Rotary Shaft Seal 44x62x7 NBR TC Oil Seal Double Lip

Rotary Shaft Seal 44x62x7 NBR TC GRN - Double Lip Oil Seal

GRN Rotary Shaft Seal 44x62x7 NBR TC is a double-lip radial shaft seal with dimensions 44x62x7 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

Dimensions of the 44x62x7 oil seal

The designation 44x62x7 mm defines the three basic dimensions:

44 mm - nominal shaft diameter
62 mm - nominal housing bore diameter
7 mm - seal width

When selecting a replacement, all three dimensions as well as the seal material and lip configuration should be verified.

What does NBR TC mean?

The designation identifies both the elastomer and the seal construction.

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

TC - double-lip rotary shaft seal design incorporating a spring-loaded primary sealing lip and an additional dust lip.

For this product, TC also identifies a design with a rubber-covered outside diameter.

Double-lip TC design

The GRN 44x62x7 NBR TC uses 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 additional dust lip is positioned on the external side of the seal and provides an additional barrier against dust and other contaminants approaching the primary sealing area.

The outside diameter is rubber-covered.

NBR - Nitrile Butadiene Rubber

NBR (Nitrile Butadiene Rubber) is one of the most widely used elastomers for rotary shaft seals.

NBR is commonly used in sealing applications involving mineral oils and greases. Actual material compatibility must nevertheless be evaluated against the specific medium, operating temperature, shaft speed and other operating conditions.

Material compatibility should not be assumed solely from the NBR designation without considering the actual application.

TC vs SC rotary shaft seal

An important distinction when selecting a rotary shaft seal is the number of sealing lips.

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.

Seals with identical dimensions may therefore have different constructions and should not automatically be considered interchangeable.

Function of the 44x62x7 rotary shaft 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 provides an extra barrier against external contamination reaching the primary sealing zone.

Alternative designations and search references

This product may also be encountered under several natural descriptions:

• GRN Rotary Shaft Seal 44x62x7 NBR TC
• Rotary Shaft Seal 44x62x7 NBR TC GRN
• GRN Oil Seal 44x62x7 NBR TC
• Oil Seal 44x62x7 NBR TC
• 44x62x7 NBR TC
• Double Lip Oil Seal 44x62x7
• Shaft Seal 44x62x7 NBR

The recommended English product name is:

Rotary Shaft Seal 44x62x7 NBR TC GRN - Double Lip Oil Seal

Selecting a GRN 44x62x7 NBR TC seal

Before ordering, verify:

• shaft diameter 44 mm
• housing bore diameter 62 mm
• width 7 mm
• NBR material
• TC double-lip design
• sealed medium
• operating temperature
• shaft surface speed
• condition of the shaft sealing surface
• requirements of the specific sealing arrangement

Matching the 44x62x7 mm dimensions alone does not guarantee full interchangeability with every other rotary shaft seal of the same size.

Installation

Before installation, clean the shaft and seal housing thoroughly. 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 into the housing evenly without tilting or deforming it.

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

FAQ - GRN Rotary Shaft Seal 44x62x7 NBR TC

What are the dimensions of the GRN 44x62x7 oil seal?

The seal has a 44 mm inside diameter, 62 mm outside diameter and 7 mm width. The complete dimensions are 44x62x7 mm.

What material is the seal made from?

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

Is the 44x62x7 TC a double-lip oil seal?

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

What does TC mean?

For this product, TC 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 lip?

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

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 44x62x7 oil seal be used as a replacement?

Not necessarily. In addition to dimensions, the elastomer, lip configuration, outside diameter design and operating requirements must be checked.

GRN Rotary Shaft Seal 44x62x7 NBR TC - key information

GRN Rotary Shaft Seal 44x62x7 NBR TC is a double-lip radial shaft seal manufactured from NBR. It has a spring-loaded primary sealing lip, an additional dust lip and a rubber-covered outside diameter. Dimensions are 44x62x7 mm: 44 mm shaft diameter, 62 mm outside diameter and 7 mm width.

GRN rotary shaft seals have been part of the TG Ersatzteile Polska product range since 2007. Available from simmering.pl, a specialist supplier of rotary shaft seals, bearings and industrial sealing solutions. Stock in Poland with worldwide shipping.