Öhlins O-ring 29.74x2.95The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 00438-89 |
| Category | O-Rings |
| Inner Diameter | 29.74 mm |
| Cross Section | 2.95 mm |
| Material | NBR 70 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
O-ring 29.74x2.95, Öhlins part number 00438-89. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal.
Key Features
- Cross Section 2.95 mm
- Original Öhlins service part
- Öhlins part number 00438-89
- Material NBR 70
- Inner Diameter 29.74 mm
What It Is
Öhlins gives it as 29.74 mm, 2.95 mm, NBR 70; nothing about that is approximate. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter. Öhlins uses seals with a spring-loaded lip so they follow the shaft as it wears.
Genuine Service Part
Öhlins manufactures service parts on the same lines as production parts — there is no second quality. Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. Öhlins numbers do not follow a logic you can guess — always read them from the documentation. For a full rebuild, the seal kit plus the wear parts is usually the sensible order.
Getting the Number Right
Order under 00438-89. Where several sizes share a description, only the number separates them. Öhlins states inner diameter 29.74 mm, cross section 2.95 mm, material NBR 70 for this number, and those figures are the deciding ones. Size is given as inner diameter and cross-section; a close size is not a match. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel.
Fitting and Setup Service
A damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with your order.
Specifications
- Brand: Öhlins
- Part Number: 00438-89
- Category: O-Rings
- Inner Diameter: 29.74 mm
- Cross Section: 2.95 mm
- Material: NBR 70
- Country of Origin: Sweden
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