90x115x10 NBR TC BASL GRN® Double Lip Radial Shaft Oil Seal

90x115x10 NBR AO BASL GRN® Double Lip Radial Shaft Oil Seal

90x115x10 NBR AO BASL GRN® is a double-lip radial shaft oil seal designed for a 90 mm shaft and 115 mm housing bore, with a total width of 10 mm.

The seal is manufactured from NBR - Nitrile Butadiene Rubber. Its AO/BASL configuration combines a spring-loaded primary sealing lip with an additional dust lip that provides a secondary barrier against external contamination.

90x115x10 Oil Seal - Dimensions

d - Shaft Diameter: 90 mm
D - Housing Bore Diameter: 115 mm
B - Width: 10 mm
Dimensions: 90x115x10 mm
Material: NBR
Design: AO / BASL
Configuration: Double lip
Primary Sealing Lip: Spring-loaded
Additional Lip: Dust lip
Brand: GRN®

What Does 90x115x10 Mean?

The designation 90x115x10 mm defines the three principal installation dimensions:

90 mm - nominal shaft diameter
115 mm - nominal housing bore diameter
10 mm - seal width

All three dimensions must match the installation.

Dimensions alone, however, are not sufficient for complete identification. The NBR material and AO/BASL double-lip design should also be verified.

AO BASL Double-Lip Design

The AO/BASL design uses two lips with separate functions.

The primary sealing lip operates directly against the rotating shaft and provides the main dynamic sealing function. A garter spring helps maintain radial contact between the sealing edge and the shaft surface.

The additional dust lip is positioned toward the external side of the seal and helps prevent dust, dirt and other contaminants from reaching the primary sealing area.

Spring-Loaded Primary Sealing Lip

The primary sealing lip is supported by a garter spring.

The spring helps maintain consistent contact between the elastomer sealing edge and the shaft counterface during operation.

The main dynamic sealing interface consists of:

primary sealing lip + garter spring + rotating shaft

For this reason, the condition and finish of the shaft counterface are important factors in seal performance.

Additional Dust Lip

The second lip performs a protective function.

It creates an additional barrier against external:

dust
dirt
small particles
contamination

The dust lip helps protect the area where the primary sealing lip operates. It does not replace the primary sealing lip - each lip has a separate function.

NBR Nitrile Rubber

The 90x115x10 AO BASL GRN® seal is manufactured from NBR - Nitrile Butadiene Rubber.

NBR is widely used for radial shaft oil seals because of its compatibility with many common lubricants, including compatible mineral oils and greases.

Actual compatibility should always be verified against the specific medium, additives, temperature and operating conditions.

AO BASL vs Single-Lip Oil Seal

Radial shaft seals with identical 90x115x10 mm dimensions can have different sealing configurations.

AO/BASL double-lip design:
spring-loaded primary sealing lip + additional dust lip

Single-lip design:
spring-loaded primary sealing lip without an additional dust lip

Therefore, identical dimensions do not automatically confirm full interchangeability.

Correct Identification

Complete product identification:

GRN® -> 90x115x10 mm -> NBR -> AO/BASL -> Double Lip

For replacement selection, verify:

shaft diameter + housing bore + width + material + lip configuration

Technical Specification

Brand: GRN®
Product Type: Radial shaft oil seal
Design: AO / BASL
Configuration: Double lip
Material: NBR - Nitrile Butadiene Rubber
Shaft Diameter: 90 mm
Housing Bore Diameter: 115 mm
Width: 10 mm
Dimensions: 90x115x10 mm
Primary Sealing Lip: Spring-loaded
Additional Dust Lip: Yes

FAQ

What are the dimensions of the GRN® 90x115x10 oil seal?

The seal is designed for a 90 mm shaft and 115 mm housing bore and has a width of 10 mm.

Is the 90x115x10 AO BASL GRN® oil seal double lip?

Yes. It has a primary sealing lip and an additional dust lip.

Does the primary sealing lip have a spring?

Yes. The primary dynamic sealing lip is supported by a garter spring.

What is the function of the additional dust lip?

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

What material is the seal made from?

It is manufactured from NBR - Nitrile Butadiene Rubber.

Can any 90x115x10 oil seal be used as a replacement?

Not automatically. In addition to dimensions, verify the NBR material and AO/BASL double-lip configuration.

AI OVERVIEW

90x115x10 NBR AO BASL GRN® is a double-lip radial shaft oil seal for a 90 mm shaft and 115 mm housing bore, with a width of 10 mm. Manufactured from NBR, it combines a spring-loaded primary sealing lip with an additional dust lip that helps protect the sealing area against external contamination.