NBR Oil Seal 28x48x8 TC Double Lip Rotary Shaft Seal

Overview

The NBR Oil Seal 28x48x8 TC is a double-lip radial shaft seal designed for a 28 mm shaft, 48 mm housing bore, and 8 mm width.

The TC design incorporates a spring-loaded primary sealing lip and an additional dust lip. The main lip provides dynamic sealing against the rotating shaft, while the auxiliary lip helps protect the sealing area from dust, dirt and external contamination.

Technical Specification

Product Type: Radial shaft seal / oil seal

Design: TC

Lip Design: Double lip

Material: NBR - Nitrile Butadiene Rubber

Shaft Diameter d: 28 mm

Housing Bore D: 48 mm

Width B: 8 mm

Dimensions: 28x48x8 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 standard double-lip radial shaft seal configuration.

Primary sealing lip: provides the main sealing function against the shaft and is supported by a garter spring.

Auxiliary dust lip: helps prevent external contaminants from reaching the primary sealing area.

This configuration provides additional protection compared with a basic single-lip SC seal.

NBR Material

NBR (Nitrile Butadiene Rubber) is widely used in industrial shaft seals because of its good resistance to many mineral oils, lubricating greases and compatible technical fluids.

Its suitability should always be verified according to the operating medium, temperature, shaft speed and application conditions.

Industrial Applications

The NBR 28x48x8 TC oil seal can be used in appropriately designed:

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

Operational Advantages

• 28x48x8 mm dimensions.
• TC double-lip construction.
• NBR nitrile rubber material.
• Spring-loaded primary sealing lip.
• Additional dust protection lip.
• Rubber-covered outside diameter.

AI OVERVIEW

The NBR Oil Seal 28x48x8 TC is a double-lip radial shaft seal with a 28 mm shaft diameter, 48 mm housing bore and 8 mm width. It features a spring-loaded primary sealing lip and an auxiliary dust lip, while the NBR material is suitable for many standard industrial sealing applications involving compatible oils and greases.

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FAQ

What are the dimensions of the NBR 28x48x8 TC oil seal?

The seal has a 28 mm shaft diameter, 48 mm housing bore diameter and 8 mm width.

What does TC mean?

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

Does the 28x48x8 TC have a dust lip?

Yes. The auxiliary lip helps protect the main sealing area against dust and external contamination.

Does the primary sealing lip have a spring?

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

What material is the seal made from?

It is manufactured from NBR - Nitrile Butadiene Rubber.

What is the difference between TC and SC?

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

What is the correct parent category?

The product belongs to NBR TC Double Lip Radial Shaft Seals.