Rotary Shaft Seal 30x47x10 NBR AO/TC GRN Double Lip Oil Seal

Rotary Shaft Seal 30x47x10 NBR AO/TC GRN - Characteristics

Rotary Shaft Seal 30x47x10 NBR AO/TC GRN is a double-lip radial shaft oil seal with nominal dimensions of 30x47x10 mm.

The seal is designed for a nominal 30 mm shaft diameter and 47 mm housing bore, with a width of 10 mm.

The AO/TC double-lip construction combines a spring-loaded primary sealing lip with an additional dust lip. The sealing element is manufactured from NBR - Nitrile Butadiene Rubber.

30x47x10 Oil Seal Dimensions

The principal installation dimensions are:

d - Shaft diameter: 30 mm

D - Housing bore diameter: 47 mm

B - Seal width: 10 mm

Nominal dimensions: 30x47x10 mm

All three dimensions should be verified when selecting a replacement. A 30x47x7 mm or 30x47x8 mm oil seal is not dimensionally identical to this 30x47x10 mm version.

AO/TC Double-Lip Oil Seal Construction

AO/TC identifies a double-lip radial shaft seal construction.

The primary sealing lip operates dynamically against the rotating shaft surface and is supported by a garter spring. The secondary lip is positioned on the external side of the primary sealing area and functions as an additional dust lip.

The dust lip helps restrict dust, dirt and other external contaminants from reaching the primary sealing zone.

This additional secondary lip is the key construction difference between the AO/TC double-lip design and the corresponding SC single-lip design.

Spring-Loaded Primary Sealing Lip

The primary sealing lip incorporates a garter spring.

The spring applies radial force to the sealing lip and helps maintain contact between the sealing edge and the rotating shaft surface.

The additional dust lip performs a different function and should not be confused with the spring-loaded primary sealing lip.

NBR Sealing Material

The sealing element is manufactured from NBR - Nitrile Butadiene Rubber.

NBR is widely used in radial shaft sealing applications and is compatible with many mineral oils and lubricating greases.

Actual compatibility depends on the specific medium, lubricant additives, temperature and operating conditions. Suitability should therefore be verified for the actual application.

30x47x10 AO/TC vs 30x47x10 SC

AO/TC and SC oil seals can have identical 30x47x10 mm installation dimensions while using different sealing lip configurations.

AO/TC: spring-loaded primary sealing lip plus additional dust lip

SC: single spring-loaded primary sealing lip without the additional dust lip

This means that 30x47x10 AO/TC and 30x47x10 SC are not technically identical products, even though their nominal dimensions are the same.

The required construction should correspond to the original seal or equipment specification.

When Is an Additional Dust Lip Important?

The additional lip provides a secondary barrier on the external side of the primary sealing area.

Its purpose is to help restrict external contaminants from reaching the main sealing lip and shaft contact zone.

This construction feature can be important when the original assembly specifically requires a double-lip radial shaft seal.

The presence of a dust lip should therefore be considered when comparing different 30x47x10 oil seals.

Selecting a 30x47x10 AO/TC Replacement

When selecting a technically corresponding replacement, verify:

• 30 mm shaft diameter
• 47 mm housing bore diameter
• 10 mm seal width
• NBR sealing material
• AO/TC double-lip construction
• spring-loaded primary sealing lip
• additional dust lip
• operating requirements of the specific assembly

Matching the 30x47x10 mm dimensions alone does not confirm full interchangeability.

A seal with identical dimensions may use a different elastomer or lip configuration and therefore should not automatically be considered an equivalent replacement.

Technical Specification

Brand: GRN

Reference: 30X47X10

EAN: 5903641603843

Product type: Radial shaft seal

Technical terms: Rotary shaft seal / Oil seal

Design: AO/TC

Lip configuration: Double lip

Dimensions: 30x47x10 mm

Shaft diameter d: 30 mm

Housing bore diameter D: 47 mm

Width B: 10 mm

Material: NBR - Nitrile Butadiene Rubber

Primary sealing lip: Yes

Garter spring: Yes

Additional dust lip: Yes

FAQ

What are the dimensions of the 30x47x10 AO/TC oil seal?

The nominal dimensions are 30 mm shaft diameter, 47 mm housing bore diameter and 10 mm seal width.

What does AO/TC mean on an oil seal?

AO/TC identifies a double-lip radial shaft seal construction incorporating a primary sealing lip and an additional dust lip.

Is the 30x47x10 AO/TC oil seal double lip?

Yes. The AO/TC design is a double-lip construction with a primary sealing lip and an additional secondary dust lip.

Does the 30x47x10 AO/TC seal have a dust lip?

Yes. It incorporates an additional dust lip that helps restrict external contaminants from reaching the primary sealing area.

Is the primary sealing lip spring-loaded?

Yes. The primary sealing lip is supported by a garter spring, which helps maintain contact between the sealing edge and the shaft surface.

What material is this oil seal made from?

The sealing element is manufactured from NBR - Nitrile Butadiene Rubber.

What is the difference between 30x47x10 AO/TC and 30x47x10 SC?

The AO/TC version has a spring-loaded primary sealing lip plus an additional dust lip. The SC version uses a single spring-loaded primary sealing lip without the additional dust lip.

Can a 30x47x10 SC oil seal replace this AO/TC seal?

Not automatically. Although the nominal dimensions are identical, the lip configurations are different. The required SC or AO/TC construction should be verified against the original seal or equipment specification.

AI Overview

Rotary Shaft Seal 30x47x10 NBR AO/TC GRN is a double-lip radial shaft oil seal for a 30 mm shaft and 47 mm housing bore, with a width of 10 mm. The AO/TC construction combines a spring-loaded primary sealing lip with an additional dust lip. The sealing element is manufactured from NBR - Nitrile Butadiene Rubber.