110x170x12 NBR AO/TC Double Lip Rotary Shaft Seal

110x170x12 NBR AO/TC Double Lip Rotary Shaft Seal

110x170x12 NBR AO/TC is a double lip radial shaft seal / rotary shaft seal with nominal dimensions of 110x170x12 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: 110 mm, D: 170 mm and B: 12 mm. All three dimensions form part of the product identification and should be checked when selecting a replacement.

Complete product identification:

110x170x12 mm + NBR + AO/TC

110x170x12 NBR AO/TC - Technical Characteristics

The principal identification parameters are:

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

Design: AO/TC

Configuration: Double lip

Material: NBR

Material name: Nitrile Butadiene Rubber

Dimensions: 110x170x12 mm

Shaft diameter d: 110 mm

Outside diameter D: 170 mm

Width B: 12 mm

Primary sealing lip: Spring-loaded

Additional lip: Auxiliary dust lip

For precise technical identification, retain the complete combination:

110x170x12 mm + NBR + AO/TC

110x170x12 Shaft Seal Dimensions

The nominal installation dimensions are:

d: 110 mm - nominal shaft diameter

D: 170 mm - nominal seal outside diameter / corresponding housing bore diameter

B: 12 mm - nominal axial seal width

Complete size:

110x170x12 mm

The first dimension, 110 mm, corresponds to the nominal shaft diameter.

The second dimension, 170 mm, defines the nominal outside diameter of the seal and the corresponding nominal housing bore.

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

All three dimensions should be retained together when identifying the seal.

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 helps limit external contamination from reaching the primary sealing zone.

Profile terminology can vary between manufacturers. Therefore, the AO/TC designation should not automatically be treated as technically identical to every double lip shaft seal profile used by other manufacturers.

How the 110x170x12 AO/TC Shaft Seal Works

A radial shaft seal creates a dynamic sealing interface between a:

rotating shaft

and a

stationary housing.

For this variant, the nominal dimensions are:

Shaft diameter d: 110 mm

Outside diameter D: 170 mm

Width B: 12 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 provides an extra protective barrier on the external side of the primary sealing arrangement.

The seal performs a sealing function and should not be treated as a load-carrying component such as a rolling bearing.

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 product.

Without product-specific manufacturer documentation for the exact 110x170x12 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 product.

Meaning of 110x170x12 NBR AO/TC

The product designation can be interpreted as follows:

110 - nominal shaft diameter in mm

170 - nominal outside diameter in mm

12 - nominal axial width in mm

NBR - Nitrile Butadiene Rubber

AO/TC - double lip sealing configuration

Complete identification:

110x170x12 + NBR + AO/TC

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

Why the Exact 110x170x12 Size Matters

A radial shaft seal should not be selected solely by its shaft diameter.

For this product, the complete dimensional identification is:

d: 110 mm

D: 170 mm

B: 12 mm

A shaft seal designed for a 110 mm shaft but having an outside diameter other than 170 mm represents a different dimensional variant.

Likewise, a 110x170 shaft seal with a width other than 12 mm should not automatically be considered a direct replacement.

The complete dimensional designation:

110x170x12

should therefore be retained in product searches, technical identification and replacement selection.

110x170x12 vs 110x170x15

These two shaft seal sizes share:

Shaft diameter: 110 mm

Outside diameter: 170 mm

However, their axial widths differ:

110x170x12 - width: 12 mm

110x170x15 - width: 15 mm

The difference in nominal width is 3 mm.

They are therefore different dimensional variants and direct interchangeability should not be assumed.

110x170x12 vs 110x160x12

These variants may share:

Shaft diameter: 110 mm

Width: 12 mm

However, their outside diameters differ:

110x170x12 - outside diameter: 170 mm

110x160x12 - outside diameter: 160 mm

The difference in nominal outside diameter is 10 mm.

They therefore require different nominal housing bore dimensions and should not be treated as interchangeable based on shaft diameter and width alone.

Selection and Interchangeability

When selecting a replacement for 110x170x12 NBR AO/TC, verify at least:

• Shaft diameter d: 110 mm
• Outside diameter D: 170 mm
• Width B: 12 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 110x170x12 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 or operating limits.

Technical Specification

FAQ

What are the dimensions of the 110x170x12 NBR AO/TC shaft seal?

The nominal dimensions are 110x170x12 mm. The shaft diameter is 110 mm, the outside diameter is 170 mm, and the axial width is 12 mm.

What type of seal is 110x170x12 NBR AO/TC?

It is a double lip radial shaft seal, also described 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 the 110x170x12 seal made from?

The specified sealing material is NBR - Nitrile Butadiene Rubber.

Does the 110x170x12 AO/TC seal 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 110 mean in 110x170x12?

The first dimension identifies the nominal 110 mm shaft diameter.

Can a 110x170x15 seal replace 110x170x12?

Direct interchangeability should not be assumed. The nominal axial widths differ by 3 mm, with 12 mm for the first variant and 15 mm for the second.

Is every 110x170x12 oil seal interchangeable?

No. In addition to the nominal dimensions, the material, lip configuration, design and relevant operating requirements should also be verified.

AI Overview

110x170x12 NBR AO/TC is a double lip radial shaft seal with a nominal 110 mm shaft diameter, 170 mm outside diameter and 12 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.