What are the dimensions of this SKF needle roller bearing?

This bearing has an inside diameter of 25 mm, an outside diameter of 37 mm, and a width of 17 mm.

Does this bearing include an inner ring?

No, this model is designed without an inner ring and runs directly on a hardened and ground shaft.

How is this needle roller bearing sealed?

It features integral contact rubber seals on both sides (2RS) to retain grease and keep out contaminants.

What material is used for the cage?

The cage of this needle roller bearing is made of sheet steel.

Does the outer ring support relubrication?

Yes, the solid outer ring includes a lubrication groove and holes for easy relubrication.

SKF RNA 4904.2RS needle roller bearing without inner ring 25x37x17 mm

Supplier number: SKF RNA 4904.2RS | EAN 7316577015044

Recommended Retail Price €95.86

46.95 tax incl.

€38.80 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 7 products in stock.

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Compact strength for tight assemblies

Practical benefits

Space saving ringless design: You mount this Skf needle roller bearing directly on the shaft, achieving a minimal cross-sectional height with high stiffness.
Effective dual contact seals: Integrated rubber seals protect internal components from contaminants while retaining grease to extend overall service life.
High radial load capacity: Machined solid outer rings and a sturdy sheet steel cage easily accommodate heavy radial forces in demanding applications.

In a nutshell

The right choise for

With the Skf rna 4904.2RS single row needle roller bearing, you achieve a compact and exceptionally stiff arrangement in drives with limited radial space. Designed without an inner ring, it mounts directly onto a hardened and ground 25 mm shaft to minimize cross-sectional height. The machined outer ring with flanges and the robust sheet steel cage reliably handle heavy radial loads. Thanks to integral contact rubber seals on both sides, grease is securely retained while dust and moisture are kept out. This prevents premature wear and ensures dependable performance across industrial machinery and gearboxes.

Product information FAQ

€46.95

In stock - tax incl.

Key features according to our expert

Inner diameter: 25 mm
Width: 17 mm
Sealing (bearing): Sealed on both sides
Material (bearing seal): Rubber
Number of rows: 1
Material (cage): Sheet steel
Outer diameter: 37 mm

Product description

Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly. They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.

High radial load carrying capacity
High stiffness
Low cross-sectional height
Accommodate axial displacement in both directions
Integral sealing prolongs bearing service life

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 25 mm
Width: 17 mm
Sealing (bearing): Sealed on both sides
Material (bearing seal): Rubber
Number of rows: 1
Material (cage): Sheet steel
Outer diameter: 37 mm
Bore diameter of needle roller complement: 25
Tolerance class: Normal
Aligning feature: Without
Basic static load rating: 22.4
Lubricant: Grease
Relubrication feature: With
Reference speed: 15000
Skf performance class: SKF Explorer
Sealing: Seal on both sides
Sealing type: Contact
Cage: Sheet steel
Bearing part: Bearing without inner ring
Number of flanges, outer ring: 2
Outer ring type: Machined (solid)
Limiting speed: 7500
Basic dynamic load rating: 22
Coating: Without
Outer diameter: 37
Material, bearing: Bearing steel

Brand SKF
01290090
EAN 7316577015044
Supplier number SKF RNA 4904.2RS

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF needle roller bearing?: This bearing has an inside diameter of 25 mm, an outside diameter of 37 mm, and a width of 17 mm.
Does this bearing include an inner ring?: No, this model is designed without an inner ring and runs directly on a hardened and ground shaft.
How is this needle roller bearing sealed?: It features integral contact rubber seals on both sides (2RS) to retain grease and keep out contaminants.
What material is used for the cage?: The cage of this needle roller bearing is made of sheet steel.
Does the outer ring support relubrication?: Yes, the solid outer ring includes a lubrication groove and holes for easy relubrication.