What are the dimensions of this radial shaft seal?

The seal has an inside diameter of 28 mm, an outside diameter of 37 mm, and a width of 4 mm.

What applications is the SKF G 28X37X4 designed for?

This low cross-sectional height seal is designed specifically for needle roller bearing arrangements.

What material is the sealing lip made of?

The sealing lip is made of nitrile rubber (NBR) and reinforced with sheet steel.

What is the operating temperature range for this seal?

The seal operates reliably in a temperature range from -30 °C to 110 °C.

SKF G 28X37X4 radial shaft seal 28 mm x 37 mm x 4 mm

Supplier number: SKF G 28X37X4 | EAN 7316570642551

Recommended Retail Price €19.14

9.40 tax incl.

€7.77 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Reliable sealing with Skf G 28X37X4

Practical benefits

Compact low cross section: You can easily fit this radial shaft seal into space-restricted needle roller bearing arrangements.
Effective retention of lubricant: The contact sealing lip keeps lubricants securely inside while keeping external contaminants out.
Reinforced and stable fit: With steel reinforcement and a rubber outer diameter, you achieve a tight seal in the housing bore.

In a nutshell

The right choise for

With the Skf g 28X37X4 radial shaft seal, you protect needle roller bearing arrangements against dust, dirt, and moisture while preventing oil and grease leakage. Designed with an ultra-compact axial width of just 4 mm, this seal fits easily into tight machine spaces and compact drives. The nitrile rubber (NBR) sealing lip is reinforced with sheet steel, ensuring a stable and secure fit within the housing bore. Operating reliably across a temperature range of -30 °C to 110 °C, it extends the service life of your rotating components during machine maintenance and overhaul.

Product information FAQ

€9.40

In stock - tax incl.

Key features according to our expert

Inner diameter: 28 mm
Outer diameter: 37 mm
Width: 4 mm

Product description:

Radial shaft seals are trailing seals used particularly for sealing oil-lubricated bearings.
These ready-to-use elastomer seals usually have a metal reinforcement or housing
The sealing lip is usually a nitrile rubber and is normally pressed against a contact surface on the shaft by means of a spring
Depending on the seal material and the medium to be kept in or out, radial shaft seals can be used at temperatures between 60 and +190 °C
The contact area between the seal lip and the contact surface is vital for the effectiveness of the seal
The surface hardness of the contact surface should normally be at least 55 HRC, and the depth of hardening should be at least 0.3 mm
Surface roughness according to ISO 4288:1996 should be within the guidelines of Ra = 0.2 to 0.8 mm
In applications with low speeds, good lubrication and minimal contamination, a lower hardness can be used
To prevent pumping of spiral grinding grooves, insert grinding is recommended
If the radial shaft seal is to keep the lubricant inside the bearing housing, the seal should be mounted with the lip inwards
If the main task is to keep out contaminants, the lip should point outwards

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 28 mm
Outer diameter: 37 mm
Width: 4 mm
Shaft diameter: 28 mm
Unit system: Metric
Seal width: 4 mm
Sealing lip material: Acrylonitrile-butadiene rubber (NBR)
Auxiliary lip: No
Housing bore diameter: 37 mm

Brand SKF
01310056
EAN 7316570642551
Supplier number SKF G 28X37X4

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this radial shaft seal?: The seal has an inside diameter of 28 mm, an outside diameter of 37 mm, and a width of 4 mm.
What applications is the SKF G 28X37X4 designed for?: This low cross-sectional height seal is designed specifically for needle roller bearing arrangements.
What material is the sealing lip made of?: The sealing lip is made of nitrile rubber (NBR) and reinforced with sheet steel.
What is the operating temperature range for this seal?: The seal operates reliably in a temperature range from -30 °C to 110 °C.