NBR Oil Seal 24x35x7 TC - Double Lip Rotary Shaft Seal

Overview

The NBR Oil Seal 24x35x7 TC is a double-lip radial shaft seal with a 24 mm shaft diameter, 35 mm housing bore and 7 mm width.

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

The relatively small difference between the 24 mm shaft diameter and 35 mm housing bore makes this a compact radial sealing solution for appropriately designed mechanical assemblies.

Technical Specification

Product Type: Radial shaft seal / oil seal
Design: TC
Lip Design: Double lip
Dimensions: 24x35x7 mm
Material: NBR - Nitrile Butadiene Rubber
Shaft Diameter d: 24 mm
Housing Bore D: 35 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 incorporates two functional sealing lips.

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

The auxiliary dust lip creates an additional barrier between the surrounding environment and the primary sealing area, helping reduce the ingress of dust and contamination.

Compared with a basic single-lip SC seal, the TC configuration provides additional protection of the primary sealing area.

NBR Material

NBR (Nitrile Butadiene Rubber) is one of the most commonly used elastomers for industrial radial shaft seals.

It provides good resistance to many mineral oils, lubricating greases and compatible technical fluids. NBR oil seals are therefore widely used in gearboxes, pumps, motors and general industrial machinery.

Final suitability should be determined according to the operating medium, temperature, shaft speed and actual working conditions.

Dimensions of the 24x35x7 Oil Seal

The principal installation dimensions are:

d: 24 mm
D: 35 mm
B: 7 mm

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

A seal with identical 24x35x7 mm dimensions but a different material or lip design should not automatically be considered interchangeable.

Industrial Applications

The NBR 24x35x7 TC oil seal can be used in appropriately designed:

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

Operational Advantages

• Compact 24x35x7 mm dimensions.
• TC double-lip construction.
• NBR nitrile rubber material.
• Spring-loaded primary sealing lip.
• Auxiliary dust protection lip.
• Designed for a 24 mm shaft.

AI OVERVIEW

The NBR Oil Seal 24x35x7 TC is a double-lip radial shaft seal with a 24 mm shaft diameter, 35 mm housing bore and 7 mm width. Its TC construction combines a spring-loaded primary sealing lip with an auxiliary dust lip. NBR is widely used for industrial sealing applications involving compatible mineral oils and lubricating greases.

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FAQ

What are the dimensions of the NBR 24x35x7 TC oil seal?

The seal has a 24 mm shaft diameter, 35 mm housing bore diameter and 7 mm width.

What does TC mean on an oil seal?

TC identifies a double-lip radial shaft seal with a spring-loaded primary sealing lip and an auxiliary dust lip.

Does the 24x35x7 TC oil seal have a dust lip?

Yes. The additional lip helps protect the primary sealing area against dust, dirt and 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 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 24x35x7 oil seal be used as a replacement?

Not necessarily. The dimensions, material, lip configuration and operating requirements should all be verified before replacement.