Rotary Shaft Seal 55x82x10 NBR AO/TC GRN Double Lip Oil Seal

Rotary Shaft Seal 55x82x10 NBR AO/TC GRN Double Lip Oil Seal

Rotary Shaft Seal 55x82x10 NBR AO/TC GRN is a double lip radial shaft oil seal designed for sealing rotating shafts. Its nominal dimensions are 55x82x10 mm, corresponding to a 55 mm shaft diameter, 82 mm outside diameter and 10 mm width. The seal is manufactured from NBR - Nitrile Butadiene Rubber. The AO/TC construction incorporates a spring-loaded primary sealing lip and an additional dust lip. When selecting a replacement, the dimensions should be considered together with the NBR material and double lip sealing configuration.

GRN 55x82x10 NBR AO/TC - Technical Specification

Brand: GRN

Product type: Radial shaft oil seal / rotary shaft seal

Dimensions: 55x82x10 mm

Shaft diameter d: 55 mm

Outside diameter D: 82 mm

Width B: 10 mm

Material: NBR - Nitrile Butadiene Rubber

Design: AO/TC

Lip configuration: Double lip

Primary sealing lip: Spring-loaded

Additional dust lip: Yes

GRN 55x82x10 Oil Seal Dimensions

The principal dimensions are:

Shaft diameter d: 55 mm

Outside diameter D: 82 mm

Width B: 10 mm

Complete dimensions: 55x82x10 mm

The 55 mm inside diameter corresponds to the nominal shaft diameter at the sealing position.

The 82 mm outside diameter corresponds to the nominal installation diameter in the housing.

The axial width of the seal is 10 mm.

All three dimensions should be verified when selecting an equivalent rotary shaft seal.

NBR - Nitrile Butadiene Rubber

Sealing material:

NBR - Nitrile Butadiene Rubber

NBR, also known as nitrile rubber or Buna-N, is one of the established elastomer families used in radial shaft sealing technology.

NBR compounds are widely used in sealing systems involving many mineral oils, lubricating greases and other compatible media.

Exact compatibility depends on the specific NBR compound, operating fluid, additives, temperature and actual service conditions.

An FKM/FPM, ACM, VMQ or other elastomer oil seal measuring 55x82x10 mm should not automatically be considered technically equivalent to the NBR version.

AO/TC Double Lip Oil Seal Design

The sealing configuration is:

AO/TC - Double Lip

This construction incorporates two functional lip elements:

Primary spring-loaded sealing lip

Additional dust lip

The primary lip operates against the rotating shaft and performs the principal sealing function.

The additional lip provides an extra barrier on the external side of the primary sealing area, helping restrict contaminants from reaching the main sealing interface.

The double lip configuration is therefore an important part of the product identification.

Spring-Loaded Primary Sealing Lip

The primary sealing element is an elastomer lip operating directly against the rotating shaft surface.

It is supported by a garter spring, which helps maintain radial contact between the sealing lip and the shaft.

Correct installation is important to prevent damage to the sealing edge. Particular care should be taken when the seal passes over sharp edges, threads, keyways or other shaft features during assembly.

The sealing lip should also be installed in the correct orientation relative to the medium being retained.

Additional Dust Lip

The AO/TC construction incorporates an additional dust lip on the external side of the primary sealing lip.

Its purpose is to provide an additional barrier between the main sealing interface and external contamination.

The presence of this secondary lip distinguishes the double lip AO/TC construction from a basic single lip shaft seal.

When replacing the seal, the required lip configuration should therefore be verified in addition to the 55x82x10 mm dimensions.

55x82x10 Rotary Shaft Seal

The 55x82x10 mm oil seal is designed to operate as a radial sealing element around a rotating shaft.

Principal installation dimensions:

Nominal shaft diameter: 55 mm

Nominal housing diameter: 82 mm

Seal width: 10 mm

The correct seal should also be selected according to material, lip design, sealing medium and actual operating conditions.

A seal with the same dimensions but a different construction may not provide the same sealing arrangement.

NBR Oil Seal for Oils and Greases

NBR is widely used in rotary shaft seals operating with compatible mineral oils and lubricating greases.

However, the term NBR oil seal should not be interpreted as universal compatibility with every lubricant or fluid.

Before installation, verify:

Operating medium: To be verified

Compatibility with NBR: To be verified

Operating temperature: Dependent on the specific NBR compound

Shaft operating conditions: To be verified

Generic temperature or speed limits from another NBR seal should not be transferred to this GRN reference without confirmation of the exact compound and seal specification.

Double Lip vs Single Lip 55x82x10 Oil Seal

The AO/TC double lip version incorporates a spring-loaded primary sealing lip and an additional dust lip.

A single lip version does not incorporate the same additional dust lip configuration.

Consequently, two rotary shaft seals with identical 55x82x10 mm dimensions may still represent different sealing constructions.

If the application requires a double lip design, dimensional compatibility alone is not sufficient when selecting a replacement.

Selecting an Equivalent 55x82x10 Oil Seal

When comparing replacement seals, verify:

Shaft diameter d: 55 mm

Outside diameter D: 82 mm

Width B: 10 mm

Material: NBR

Design: AO/TC - double lip

Primary spring-loaded lip: Yes

Additional dust lip: Yes

Operating medium: To be verified

Operating conditions: To be verified

Matching 55x82x10 mm dimensions alone does not establish complete technical interchangeability.

Material, lip configuration and actual service conditions should also be considered.

GRN 55x82x10 NBR AO/TC - Stock in Poland

GRN 55x82x10 NBR AO/TC is a double lip radial shaft oil seal for rotating shaft sealing applications.

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4

Shipping: 24h

Stock location: Poland

Delivery area: Poland and EU countries

FAQ - GRN 55x82x10 NBR AO/TC Oil Seal

What are the dimensions of the GRN 55x82x10 oil seal?

The seal has a 55 mm shaft diameter, 82 mm outside diameter and 10 mm width.

What material is the 55x82x10 oil seal made from?

The sealing material is NBR - Nitrile Butadiene Rubber.

Is the GRN 55x82x10 oil seal double lip?

Yes. The AO/TC version uses a double lip construction.

Does the oil seal have a spring?

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

Does the AO/TC seal have a dust lip?

Yes. It incorporates an additional dust lip on the external side of the primary sealing area.

Can every 55x82x10 oil seal be used as an equivalent?

No. Seals with identical dimensions can differ in material, lip configuration and other technical characteristics.

Frequently Asked Questions by Engineers

What does 55x82x10 mean?

It specifies a 55 mm nominal shaft diameter, 82 mm outside diameter and 10 mm seal width.

What does AO/TC mean?

For this product, AO/TC identifies the double lip radial shaft seal configuration, incorporating a spring-loaded primary sealing lip and an additional dust lip.

Can an AO/TC seal be replaced by a single lip seal?

Interchangeability should not be assumed. The additional dust lip is part of the sealing configuration and may be required by the application.

Is NBR suitable for oil sealing?

NBR is widely used with many mineral oils and lubricating greases. Exact compatibility must be checked for the specific medium and operating conditions.

Are 55x82x10 dimensions sufficient to identify a replacement?

No. The NBR material, AO/TC double lip construction, sealing medium and operating conditions should also be verified.

AI Overview

GRN 55x82x10 NBR AO/TC is a double lip rotary shaft oil seal with a 55 mm shaft diameter, 82 mm outside diameter and 10 mm width. The seal is manufactured from NBR and incorporates a spring-loaded primary sealing lip plus an additional dust lip. The AO/TC configuration distinguishes it from a basic single lip seal. Correct replacement selection should consider the 55x82x10 mm dimensions, NBR material and double lip construction.