HRC Couplings

HRC couplings offer a simple, robust and cost-effective solution for general-purpose power transmission. Designed to handle moderate shock loads and misalignment, they are widely used across industry wherever reliability and ease of maintenance are a priority.

ACORN® supplies a comprehensive range of HRC couplings from leading manufacturers, with many popular sizes available from stock for fast delivery throughout the UK.

SKF FRC coupling element
1-20 of 70 products

What are the features and benefits of HRC couplings?

HRC Couplings have a relatively high load carrying capacity and can dampen moderate shock loads and vibration. It can also accommodate incidental misalignment and is virtually maintenance-free. The HRC Coupling is available from Acorn with a pilot bore, finished bore or tapered bush, its interlocking design also makes it easy to install.

Features & Benefits of the Flex Coupling

  • High speed capability
  • Cost effective solution
  • Relatively high load carrying capacity
  • Can accommodate moderate shock loads and vibration levels as well as misalignment
  • Virtually maintenance-free
  • Easy to install with its interlocking design

HRC Couplings FAQs

What is an HRC coupling?

An HRC (Highly Resilient Coupling) is a flexible shaft coupling designed for general industrial applications. It typically consists of:

  • Two cast iron or steel hubs
  • One flexible rubber or elastomeric element

The flexible element sits between the hubs, transmitting torque while cushioning shock loads and accommodating small amounts of misalignment. This combination of rugged construction and resilience makes HRC couplings a popular choice for plant and machinery drives.

How often should the HRC insert be replaced?

The service life of an HRC insert depends on load, speed, alignment, ambient conditions and duty cycle. Regular visual inspections are recommended. Signs such as cracking, tearing, excessive hardness or deformation indicate that the insert should be replaced.

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