Metric Internal Circlip's
Metric internal circlips for bores, DIN 472 retaining rings
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Circlips – Metric & Imperial Retaining Rings from Transpower Drives Wellingborough
Transpower Drives supplies a complete range of circlips, retaining rings and locking rings in both metric and imperial sizes, available for same‑day collection in Wellingborough or fast UK‑wide delivery. Our stock covers internal circlips, external circlips, and circlip tools, supporting everything from gearbox rebuilds and hydraulic assemblies to automotive, plant, and general engineering applications.
As a leading circlip supplier in Northamptonshire, we support customers across Northampton, Kettering, Corby, Rushden, Milton Keynes, Bedford and the wider UK with high‑quality components and dependable technical support.
What Is a Circlip?
A circlip (also known as a retaining ring or locking ring) is a semi‑flexible metal fastener designed to sit in a machined groove on a shaft or inside a bore. Once fitted, it provides a secure shoulder that prevents axial movement of components — essential for keeping assemblies aligned, stable and safe under load.
Internal Circlips (for Bores)
Internal circlips fit into a groove inside a housing or bore, preventing components from moving outward.
- Used in gearboxes, cylinders, pumps and housings
- Exert outward pressure into the bore groove
- Size refers to the bore diameter, not the groove
External Circlips (for Shafts)
External circlips fit around a shaft, locking into an external groove to stop components sliding along the shaft.
- Used on motor shafts, axles, pins and rotating assemblies
- Exert inward pressure on the shaft groove
- A 20mm shaft uses a 20mm external circlip (DIN 471 equivalent)
Based in Wellingborough, we supply circlips to customers across Northamptonshire, including Northampton, Kettering, Corby, Rushden, Irthlingborough, Milton Keynes and Bedford, with rapid UK‑wide delivery for trade, automotive, engineering and maintenance sectors.
Need help identifying the correct circlip size? Call our team on 01933 441101 and we’ll match it for you.
