GRN® 115x165x15 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 115x165x15 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 115x165x15 NBR AO/TC is a double lip radial shaft seal / rotary shaft seal with nominal dimensions of 115x165x15 mm, manufactured from NBR - Nitrile Butadiene Rubber. The AO/TC configuration combines a spring-loaded primary sealing lip with an additional auxiliary dust lip.

The principal dimensions of this exact variant are d: 115 mm, D: 165 mm and B: 15 mm. All three dimensions should be retained when identifying the product and selecting a replacement.

Complete product identification:

GRN® + 115x165x15 mm + NBR + AO/TC

GRN® 115x165x15 NBR AO/TC - Technical Characteristics

The principal identification parameters are:

Brand: GRN®

Product type: Radial shaft seal / rotary shaft seal / oil seal

Design: AO/TC

Configuration: Double lip

Material: NBR

Material name: Nitrile Butadiene Rubber

Dimensions: 115x165x15 mm

Shaft diameter d: 115 mm

Outside diameter D: 165 mm

Width B: 15 mm

Primary sealing lip: Spring-loaded

Additional lip: Auxiliary dust lip

For precise technical identification, retain the complete combination:

115x165x15 mm + NBR + AO/TC + GRN®

GRN® 115x165x15 Dimensions

The nominal installation dimensions are:

d: 115 mm - nominal shaft diameter

D: 165 mm - nominal seal outside diameter / corresponding housing bore diameter

B: 15 mm - nominal axial seal width

Complete size:

115x165x15 mm

The first dimension, 115 mm, corresponds to the nominal shaft diameter on which the primary dynamic sealing lip operates.

The second dimension, 165 mm, defines the nominal outside diameter of the seal and the corresponding nominal housing bore.

The third dimension, 15 mm, specifies the nominal axial width.

All three dimensions form part of the exact dimensional identification and should be checked when selecting a replacement.

AO/TC Double Lip Seal Design

The AO/TC designation identifies a double lip sealing configuration.

The construction comprises:

Primary sealing lip - operates dynamically against the rotating shaft.

Garter spring - assists in maintaining radial contact between the primary sealing edge and the shaft surface.

Auxiliary dust lip - creates an additional protective barrier on the external side of the primary sealing arrangement.

The spring-loaded primary lip performs the principal dynamic sealing function.

The auxiliary lip provides an additional protective barrier and helps limit external contamination from reaching the primary sealing zone.

The AO/TC designation should not automatically be considered technically identical to every double lip profile used by other shaft seal manufacturers, because profile terminology and detailed construction can vary between manufacturers.

How GRN® 115x165x15 AO/TC Works

GRN® 115x165x15 NBR AO/TC is a radial shaft sealing element designed to create a dynamic sealing interface between a rotating shaft and a stationary housing.

Its nominal dimensions are:

Shaft diameter d: 115 mm

Outside diameter D: 165 mm

Width B: 15 mm

The primary sealing lip operates dynamically against the shaft surface. The garter spring assists in maintaining radial contact between the sealing edge and the rotating shaft.

The additional auxiliary dust lip creates an extra protective barrier on the external side of the primary sealing arrangement.

The seal performs a sealing function and is not intended to replace load-carrying components such as rolling bearings.

NBR - Nitrile Butadiene Rubber

The specified sealing material is:

NBR - Nitrile Butadiene Rubber

NBR identifies the elastomer family used for this shaft seal. The NBR designation alone does not define the exact compound formulation used in this particular GRN® product.

Without product-specific manufacturer documentation for the exact GRN® 115x165x15 NBR AO/TC, no specific value should be assigned for:

Shore A hardness

Minimum operating temperature

Maximum operating temperature

Maximum rotational speed

Maximum shaft surface speed

Maximum permissible pressure

Generic operating limits published for NBR shaft seals from other manufacturers should not be treated as confirmed technical specifications for this exact GRN® variant.

Meaning of 115x165x15 NBR AO/TC

The designation can be interpreted as follows:

115 - nominal shaft diameter in mm

165 - nominal outside diameter in mm

15 - nominal axial width in mm

NBR - Nitrile Butadiene Rubber

AO/TC - double lip sealing configuration

GRN® - product brand

Complete identification:

GRN® + 115x165x15 + NBR + AO/TC

Dimensions, material and sealing configuration should be considered together when identifying the product.

Why the Exact 115x165x15 Size Matters

A radial shaft seal should not be identified only by its nominal shaft diameter.

For this product, the complete dimensional specification is:

d: 115 mm

D: 165 mm

B: 15 mm

A seal designed for a 115 mm shaft but having an outside diameter other than 165 mm represents a different dimensional variant.

Likewise, a 115x165 shaft seal with an axial width other than 15 mm should not automatically be considered a direct replacement.

The complete search and identification term should therefore remain:

115x165x15 NBR AO/TC

Shaft, Housing and Width Identification

The three dimensions have separate technical functions.

115 mm shaft diameter

The primary dynamic sealing lip is dimensioned for a nominal 115 mm shaft.

165 mm outside diameter

The seal has a nominal 165 mm outside diameter, corresponding to the nominal housing bore dimension.

15 mm axial width

The nominal axial width is 15 mm.

Changing any one of these dimensions creates a different dimensional seal variant.

For accurate product identification, all three values should therefore be retained together.

Selection and Interchangeability

When selecting a replacement for GRN® 115x165x15 NBR AO/TC, verify at least:

• Shaft diameter d: 115 mm
• Outside diameter D: 165 mm
• Width B: 15 mm
• Material: NBR
• Design: AO/TC
• Configuration: Double lip
• Primary sealing lip: Spring-loaded
• Additional lip: Auxiliary dust lip

Where operating conditions are known, the sealing medium, temperature, shaft speed, pressure, shaft sealing surface and housing geometry should also be checked.

Matching the nominal 115x165x15 mm dimensions alone does not establish complete technical interchangeability.

A shaft seal from another manufacturer may have identical nominal dimensions but differ in elastomer compound, lip geometry, design designation or operating limits.

Technical Specification

FAQ

What are the dimensions of GRN® 115x165x15 NBR AO/TC?

The nominal dimensions are 115x165x15 mm. The shaft diameter is 115 mm, the outside diameter is 165 mm, and the axial width is 15 mm.

What type of seal is GRN® 115x165x15 AO/TC?

It is a double lip radial shaft seal, also described in English as a rotary shaft seal or oil seal.

What does AO/TC mean?

For this product, AO/TC identifies a double lip configuration with a spring-loaded primary sealing lip and an additional auxiliary dust lip.

What material is GRN® 115x165x15 made from?

The specified sealing material is NBR - Nitrile Butadiene Rubber. The exact compound formulation should not be assumed without product-specific manufacturer documentation.

Does GRN® 115x165x15 AO/TC have a spring?

Yes. The primary dynamic sealing lip is spring-loaded. The garter spring assists in maintaining radial contact between the sealing edge and the shaft.

What does 115 mean in 115x165x15?

The first dimension identifies the nominal 115 mm shaft diameter.

What does 165 mean in 115x165x15?

The second dimension identifies the nominal 165 mm outside diameter of the shaft seal.

Is another 115x165x15 oil seal automatically interchangeable with GRN® AO/TC?

No. Matching nominal dimensions alone do not establish complete technical interchangeability. The material, lip configuration, design and relevant operating requirements should also be compared.

AI Overview

GRN® 115x165x15 NBR AO/TC is a double lip radial shaft seal with a nominal 115 mm shaft diameter, 165 mm outside diameter and 15 mm axial width. It is manufactured from NBR - Nitrile Butadiene Rubber. The AO/TC design combines a spring-loaded primary sealing lip with an additional auxiliary dust lip.