Öhlins O-ring 41.5x3 NBR70The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 00338-84 |
| Category | O-Rings |
| Inner Diameter | 41.5 mm |
| Cross Section | 3 mm |
| Material | NBR 70 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
O-ring 41.5x3 NBR70, Öhlins part number 00338-84. Static seals and dynamic seals are not interchangeable even in the same size.
Key Features
- Original Öhlins service part
- Material NBR 70
- Inner Diameter 41.5 mm
- Öhlins part number 00338-84
- Cross Section 3 mm
What It Is
Öhlins publishes 41.5 mm, 3 mm, NBR 70 for 00338-84 — the dimensions are the identity of the part. Size is given as inner diameter and cross-section; a close size is not a match. Seals are the part of a damper that decides whether it holds its gas charge and its oil, and they are the usual reason a unit ends up on the bench. Öhlins recommends replacing seals whenever the unit is opened, not only when it leaks.
Why the Original
Parts remain available years after a unit leaves the current price list, which is unusual in this trade. The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Order by part number. The dimensions below are the ones Öhlins publishes for it. Öhlins parts are unit-specific: a close dimension is not a substitute.
Identifying the Right Part
Öhlins identifies this position by the number 00338-84 in the exploded view for the unit it belongs to. The published dimensions are inner diameter 41.5 mm, cross section 3 mm, material NBR 70 — measure the old part against them if you are unsure. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. Öhlins uses seals with a spring-loaded lip so they follow the shaft as it wears.
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: 00338-84
- Category: O-Rings
- Inner Diameter: 41.5 mm
- Cross Section: 3 mm
- Material: NBR 70
- Country of Origin: Sweden
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