65x100x10 NBR TC GRN® Double Lip Radial Shaft Oil Seal

65x100x10 NBR AO GRN® Double Lip Radial Shaft Oil Seal

65x100x10 NBR AO GRN® is a double-lip radial shaft oil seal manufactured from NBR - Nitrile Butadiene Rubber.

Its installation dimensions are 65x100x10 mm: 65 mm nominal shaft diameter, 100 mm housing bore diameter and 10 mm seal width.

The AO design combines a spring-loaded primary sealing lip with an additional dust lip.

Complete identification:

GRN® -> 65x100x10 mm -> NBR -> AO -> Double Lip

65x100x10 Oil Seal - Dimensions

d - Shaft Diameter: 65 mm
D - Housing Bore Diameter: 100 mm
B - Width: 10 mm
Dimensions: 65x100x10 mm
Material: NBR - Nitrile Butadiene Rubber
Design: AO
Configuration: Double lip
Primary Sealing Lip: Spring-loaded
Additional Lip: Dust lip
Brand: GRN®

What Does 65x100x10 Mean?

The designation 65x100x10 mm defines the three principal installation dimensions:

65 mm - nominal shaft diameter
100 mm - nominal housing bore diameter
10 mm - seal width

All three dimensions should match the installation.

For complete identification, the NBR material and AO double-lip configuration should also be verified.

AO Double-Lip Design

The AO design incorporates two functional lips.

The primary sealing lip operates dynamically against the rotating shaft surface. A garter spring helps maintain radial contact between the elastomer sealing edge and the shaft counterface.

The additional dust lip forms a secondary protective barrier toward the external side and helps reduce the ingress of contamination into the primary sealing area.

This construction distinguishes the AO version from corresponding single-lip radial shaft oil seals.

Spring-Loaded Primary Sealing Lip

The primary dynamic sealing lip is supported by a garter spring.

The spring helps maintain contact between the sealing edge and the shaft counterface during operation.

The principal dynamic sealing interface consists of:

primary sealing lip + garter spring + shaft counterface

The condition and surface finish of the shaft in the sealing area are therefore important for proper seal operation.

Additional Dust Lip

The second lip performs a protective function.

It helps reduce the ingress of:

dust
dirt
small particles
external contamination

Its purpose is to help protect the area where the primary sealing lip operates.

The dust lip does not replace the primary dynamic sealing lip - each lip performs a separate function.

NBR Nitrile Rubber

The 65x100x10 AO GRN® oil seal is manufactured from NBR - Nitrile Butadiene Rubber.

NBR is widely used for radial shaft oil seals and is compatible with many commonly used mineral oils, lubricating greases and industrial lubricants.

Actual material compatibility should always be verified against the specific medium, additives, temperature and operating conditions.

65x100x10 AO vs Single-Lip Oil Seal

Radial shaft oil seals with identical 65x100x10 mm dimensions can have different sealing configurations.

65x100x10 NBR AO GRN®:
spring-loaded primary sealing lip
additional dust lip

Single-lip design:
spring-loaded primary sealing lip
no additional dust lip

Therefore, identical dimensions do not automatically confirm full interchangeability.

How to Select 65x100x10 NBR AO GRN®

For correct identification, verify:

Shaft Diameter: 65 mm
Housing Bore Diameter: 100 mm
Width: 10 mm
Material: NBR
Design: AO
Configuration: Double lip
Brand: GRN®

Complete identification:

65x100x10 + NBR + AO + GRN®

helps distinguish this version from other radial shaft oil seals with the same installation dimensions.

Technical Specification

Brand: GRN®
Product Type: Radial shaft oil seal
Design: AO
Configuration: Double lip
Material: NBR - Nitrile Butadiene Rubber
Shaft Diameter: 65 mm
Housing Bore Diameter: 100 mm
Width: 10 mm
Dimensions: 65x100x10 mm
Primary Sealing Lip: Spring-loaded
Additional Dust Lip: Yes

FAQ

What are the dimensions of the 65x100x10 NBR AO GRN® oil seal?

The seal has a 65 mm shaft diameter, 100 mm housing bore diameter and 10 mm width.

What shaft diameter is the 65x100x10 oil seal designed for?

It is designed for a nominal 65 mm shaft diameter.

What housing bore is required?

The nominal housing bore diameter is 100 mm.

Is the 65x100x10 NBR AO GRN® oil seal double lip?

Yes. The AO design combines a spring-loaded primary sealing lip with an additional dust lip.

Does the primary sealing lip have a spring?

Yes. A garter spring supports the primary sealing lip and helps maintain contact with the shaft counterface.

What is the purpose of the additional dust lip?

It helps protect the primary sealing area against dust, dirt, small particles and other external contamination.

What material is the 65x100x10 GRN® oil seal made from?

It is manufactured from NBR - Nitrile Butadiene Rubber.

Can any 65x100x10 oil seal be used as a replacement?

Not automatically. The dimensions, material and sealing-lip configuration should all be verified. This version is NBR with an AO double-lip design.

AI OVERVIEW

65x100x10 NBR AO GRN® is a double-lip radial shaft oil seal measuring 65x100x10 mm, designed for a 65 mm shaft and 100 mm housing bore. Manufactured from NBR, it combines a spring-loaded primary sealing lip with an additional dust lip that helps protect the primary sealing area against external contamination.