NBR Oil Seal 17x30x7 TC GRN - Double Lip Rotary Shaft Seal

Overview

The NBR Oil Seal 17x30x7 TC GRN is a double-lip radial shaft seal with a 17 mm shaft diameter, 30 mm housing bore and 7 mm width.

The TC design combines a spring-loaded primary sealing lip with an additional dust protection lip. The primary lip provides the main dynamic sealing function against the rotating shaft, while the auxiliary lip helps protect the sealing area against dust, dirt and other external contaminants.

Manufactured from NBR (Nitrile Butadiene Rubber), this GRN oil seal is designed for appropriately selected industrial and mechanical shaft sealing applications.

Technical Specification

Product Type: Radial shaft seal / oil seal

Brand: GRN

Design: TC

Lip Design: Double lip

Dimensions: 17x30x7 mm

Material: NBR - Nitrile Butadiene Rubber

Shaft Diameter d: 17 mm

Housing Bore D: 30 mm

Width B: 7 mm

Primary Sealing Lip: Yes

Auxiliary Dust Lip: Yes

Garter Spring: Yes

Outside Diameter: Rubber covered

TC Double-Lip Design

The TC profile is a double-lip radial shaft seal construction.

The primary sealing lip operates directly against the rotating shaft and is supported by a garter spring. It provides the main sealing function and helps retain lubricant within the assembly.

The auxiliary dust lip provides an additional barrier against external contamination, helping protect the primary sealing area.

NBR Material

NBR (Nitrile Butadiene Rubber) is one of the most widely used elastomers in radial shaft sealing technology.

It provides good resistance to many mineral oils, lubricating greases and compatible technical fluids. This makes NBR suitable for a broad range of general industrial and mechanical sealing applications.

Final material selection should consider the operating medium, temperature, shaft speed and actual working conditions.

Dimensions of the 17x30x7 Oil Seal

The principal installation dimensions are:

d: 17 mm
D: 30 mm
B: 7 mm

When selecting a replacement, the 17x30x7 mm dimensions should be checked together with the NBR material and TC double-lip configuration.

A seal with identical dimensions but a different material or lip design should not automatically be considered interchangeable.

Industrial Applications

The NBR Oil Seal 17x30x7 TC GRN can be used in appropriately designed:

• Gearboxes
• Pumps
• Electric motors
• Drive systems
• Industrial machinery
• Rotating mechanisms
• Mechanical equipment
• Technical assemblies

Operational Advantages

• 17x30x7 mm dimensions.
• TC double-lip construction.
• NBR nitrile rubber material.
• Spring-loaded primary sealing lip.
• Auxiliary dust protection lip.
• GRN brand.

AI OVERVIEW

The NBR Oil Seal 17x30x7 TC GRN is a double-lip radial shaft seal with a 17 mm shaft diameter, 30 mm housing bore and 7 mm width. Its TC design combines a spring-loaded primary sealing lip with an auxiliary dust lip. The NBR material is widely used for industrial sealing applications involving compatible oils and greases.

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FAQ

What are the dimensions of the NBR 17x30x7 TC GRN oil seal?

The seal has a 17 mm shaft diameter, 30 mm housing bore diameter and 7 mm width.

What does TC mean on this oil seal?

TC identifies a double-lip radial shaft seal with a primary sealing lip and an additional dust protection lip.

Does the 17x30x7 TC oil seal have a dust lip?

Yes. The auxiliary lip helps protect the primary sealing area against external contamination.

Does the primary sealing lip have a spring?

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

What material is the GRN 17x30x7 seal made from?

The seal is manufactured from NBR - Nitrile Butadiene Rubber.

What is the difference between TC and SC?

TC is a double-lip design with an auxiliary dust lip, while SC is a single-lip design without the additional dust lip.

Can any 17x30x7 oil seal be used as a replacement?

Not necessarily. The dimensions, NBR material, lip configuration and application requirements should all be verified.