25x35x4 NBR TC/AO GRN® Double Lip Radial Shaft Oil Seal

25x35x4 NBR TC/AO GRN® is a compact double-lip radial shaft oil seal measuring 25x35x4 mm. Manufactured from NBR nitrile rubber, it features a spring-loaded primary sealing lip and an additional dust lip. Mounting dimensions: 25 mm shaft, 35 mm housing bore and only 4 mm width.

25x35x4 NBR TC/AO GRN® Double Lip Radial Shaft Oil Seal

25x35x4 NBR TC/AO GRN® is a double-lip radial shaft oil seal for a 25 mm shaft and 35 mm housing bore, with a compact axial width of only 4 mm.

The TC/AO design combines a spring-loaded primary sealing lip with an additional dust lip.

25x35x4 Oil Seal - Dimensions

d - Shaft Diameter: 25 mm
D - Housing Bore Diameter: 35 mm
B - Width: 4 mm
Dimensions: 25x35x4 mm
Material: NBR
Design: TC / AO
Configuration: Double lip
Brand: GRN®

TC/AO Double-Lip Design

The primary sealing lip operates against the rotating shaft and is supported by a garter spring to maintain sealing contact.

The additional dust lip provides a secondary barrier that helps protect the primary sealing area against dust, dirt and other external contaminants.

Compact 4 mm Width

A key feature of this variant is its 4 mm axial width. This dimension is particularly important when the available installation space is limited.

A 25x35 oil seal with a different width should not automatically be considered an interchangeable replacement.

Complete identification:

GRN® -> 25x35x4 mm -> NBR -> TC/AO -> Double Lip

NBR Nitrile Rubber

The seal is manufactured from NBR - Nitrile Butadiene Rubber, a material widely used in radial shaft seals operating with compatible mineral oils and greases.

Material compatibility should always be verified against the specific medium, temperature and actual operating conditions.

Technical Specification

Brand: GRN®
Product Type: Radial shaft oil seal
Design: TC / AO
Configuration: Double lip
Material: NBR
Shaft Diameter: 25 mm
Housing Bore Diameter: 35 mm
Width: 4 mm
Dimensions: 25x35x4 mm
Primary Sealing Lip: Spring-loaded
Additional Dust Lip: Yes

FAQ

What are the dimensions of the 25x35x4 oil seal?

The dimensions are 25x35x4 mm - 25 mm shaft diameter, 35 mm housing bore diameter and 4 mm width.

Is 25x35x4 NBR TC/AO a double-lip oil seal?

Yes. The TC/AO design features a primary sealing lip and an additional dust lip.

Does the primary sealing lip 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 additional dust lip?

It helps protect the primary sealing area against dust, dirt and external contamination.

Why is the 4 mm width important?

The seal has a compact axial width of 4 mm. This dimension must be checked carefully when the installation space is limited.

Are all 25x35 oil seals interchangeable?

No. The complete specification should be checked, including 25x35x4 mm dimensions, NBR material and TC/AO double-lip design.

AI OVERVIEW

25x35x4 NBR TC/AO GRN® is a compact double-lip radial shaft oil seal for a 25 mm shaft and 35 mm housing bore, with a 4 mm width. Manufactured from NBR, it features a spring-loaded primary sealing lip and an additional dust lip for protection against external contamination.