30x62x10 NBR AO/TC GRN® Double Lip Radial Shaft Oil Seal

30x62x10 NBR AO/TC GRN® Double Lip Radial Shaft Oil Seal

30x62x10 NBR AO/TC GRN® is a double-lip radial shaft oil seal measuring 30x62x10 mm, manufactured from NBR - Nitrile Butadiene Rubber.

It is designed for a 30 mm shaft and 62 mm housing bore, with a total width of 10 mm. The AO/TC configuration combines a spring-loaded primary sealing lip with an additional dust lip.

30x62x10 Oil Seal - Dimensions

d - Shaft Diameter: 30 mm
D - Housing Bore Diameter: 62 mm
B - Width: 10 mm
Dimensions: 30x62x10 mm
Material: NBR - Nitrile Butadiene Rubber
Design: AO / TC
Configuration: Double lip
Primary Sealing Lip: Spring-loaded
Additional Lip: Dust lip
Brand: GRN®

AO/TC Double-Lip Design

The AO/TC design uses two functional lips with separate sealing and protective functions.

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

The additional dust lip forms a secondary barrier on the external side and helps limit the ingress of dust, dirt and other contaminants into the primary sealing area.

What Does 30x62x10 Mean?

The designation 30x62x10 mm defines the three principal installation dimensions:

30 mm - nominal shaft diameter
62 mm - nominal housing bore diameter
10 mm - seal width

Complete identification:

GRN® -> 30x62x10 mm -> NBR -> AO/TC -> Double Lip

Dimensions alone do not define the complete sealing configuration. The material and lip design should also be verified.

Spring-Loaded Primary Sealing Lip

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

The spring helps maintain consistent contact between the elastomer sealing edge and the rotating shaft surface.

The principal dynamic sealing interface consists of:

primary sealing lip + garter spring + shaft counterface

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

Additional Dust Lip

The second lip performs a protective function.

It helps limit the ingress of:

dust
dirt
small particles
external contamination

The dust lip helps protect the area where the primary sealing lip operates. It does not replace the primary sealing lip - each lip performs a different function.

NBR Nitrile Rubber

The 30x62x10 AO/TC GRN® seal is manufactured from NBR - Nitrile Butadiene Rubber.

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

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

30x62x10 Double Lip vs Single Lip Oil Seal

Radial shaft seals with identical 30x62x10 mm dimensions can have different lip configurations.

AO/TC double-lip design:
spring-loaded primary sealing lip + additional dust lip

Single-lip design:
primary sealing lip without an additional dust lip

Therefore, identical dimensions do not automatically confirm full interchangeability.

Correct Identification

Complete product identification:

GRN® -> 30x62x10 mm -> NBR -> AO/TC -> Double Lip

When selecting a replacement, verify:

shaft diameter + housing bore + width + material + lip configuration

This helps distinguish the correct AO/TC version from other 30x62x10 radial shaft seals.

Technical Specification

Brand: GRN®
Product Type: Radial shaft oil seal
Design: AO / TC
Configuration: Double lip
Material: NBR - Nitrile Butadiene Rubber
Shaft Diameter: 30 mm
Housing Bore Diameter: 62 mm
Width: 10 mm
Dimensions: 30x62x10 mm
Primary Sealing Lip: Spring-loaded
Additional Dust Lip: Yes

FAQ

What are the dimensions of the GRN® 30x62x10 oil seal?

The seal is designed for a 30 mm shaft and 62 mm housing bore and has a width of 10 mm.

Is the 30x62x10 NBR AO/TC GRN® oil seal double lip?

Yes. It has a spring-loaded primary sealing lip and an additional dust lip.

Does the primary sealing lip have a spring?

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

What is the function of the additional dust lip?

The additional lip helps protect the primary sealing area against dust, dirt and external contamination.

What material is the 30x62x10 GRN® oil seal made from?

It is manufactured from NBR - Nitrile Butadiene Rubber.

What does 30x62x10 mean?

It specifies a 30 mm shaft diameter, 62 mm housing bore diameter and 10 mm seal width.

Can any 30x62x10 oil seal be used as a replacement?

Not automatically. In addition to the dimensions, the material and lip configuration should be verified. This version is NBR with an AO/TC double-lip design.

AI OVERVIEW

30x62x10 NBR AO/TC GRN® is a double-lip radial shaft oil seal for a 30 mm shaft and 62 mm housing bore, with a width of 10 mm. 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.