Rotary Shaft Seal 110x150x8 NBR BABSL - Double Lip Oil Seal

Rotary Shaft Seal 110x150x8 NBR BABSL - Double Lip Oil Seal

Rotary Shaft Seal 110x150x8 NBR BABSL is a double-lip radial shaft seal with dimensions 110x150x8 mm, manufactured from NBR (Nitrile Butadiene Rubber). The BABSL design features a spring-loaded primary sealing lip and an additional protective lip. The elastomer-covered outside diameter provides static sealing between the seal and the housing bore.

Technical data

What does 110x150x8 mm mean?

The dimensions specify the nominal installation size of the rotary shaft seal:

110 mm - nominal shaft diameter.

150 mm - nominal housing bore diameter.

8 mm - axial width of the seal.

When selecting a replacement, all three dimensions must be verified together with the elastomer material and the exact seal design.

What does BABSL mean?

BABSL is a design designation for a radial shaft seal incorporating an elastomer-covered outside diameter, a spring-loaded primary sealing lip and an additional protective lip.

The construction includes:

• primary sealing lip

• garter spring supporting the primary sealing lip

• additional protective lip

• elastomer-covered outside diameter

• internal metal reinforcement

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

Seal nomenclature can vary between manufacturers. For this reason, an equivalent seal should not be selected solely on the basis of a similar designation. The actual geometry, material, dimensions and operating requirements should also be compared.

NBR material

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

NBR provides good resistance to many mineral oils and greases as well as good wear resistance. It is therefore widely used in conventional industrial sealing systems lubricated with oil or grease.

Material selection should always take into account the specific medium, operating temperature, shaft surface speed and other operating conditions.

Double-lip BABSL design

In the 110x150x8 NBR BABSL rotary shaft seal, the primary sealing lip operates directly against the surface of the rotating shaft. A garter spring maintains the required contact pressure between the sealing lip and the shaft.

The additional lip provides a protective function by helping to reduce the ingress of external contaminants into the area of the primary sealing lip.

The elastomer-covered outside diameter provides static sealing between the outer surface of the oil seal and the housing bore.

BABSL vs single-lip oil seal

The main difference is the presence of the additional lip.

BABSL - design with a spring-loaded primary sealing lip and an additional protective lip.

Single-lip design - incorporates the primary sealing lip without an additional protective lip.

For this reason, two seals with identical 110x150x8 mm dimensions are not necessarily technically equivalent.

Selecting a 110x150x8 NBR BABSL oil seal

Before purchasing or selecting a replacement, verify:

• 110 mm shaft diameter

• 150 mm housing bore diameter

• 8 mm width

• NBR material

• BABSL design

• presence of the additional protective lip

• sealed medium

• operating temperature

• shaft surface speed

• condition of the shaft sealing surface

• lubrication conditions

• required protection against external contamination

Matching the 110x150x8 mm dimensions alone does not guarantee full interchangeability.

Installation and operation

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, corrosion and damage.

During installation, protect the sealing lip against cutting, folding or other mechanical damage. The seal should be pressed evenly into the housing without tilting.

The primary sealing lip should face the medium being retained, according to the design of the specific sealing arrangement.

FAQ - Rotary Shaft Seal 110x150x8 NBR BABSL

What are the dimensions of the BABSL oil seal?

The seal has a nominal shaft diameter of 110 mm, housing bore diameter of 150 mm and width of 8 mm. Its complete dimensions are 110x150x8 mm.

What material is the seal made from?

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

Is BABSL a double-lip oil seal?

Yes. The BABSL design incorporates a primary sealing lip and an additional protective lip.

Does the BABSL design have a garter spring?

Yes. The primary sealing lip is supported by a garter spring that maintains contact with the rotating shaft.

What is the purpose of the additional lip?

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

Does BABSL have a rubber-covered outside diameter?

Yes. The elastomer-covered outside diameter provides static sealing between the oil seal and the housing bore.

Is NBR resistant to oil?

NBR provides good resistance to many mineral oils and greases. Compatibility should always be verified for the specific medium, operating temperature and working conditions.

Can any 110x150x8 oil seal replace a BABSL seal?

No. In addition to dimensions, the elastomer material, lip configuration, outside diameter design and operating requirements must be verified.

Rotary Shaft Seal 110x150x8 NBR BABSL - key information

Rotary Shaft Seal 110x150x8 NBR BABSL is a double-lip oil seal with dimensions 110x150x8 mm, manufactured from NBR. The BABSL design combines a spring-loaded primary sealing lip, an additional protective lip and an elastomer-covered outside diameter. Correct selection requires verification of the dimensions, material, seal design and actual operating conditions.

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