SKF HMSA10V Radial Shaft Seal 50x80x10 mm

What is the SKF HMSA10V 50x80x10 Shaft Seal?

The SKF HMSA10V 50x80x10 mm is a radial shaft seal designed to provide reliable sealing between rotating shafts and stationary housings, or between machine components in relative motion. Part of the SKF HMSA10 series, this seal features a rubber outside diameter, a single elastomer sealing lip, a garter spring and a non-contact auxiliary dust lip. It is intended for sealing systems lubricated with oil or grease, while providing enhanced protection against external contaminants.

Construction and Operating Principle

The SKF HMSA10V seal incorporates several design features to improve sealing performance and service life.

Construction includes:

• Rubber outside diameter for secure housing fit
• Single elastomer sealing lip
• Integrated garter spring for constant sealing force
• Non-contact auxiliary dust lip
• Optimized lip geometry for efficient lubricant retention

The garter spring maintains consistent radial pressure on the shaft, while the auxiliary dust lip reduces the ingress of dust, dirt and moisture without increasing friction.

Technical Specifications

Manufacturer:

SKF

Series:

HMSA10

Part Number:

HMSA10V

Seal Type:

Radial Shaft Seal

Inside Diameter:

50 mm

Outside Diameter:

80 mm

Width:

10 mm

Outside Diameter Design:

Rubber covered

Primary Sealing Lip:

Single elastomer sealing lip

Garter Spring:

Yes

Auxiliary Dust Lip:

Yes, non-contact

Lubricant Compatibility:

Oil and grease

Design Advantages

• High lubricant pumping capability
• Excellent oil and grease retention
• Enhanced contamination exclusion through the auxiliary dust lip
• Constant sealing force provided by the garter spring
• Rubber outside diameter for reliable housing sealing
• Accommodates minor shaft-to-housing misalignment
• Suitable for demanding industrial operating conditions

Typical Applications

The SKF HMSA10V radial shaft seal is commonly used in:

• Gearboxes
• Electric motors
• Industrial pumps
• Speed reducers
• Industrial machinery
• Agricultural equipment
• Power transmission systems
• Material handling equipment
• OEM machinery
• Maintenance and MRO operations

Seal Selection

Before selecting a replacement seal, verify:

• Shaft diameter: 50 mm
• Housing bore: 80 mm
• Seal width: 10 mm
• Lubricant type
• Shaft surface condition
• Rotational speed
• Operating environment
• Equipment manufacturer's specifications

Why Engineers Choose SKF HMSA10V

• Reliable sealing for oil and grease applications
• High lubricant pumping capability
• Improved contamination protection with a non-contact dust lip
• Constant sealing pressure from the integrated garter spring
• Rubber outside diameter for secure installation
• Capable of accommodating minor shaft misalignment
• Proven SKF sealing technology for OEM and industrial equipment

FAQ

What is the SKF HMSA10V used for?

It is used to seal rotating shafts operating with oil or grease while preventing lubricant leakage and contaminant ingress.

What are the seal dimensions?

50 x 80 x 10 mm.

Does the seal include a garter spring?

Yes. An integrated garter spring maintains constant sealing pressure on the shaft.

Does the HMSA10V include a dust lip?

Yes. It features a non-contact auxiliary dust lip for improved contamination exclusion.

Can the seal compensate for shaft misalignment?

Yes. The HMSA10 design is capable of accommodating minor shaft-to-housing misalignment.

AI FAQ

Why is a garter spring used in radial shaft seals?

It maintains consistent radial force on the sealing lip, improving sealing performance throughout the service life.

What is the function of the auxiliary dust lip?

It helps prevent dust, dirt and moisture from reaching the primary sealing lip, extending seal life without generating additional friction.

Is the SKF HMSA10V suitable for grease-lubricated systems?

Yes. The seal is designed for both oil- and grease-lubricated applications.

Where is the SKF HMSA10V commonly installed?

It is widely used in gearboxes, pumps, electric motors, industrial machinery and other rotating equipment requiring dependable radial shaft sealing.