of our products are still uploading. You can email us directly and we will reply you within 24 hours!

Product advantages

  • Most units are self-centering
  • It can be reused indefinitely
  • High dynamic and static load-carrying capacity
  • Axial and angular adjustments are possible on site
  • Minimal torque loss due to the keyway on the shaft
  • Overload capability and the eventual slip will not compromise shaft integrity.
  • Easy to assemble and disassemble: does not require any prior hub or axle preparation
  • Corrosion resistant: active surfaces are protected, and there is no space between connections
  • Various loads can be handled, including torque, bending moment, and axial and radial thrust.

Equipment failure causes and avoidance methods

Weak locking component failed

Any drum or pulley shaft bending creates a bending moment that creates high stress within the locking assembly. These stresses are unevenly distributed in the component, leading to two distinct failure modes:
1. One side of the locking device will experience very high stresses, sometimes exceeding the yield strength of the material used for the locking device.
2. The other side of the locking device will experience a lower force from the bending moment. But the low-force side tends to lift off the shaft. This lift is barely visible but is enough to allow a slight sliding movement between the locking mechanism and the shaft. The result is fretting wear that can eventually damage the locking assembly and shaft.

Sturdy locking assembly survives

To avoid previous failures, you need to specify a locking assembly that is specifically designed to withstand bending moments. Here are three differences in the design:
1. For example, designs provided for these moment applications use materials with yield strengths 40% higher than standard locking assemblies.
2. Designs with high bending moments tend to be wider because wider components are inherently more resistant to moments.
3. Finally, we reduce the working stress that the component can withstand by optimizing the number and location of bolt holes. As a result, we can significantly improve the ability of the locking assembly to resist moment loads.

Additional advantage

These design improvements that help address bending moments have additional benefits related to component size and cost. The moment capacity of the locking assembly determines the size of the shaft. Therefore, if you oversize the locking assembly for moment loads, you must oversize the shaft and bearing. And this type of engineering can be expensive.

The Benefits of a Locking Assembly for Pulleys

The locking assembly for the pulley is designed to securely lock the pulley to the shaft. It consists of two conical halves connected by a series of bolts. The inside of each half is tapered to allow for expansion when the bolt is tightened. Locking elements are available for a variety of pulleys, including those made for conveyors.
Another benefit of the locking assembly is that it has no moving parts. This makes it ideal for high torque applications. Can also be used for warehouse automation and other rotating machinery. Its friction design also reduces wear on machine parts. In addition, the stainless steel locking assembly has a short lead time and is easy to install.
In addition to self-centering, the locking assembly also provides a high degree of concentricity. A common application for these components is gear mounting. In addition, they are used in rotary pumps and machine tools. They provide a 360-degree clamping force on the shaft while transmitting torque and axial loads through friction from the hub and the functional surfaces of the locking assembly.

  How Keyless Locking Devices Work

A keyless locking mechanism creates a 360-degree clamping force on the shaft to locate components. More specifically, they allow axial or torsional loads to be transmitted through radial clamping pressure and friction between the functional surfaces of the shaft, hub, and locking assembly.

Our team has produced keyless locking devices for over 20 years that are ideal for any axle-to-hub connection application.
Suitable for connecting any type of hub (flywheels, pulleys, sprockets, gears, levers, eccentrics, couplings, etc.) and can be used in a variety of industrial applications.

locking assembly application

Our Blog

Get in Touch

[email protected]


Open Hours

Mon – Fri — 8:00am – 5:00pm
Saturday — 9:00am – 3:30pm
Sunday — Closed

What types of keyless locking components can we offer you?

We offer our customers different types of shaft locking devices designed to cover a wide range of applications.
Keyless locking assemblies are also known as keyless shaft locking devices, tapered clamping elements, power locks, shaft clamping elements, shrink discs and keyless rigid couplings.