ABIS Bearing Accessories for Precision Bearing Assemblies

Complete your precision bearing assembly with ABIS accessories supplied by IEC, including shims, spring washers, retaining rings, and preload support components for accurate bearing location, adjustment, and assembly control.
ABIS spring washer

ABIS Shims, Spring Washers & Retaining Rings

A precision bearing is only as reliable as the assembly around it. Shims, spring washers, retaining rings, and preload components help engineers manage location, spacing, axial control, clearance, and repeatability. IEC’s ABIS catalogue includes accessories such as shaft retaining rings, bore retaining rings, shims and spring washers, K preload springs for ball bearings, and Fey locating rings for axial positioning.

For engineering teams, ABIS accessories help fine-tune bearing performance and assembly fit. For procurement teams, sourcing bearings and accessories together through IEC can simplify purchasing, reduce supplier complexity, and improve part compatibility.

Common Bearing Accessory Challenges We Solve

Bearing & Component Retention

Problem

Bearings and shafts need to be held securely in place on an assembly, but many designs also require quick, tool-free removal for servicing or rework – without redesigning the parts.

Solution

ABIS Bore/Retaining Rings (Snap Rings / Circlips): These fit into a machined groove to create a reliable shoulder that stops axial movement, keeping bearings and components accurately positioned and rigidly retained. They’re designed for fast assembly and disassembly with standard tools, manufactured in stainless steel for corrosion resistance and long service life, and supplied across shaft sizes of 3–10mm and bore sizes of 4–19mm. Typical uses include defence equipment, medical and dental devices, precision instruments, pumps, robotics, and drone gearboxes.

Bearing Preload & Axial Play

Problem

In compact assemblies, uncontrolled axial play leads to reduced accuracy, increased noise, and shortened bearing life – but there’s often very little space to fit a conventional preload spring.

Solution

ABIS Wave Washers: A wave-shaped profile generates a consistent spring force between components, removing axial play and maintaining stable preload even in tight, space-limited assemblies. Supplied in stainless steel for durability and reliable performance, they help improve accuracy, reduce noise, and extend bearing life in precision applications.

Spacing, Alignment & Tolerance Compensation

Problem

Manufacturing tolerances and stack-up variation can leave gaps or misalignment between components, affecting fit and performance – without wanting to remachine or redesign parts to fix it.

Solution

ABIS Shim Washers: Thin precision washers used to fine-tune spacing, alignment, and clearance between bearings, shafts, and gears. Available from 1.55×2.90mm up to 16.20×18.55mm, they compensate for tolerance build-up and dimensional variation, helping maintain correct alignment and reduce friction and wear – all without complex mechanisms or part redesign.

ABIS accessories are sold in packs of 100

Lots of ABIS spring washers in a clear packet.

Typical applications

ABIS accessories are relevant for:

Bearing Preload

Control axial play, reduce noise, and compensate for tolerance or thermal movement with engineered preload solutions for precision bearing assemblies.
Lots of ABIS spring washers in a clear packet.

ABIS Accessories

Source shims, spring washers, retaining rings, and preload accessories to complete precision bearing assemblies with confidence.
A pair of ABIS locknuts

ABIS Locknuts

Secure bearings accurately on shafts with ABIS KM locknuts, tab washers, and installation tooling available through IEC.

Need help matching accessories to your bearing?

Send IEC the bearing reference, shaft size, housing size, axial space, and application details. Our team will help identify compatible ABIS accessories.
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Markets

Markets

IEC have a range of mechanical solutions to suit a broad spectrum of markets and applications, from aerospace to skateboards.

Markets

IEC have a range of mechanical solutions to suit a broad spectrum of markets and applications, from aerospace to skateboards.

From aerospace components to skateboard bearings, IEC delivers precision mechanical solutions for an exceptionally broad range of markets and applications.

Markets

IEC have a range of mechanical solutions to suit a broad spectrum of markets and applications, from aerospace to skateboards.

Markets

IEC have a range of mechanical solutions to suit a broad spectrum of markets and applications, from aerospace to skateboards.

Case Studies

We act as partners, making our customers’ engineering challenges ours to solve, removing stress and freeing up time to turn ideas in to innovation.

Excavator Automotive Parts Supplier - IEC Ltd
Product:
Laminar seal rings
Application:
Turbo engine shaft sealing
Challenge:
Bearing and equipment damage can occur due to high operating temperatures and or particulate ingress, particularly in harsh working environments such as experienced by off-highway vehicles.
Solution:
IECs technical team worked closely with the client’s engineering team and manufacturing partners to provide custom-designed metallic sealing solutions to prevent contamination ingress and deliver a low friction solution for high-speed turbo engines, extending equipment life and service intervals.
Supersonic Car Auto Parts Manufacturer
Product:
Safety Washers & Fuji Lock Nuts
Application:
Supersonic car
Challenge:
Bloodhound LSR was a UK-based project aiming to break the world land speed record using the most advanced straight-line racing car ever built.  Designed to travel at supersonic speeds, our safety washers are employed throughout the vehicle, and our lock nuts were employed in two critical systems.
Solution:
Within the gearbox of the Jaguar supercharged V-8 auxiliary power unit that would drive the oxidiser pump for the one Eurofighter jet engines. Additionally, IEC’s lock nuts were used to secure the rear wheels in position as they spun up to 10,200 rpm, resist centrifugal forces of up to 50,000 Kg.

We look forward to helping you.

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