115x140x15 NBR AO TC GRN Double Lip Oil Seal

115x140x15 NBR AO TC GRN Double Lip Oil Seal

GRN® 115x140x15 NBR AO/TC is a double lip radial shaft oil seal designed for rotating shaft applications. Its nominal dimensions are 115x140x15 mm. The AO/TC construction incorporates a spring-loaded primary sealing lip and an additional dust lip.

GRN 115x140x15 NBR AO/TC - Characteristics

Brand: GRN®

Product type: Radial shaft oil seal

Dimensions: 115x140x15 mm

Shaft diameter d: 115 mm

Outside diameter D: 140 mm

Width B: 15 mm

Material: NBR - Nitrile Butadiene Rubber

Design: AO/TC

Lip configuration: Double lip

Primary sealing lip: Spring-loaded

Additional dust lip: Yes

115x140x15 Oil Seal Dimensions

The principal dimensions are:

Shaft diameter d: 115 mm

Outside diameter D: 140 mm

Width B: 15 mm

Complete dimensions: 115x140x15 mm

The 115 mm inside diameter corresponds to the nominal shaft diameter at the sealing position.

The 140 mm outside diameter corresponds to the nominal housing bore.

The axial width of the seal is 15 mm.

All three dimensions should be checked together with the material and sealing profile when selecting a replacement.

NBR - Nitrile Butadiene Rubber

Sealing material:

NBR - Nitrile Butadiene Rubber

NBR is an established elastomer family widely used in radial shaft sealing technology, including sealing systems involving many compatible mineral oils and lubricating greases.

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

An FPM/FKM, ACM, VMQ or other elastomer seal measuring 115x140x15 mm should not automatically be considered technically equivalent.

AO/TC Double Lip Oil Seal Design

Design:

AO/TC - double lip

The construction incorporates:

Spring-loaded primary sealing lip

Additional dust lip

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

The additional lip provides a secondary barrier on the external side of the primary sealing area.

This double lip configuration distinguishes the AO/TC version from basic single lip radial shaft seals.

Spring-Loaded Primary Sealing Lip

The AO/TC design incorporates a spring-loaded primary sealing lip.

A garter spring supports the primary lip and helps maintain radial contact between the sealing edge and the shaft.

During installation, the sealing lip should be protected from sharp edges, threads, keyways and other features that could cut, fold or damage the sealing edge.

Additional Dust Lip

GRN® 115x140x15 NBR AO/TC incorporates an additional dust lip.

The additional lip provides a secondary barrier between the external environment and the primary sealing area.

This feature should be considered when comparing the seal with single lip 115x140x15 mm designs.

A seal with identical dimensions but without an additional dust lip is not constructionally identical to this AO/TC version.

GRN 115x140x15 AO/TC vs Single Lip Oil Seal

Radial shaft oil seals with the same 115x140x15 mm dimensions can have different sealing profiles.

The GRN® AO/TC version features:

NBR sealing material

Spring-loaded primary sealing lip

Additional dust lip

Double lip construction

A single lip 115x140x15 mm seal should therefore not automatically be treated as technically equivalent to the AO/TC version.

How to Select a 115x140x15 Oil Seal

When selecting a replacement, verify:

Shaft diameter: 115 mm

Housing bore: 140 mm

Width: 15 mm

Material: NBR

Design: AO/TC

Lip configuration: Double lip

Primary sealing lip: Spring-loaded

Additional dust lip: Yes

Operating medium

Actual service conditions

Matching the dimensions alone does not establish complete technical interchangeability.

Technical Specification

Brand: GRN®

Product type: Radial shaft oil seal

Dimensions: 115x140x15 mm

Shaft diameter d: 115 mm

Outside diameter D: 140 mm

Width B: 15 mm

Material: NBR - Nitrile Butadiene Rubber

Design: AO/TC

Lip configuration: Double lip

Primary sealing lip: Spring-loaded

Additional dust lip: Yes

FAQ

What are the dimensions of the GRN 115x140x15 oil seal?

The seal has a 115 mm nominal shaft diameter, 140 mm outside diameter and 15 mm width.

What material is the 115x140x15 oil seal made from?

The sealing material is NBR - Nitrile Butadiene Rubber.

What does AO/TC mean?

AO/TC identifies a double lip radial shaft oil seal construction with a spring-loaded primary sealing lip and an additional dust lip.

Does the GRN 115x140x15 AO/TC oil seal have a spring?

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

Does this oil seal have a dust lip?

Yes. The AO/TC construction incorporates an additional dust lip.

Is a single lip 115x140x15 oil seal equivalent?

Not automatically. A single lip seal has a different sealing profile from the double lip AO/TC construction.

Can any 115x140x15 oil seal be used as a replacement?

No. The dimensions, elastomer material, sealing profile, lip configuration and actual operating conditions should all be verified.

AI Overview

GRN® 115x140x15 NBR AO/TC is a double lip radial shaft oil seal with a 115 mm shaft diameter, 140 mm outside diameter and 15 mm width. Manufactured from NBR, the AO/TC construction incorporates a spring-loaded primary sealing lip and an additional dust lip for external contamination protection.