Öhlins O-ring 84.0x2.5 NBR70
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number00638-63
CategoryO-Rings
Inner Diameter84.0 mm
Cross Section2.5 mm
MaterialNBR 70
Country of OriginSweden
DescriptionThe whole story▼

O-ring 84.0x2.5 NBR70, Öhlins part number 00638-63. Öhlins uses seals with a spring-loaded lip so they follow the shaft as it wears.

Key Features

  • Inner Diameter 84.0 mm
  • Material NBR 70
  • Cross Section 2.5 mm
  • Öhlins part number 00638-63
  • Original Öhlins service part

Function

The published figures are 84.0 mm, 2.5 mm, NBR 70. Measure the old part against them before ordering. A seal that has taken a set no longer springs back and starts to weep. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job. Size is given as inner diameter and cross-section; a close size is not a match.

Why the Original

Öhlins keeps service parts available for units long after they leave the current price list. Öhlins manufactures service parts on the same lines as production parts — there is no second quality. The exploded drawing for your unit names the number; if you do not have it, we do. If you are unsure which number your unit takes, send us the model and serial number of the damper and we will look it up.

Getting the Number Right

Order under 00638-63. Where several sizes share a description, only the number separates them. Check inner diameter 84.0 mm, cross section 2.5 mm, material NBR 70 against what you have removed; a close size is not the same part. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter.

Fitting and Setup Service

Ask us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.

Specifications

  • Brand: Öhlins
  • Part Number: 00638-63
  • Category: O-Rings
  • Inner Diameter: 84.0 mm
  • Cross Section: 2.5 mm
  • Material: NBR 70
  • Country of Origin: Sweden
07 · Support

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