32x48x8 NBR 70 ShA AO/TC Double Lip Radial Shaft Oil Seal

32x48x8 NBR 70 ShA AO/TC is a double-lip radial shaft oil seal for a 32 mm shaft and 48 mm housing bore, with a width of 8 mm. Manufactured from NBR nitrile rubber with a hardness of 70 Shore A. The AO/TC design features a spring-loaded primary sealing lip and an additional dust lip for protection against external contamination.

32x48x8 NBR 70 ShA AO/TC Double Lip Radial Shaft Oil Seal

32x48x8 NBR 70 ShA AO/TC is a double-lip radial shaft oil seal manufactured from NBR - Nitrile Butadiene Rubber. It is designed for a 32 mm shaft and 48 mm housing bore and has a width of 8 mm.

32x48x8 Oil Seal - Dimensions

d - Shaft Diameter: 32 mm
D - Housing Bore Diameter: 48 mm
B - Width: 8 mm
Dimensions: 32x48x8 mm
Material: NBR
Hardness: 70 Shore A
Design: AO/TC

AO/TC Double-Lip Design

The AO/TC configuration combines two functional sealing lips:

Spring-loaded primary sealing lip - maintains sealing contact with the rotating shaft.

Additional dust lip - helps prevent dust, dirt and other external contaminants from reaching the primary sealing area.

This additional protective lip distinguishes the AO/TC configuration from a corresponding single-lip radial shaft seal.

NBR 70 Shore A

The seal is manufactured from NBR nitrile rubber with a nominal hardness of 70 Shore A.

NBR is widely used in radial shaft sealing applications involving mineral oils and greases. Compatibility should always be verified for the specific operating medium and conditions.

How to Select a 32x48x8 Oil Seal

For correct identification, verify the complete specification:

32x48x8 mm + NBR 70 ShA + AO/TC

Matching dimensions alone do not guarantee full interchangeability. Material, hardness and sealing lip design should also correspond to the application requirements.

Technical Specification

Product Type: Radial shaft oil seal
Configuration: Double lip
Dimensions: 32x48x8 mm
Shaft Diameter: 32 mm
Housing Bore Diameter: 48 mm
Width: 8 mm
Material: NBR
Hardness: 70 Shore A
Design: AO/TC
Primary Sealing Lip: Spring-loaded
Additional Dust Lip: Yes

FAQ

What does 32x48x8 mean?

The seal fits a 32 mm shaft and 48 mm housing bore and has a width of 8 mm.

What does NBR 70 ShA mean?

NBR stands for Nitrile Butadiene Rubber, while 70 ShA specifies the nominal elastomer hardness on the Shore A scale.

What does AO/TC mean?

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

Does the 32x48x8 oil seal have a spring?

Yes. The primary sealing lip is supported by a garter spring to maintain sealing contact with the shaft.

What is the purpose of the second lip?

The additional dust lip helps protect the main sealing area against dust, dirt and external contamination.

AI OVERVIEW

32x48x8 NBR 70 ShA AO/TC is a double-lip radial shaft oil seal for a 32 mm shaft and 48 mm housing bore, with an 8 mm width. It is manufactured from NBR with a hardness of 70 Shore A and features a spring-loaded primary sealing lip plus an additional dust lip.