Öhlins O-ring 52x3 NBR 70Öhlins O-ring 52x3 NBR 70
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number00438-10
CategoryO-Rings
Inner Diameter52 mm
Cross Section3 mm
MaterialNBR 70
Country of OriginSweden
DescriptionThe whole story▼

O-ring 52x3 NBR 70, Öhlins part number 00438-10. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.

Key Features

  • Öhlins part number 00438-10
  • Original Öhlins service part
  • Inner Diameter 52 mm
  • Cross Section 3 mm
  • Material NBR 70

Where It Sits

52 mm, 3 mm, NBR 70: that is the whole specification, and it has to match what came out. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel. Nitrile, Viton and PTFE behave differently with temperature, and Öhlins picks per position. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job.

Why the Original

This is an original Öhlins part, not an aftermarket equivalent — the tolerances are the ones the unit was assembled to. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. For a full rebuild, the seal kit plus the wear parts is usually the sensible order. Öhlins parts are unit-specific: a close dimension is not a substitute.

Getting the Number Right

00438-10 is the Öhlins number for this position — the same one printed in the service documentation. Öhlins states inner diameter 52 mm, cross section 3 mm, material NBR 70 for this number, and those figures are the deciding ones. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure.

Fitting and Setup Service

Öhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.

Specifications

  • Brand: Öhlins
  • Part Number: 00438-10
  • Category: O-Rings
  • Inner Diameter: 52 mm
  • Cross Section: 3 mm
  • Material: NBR 70
  • Country of Origin: Sweden
07 · Support

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