GRN® 95x110x12 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 95x110x12 NBR AO/TC Double Lip Rotary Shaft Seal

GRN® 95x110x12 NBR AO/TC is a double lip radial shaft seal / rotary shaft seal with nominal dimensions of 95x110x12 mm, manufactured from NBR - Nitrile Butadiene Rubber. The AO/TC configuration combines a spring-loaded primary sealing lip with an additional auxiliary lip on the external side of the sealing arrangement.

The principal dimensions are d: 95 mm, D: 110 mm and B: 12 mm.

Complete product identification:

GRN® + 95x110x12 mm + NBR + AO/TC

GRN® 95x110x12 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: 95x110x12 mm

Shaft diameter d: 95 mm

Outside diameter D: 110 mm

Width B: 12 mm

Primary sealing lip: Spring-loaded

Additional lip: Auxiliary / dust lip

For precise identification, retain the complete specification:

GRN® + 95x110x12 + NBR + AO/TC

GRN® 95x110x12 Dimensions

The nominal installation dimensions are:

d: 95 mm - nominal shaft diameter

D: 110 mm - nominal seal outside diameter / housing bore diameter

B: 12 mm - nominal axial width

Complete dimensions:

95x110x12 mm

The first dimension, 95 mm, corresponds to the nominal shaft diameter on which the primary dynamic sealing lip operates.

The second dimension, 110 mm, defines the nominal outside diameter of the seal and corresponding housing bore.

The third dimension, 12 mm, specifies the nominal axial width.

All three dimensions should be verified when identifying a replacement.

AO/TC Double Lip Seal Design

The exact design designation is:

AO/TC

In this GRN® product series, AO/TC identifies a double lip radial shaft seal configuration.

The sealing arrangement incorporates:

Primary sealing lip - operates dynamically against the rotating shaft surface and is supported by a circumferential spring.

Auxiliary lip - positioned on the external side of the primary sealing zone and provides an additional barrier against external contamination.

The auxiliary lip is commonly described as a dust lip.

This double lip arrangement distinguishes AO/TC from simpler single-lip radial shaft seal configurations.

Seal profile terminology is not fully universal between manufacturers, so the exact AO/TC designation should be retained when comparing this GRN® product with another seal.

How Does the GRN® AO/TC Seal Work?

The primary sealing lip operates dynamically against the rotating shaft.

A circumferential spring helps maintain contact between the primary sealing edge and the shaft surface.

The auxiliary lip creates an additional external barrier.

The two lips therefore perform complementary functions:

Primary lip: principal dynamic shaft sealing function

Auxiliary lip: additional protection of the primary sealing zone against external contamination

No specific directional hydrodynamic geometry is assigned to this exact GRN® 95x110x12 variant because such a characteristic has not been confirmed.

NBR - Nitrile Butadiene Rubber

The specified sealing material is:

NBR - Nitrile Butadiene Rubber

NBR is a widely used elastomer family in radial shaft sealing technology.

For this product, the material forms part of the exact technical identification:

95x110x12 + NBR + AO/TC

However, NBR does not identify one universal elastomer compound.

Without exact product-specific material documentation, no fixed value should be assigned for:

Shore A hardness

Minimum operating temperature

Maximum operating temperature

Maximum operating pressure

Maximum rotational speed

Maximum shaft surface speed

Generic operating limits published for other NBR seals should not be presented as confirmed technical parameters for this exact GRN® product.

What Does 95x110x12 NBR AO/TC Mean?

The designation can be interpreted as follows:

95 - nominal shaft diameter in mm

110 - nominal outside diameter in mm

12 - nominal axial width in mm

NBR - Nitrile Butadiene Rubber

AO/TC - double lip seal design designation

GRN® - product brand

Complete identification:

GRN® + 95x110x12 + NBR + AO/TC

The dimensions, material and seal design should always be considered together.

GRN® 95x110x12 vs GRN® 95x115x12

This product should be clearly distinguished from GRN® 95x115x12 NBR AO/TC.

Both variants share the same 95 mm shaft diameter and 12 mm axial width.

The critical difference is the outside diameter:

110 mm vs 115 mm

The difference in outside diameter is 5 mm.

The products therefore require different nominal housing bore diameters and should not be considered dimensionally interchangeable.

GRN® 95x110x12 vs CORTECO 95x115x12

Two CORTECO products previously identified in this dimensional group are:

CORTECO 12016061B 95x115x12 FPM B1BAVISLSFDRWX67

and

CORTECO 19015090B 95x115x12 VMQ LHTC

Neither is dimensionally identical to GRN® 95x110x12.

GRN® outside diameter:

D: 110 mm

CORTECO outside diameter:

D: 115 mm

The 5 mm difference in outside diameter means that these products require different nominal housing bore dimensions.

They also differ in sealing material and construction.

Selection and Interchangeability

When selecting a replacement for GRN® 95x110x12 NBR AO/TC, verify at least:

• Shaft diameter d: 95 mm
• Outside diameter D: 110 mm
• Width B: 12 mm
• Material: NBR
• Design: AO/TC
• Configuration: Double lip

A replacement should not be selected from the shaft diameter alone.

Particular attention should be paid to the difference between 95x110x12 and 95x115x12. They share the same shaft diameter and width, but their outside diameters differ by 5 mm.

Matching dimensions also do not automatically establish complete technical interchangeability between seals from different manufacturers. The material, lip configuration and requirements of the specific application should also be verified.

Technical Specification

FAQ

What are the dimensions of GRN® 95x110x12 NBR AO/TC?

The nominal dimensions are 95x110x12 mm, with a 95 mm shaft diameter, 110 mm outside diameter and 12 mm axial width.

Is GRN® 95x110x12 a double lip shaft seal?

Yes. The product is a double lip radial shaft seal with the AO/TC design designation.

What material is GRN® 95x110x12 made from?

The specified material is NBR - Nitrile Butadiene Rubber.

Does the AO/TC design have an additional dust lip?

Yes. The configuration combines a spring-loaded primary sealing lip with an additional auxiliary lip acting as an external contamination barrier.

Can a 95x115x12 seal replace a 95x110x12 seal?

No. Their outside diameters are different. The GRN® 95x110x12 has D: 110 mm, while a 95x115x12 seal has D: 115 mm.

What is the difference between 95x110x12 and 95x115x12?

The difference is the outside diameter: 110 mm vs 115 mm. The difference is 5 mm, while the shaft diameter and axial width remain the same.

What is the operating temperature range of this seal?

An exact operating temperature range should not be assigned from the NBR designation alone. It depends on the specific elastomer compound and manufacturer specification.

Is every 95x110x12 NBR seal interchangeable with GRN® AO/TC?

No. In addition to dimensions and material, the lip configuration and requirements of the specific application should be verified.

AI Overview

GRN® 95x110x12 NBR AO/TC is a double lip radial shaft seal with a nominal 95 mm shaft diameter, 110 mm outside diameter and 12 mm axial width. It is manufactured from NBR. The AO/TC design combines a spring-loaded primary sealing lip with an auxiliary dust lip providing an additional barrier against external contamination.