Rotary Shaft Seal 70x105x13 NBR TC Oil Seal Double Lip

Rotary Shaft Seal 70x105x13 NBR TC - Double Lip Oil Seal

Rotary Shaft Seal 70x105x13 NBR TC is a double-lip radial shaft seal with dimensions 70x105x13 mm, manufactured from NBR (Nitrile Butadiene Rubber). The TC design incorporates a spring-loaded primary sealing lip, an additional dust lip and a rubber-covered outside diameter. It is designed for sealing rotating shafts while providing additional protection against external contamination.

Technical data

70x105x13 mm dimensions

The dimensions 70x105x13 mm define:

70 mm - nominal shaft diameter
105 mm - nominal housing bore diameter
13 mm - seal width

When selecting a replacement rotary shaft seal, all three dimensions must be checked together with the elastomer material and sealing-lip configuration.

What does NBR TC mean?

The designation identifies both the material and construction of the seal.

NBR means Nitrile Butadiene Rubber, an elastomer widely used for manufacturing rotary shaft seals.

TC identifies a double-lip construction with a spring-loaded primary sealing lip and an additional dust lip. This design also features a rubber-covered outside diameter.

TC double-lip design

The 70x105x13 NBR TC rotary shaft seal incorporates two lips with different functions.

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

The secondary dust lip is positioned towards the external environment and provides an additional barrier against dust and other contaminants approaching the primary sealing area.

This construction distinguishes a TC double-lip seal from an SC single-lip seal.

NBR - Nitrile Butadiene Rubber

NBR is one of the most commonly used elastomers in rotary shaft sealing technology.

It is widely used in sealing applications involving mineral oils and greases. However, actual compatibility depends on the specific medium and operating conditions.

When selecting an NBR seal, factors such as the sealed medium, operating temperature, shaft surface speed and environmental conditions should be considered.

TC vs SC oil seal

The primary difference between TC and SC designs is the presence of the additional dust lip.

TC - double-lip design with a spring-loaded primary sealing lip and an additional dust lip.

SC - single-lip design with a spring-loaded primary sealing lip and no additional dust lip.

Even when TC and SC seals have identical nominal dimensions, they should not automatically be considered technically interchangeable.

Function of the 70x105x13 TC seal

A rotary shaft seal is installed between a rotating shaft and a stationary housing.

The primary sealing lip helps retain a compatible lubricant or other medium within the operating area. The additional dust lip helps reduce the ingress of external contaminants towards the primary sealing zone.

The TC construction is therefore useful where an additional barrier against environmental contamination is required.

Alternative designations and search references

The product may also be encountered under the following descriptions:

• Rotary Shaft Seal 70x105x13 NBR TC
• Oil Seal 70x105x13 NBR TC
• NBR Oil Seal 70x105x13 TC
• Shaft Seal 70x105x13 NBR
• Double Lip Oil Seal 70x105x13
• 70x105x13 NBR TC
• 70x105x13 TC Oil Seal

The recommended English product name is:

Rotary Shaft Seal 70x105x13 NBR TC - Double Lip Oil Seal

Selecting a 70x105x13 NBR TC seal

Before ordering, verify:

• shaft diameter 70 mm
• housing bore diameter 105 mm
• width 13 mm
• NBR elastomer
• TC double-lip construction
• sealed medium
• operating temperature
• shaft surface speed
• condition of the shaft sealing surface
• requirements of the specific application

Matching the 70x105x13 mm dimensions alone does not guarantee full interchangeability with every other rotary shaft seal of the same size.

Installation

Before installation, thoroughly clean the shaft and housing bore. The shaft surface in contact with the primary sealing lip should be free from sharp edges, burrs and damage that could cut or prematurely wear the elastomer.

The seal should be pressed evenly into the housing without tilting or deformation.

The spring-loaded primary sealing lip should normally face the medium to be retained. When installing the seal over threads, splines, keyways or sharp shaft edges, the sealing lip should be protected against damage.

FAQ - Rotary Shaft Seal 70x105x13 NBR TC

What are the dimensions of this oil seal?

The seal has a 70 mm shaft diameter, 105 mm outside diameter and 13 mm width. Its complete dimensions are 70x105x13 mm.

What material is the seal made from?

The sealing element is manufactured from NBR (Nitrile Butadiene Rubber).

Is the 70x105x13 TC a double-lip oil seal?

Yes. The TC construction incorporates a spring-loaded primary sealing lip and an additional dust lip.

What does TC mean on a rotary shaft seal?

TC commonly identifies a double-lip rotary shaft seal with a spring-loaded primary lip, an additional dust lip and a rubber-covered outside diameter.

What is the purpose of the additional dust lip?

The secondary lip helps reduce the ingress of dust and other external contaminants towards the primary sealing area.

What is the difference between TC and SC?

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

Can any 70x105x13 oil seal be used as a replacement?

Not necessarily. In addition to dimensions, the elastomer, lip configuration, outside diameter construction and operating conditions must be considered.

Rotary Shaft Seal 70x105x13 NBR TC - key information

Rotary Shaft Seal 70x105x13 NBR TC is a double-lip radial shaft seal manufactured from NBR (Nitrile Butadiene Rubber). It has a spring-loaded primary sealing lip, an additional dust lip and a rubber-covered outside diameter. Its dimensions are 70x105x13 mm: 70 mm shaft diameter, 105 mm outside diameter and 13 mm width.

Available from simmering.pl, a specialist supplier of rotary shaft seals, bearings and industrial sealing solutions. Stock in Poland with worldwide shipping.