What are the exact dimensions of this needle roller bearing?

This bearing has a 50 mm bore diameter, a 72 mm outside diameter, and a total width of 23 mm.

Does this bearing include an inner ring?

Yes, this model comes complete with a machined inner ring, eliminating the need for a hardened shaft raceway.

What does the 2RS designation mean?

The 2RS code indicates contact rubber seals on both sides to keep contaminants out and retain grease.

Can this SKF bearing be relubricated?

Yes, it features lubrication holes in the rings to facilitate relubrication.

What types of load is this bearing designed for?

It is designed to handle high radial loads while maintaining a compact cross-sectional height.

SKF NA 4910.2RS needle roller bearing with inner ring 50x72x23 mm

Supplier number: SKF NA 4910.2RS | EAN 7316577012197

Recommended Retail Price €188.08

92.80 tax incl.

€76.69 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

High radial load capacity in compact spaces

Practical benefits

Reliable Skf NA 4910.2RS performance: You achieve exceptional load carrying capacity in tight spaces thanks to the optimized needle roller configuration.
Built-in double contact seals: You prevent dirt ingress and retain internal grease effectively, ensuring a significantly longer operating life.
Straightforward inner ring installation: You install easily on standard unhardened shafts without requiring specialized shaft hardening or extra machining.

In a nutshell

The right choise for

The Skf na 4910.2RS needle roller bearing delivers impressive radial load capacity in a compact installation envelope. Measuring 50X72X23 mm, this single row bearing with machined rings and flanges comes complete with an inner ring, allowing straightforward mounting directly onto unhardened shafts without specialized machining. The integrated double contact rubber seals (2RS) effectively retain internal lubricant while keeping out dust, dirt, and moisture. It is the dependable choice for high-demand industrial gearboxes, drive systems, and pumps.

Product information FAQ

€92.80

In stock - tax incl.

Key features according to our expert

Inner diameter: 50 mm
Width: 23 mm
Sealing (bearing): Sealed on both sides
Material (bearing seal): Rubber
Number of rows: 1
Material (cage): Brass (sheet)
Outer diameter: 72 mm

Product description

Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. 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. The inner ring contains an additional lubrication hole.

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

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 50 mm
Width: 23 mm
Sealing (bearing): Sealed on both sides
Material (bearing seal): Rubber
Number of rows: 1
Material (cage): Brass (sheet)
Outer diameter: 72 mm
Basic static load rating: 69.5
Tolerance class: Normal
Radial internal clearance: CN
Aligning feature: Without
Lubricant: Grease
Relubrication feature: With
Reference speed: 7000
Skf performance class: SKF Explorer
Sealing: Seal on both sides
Sealing type: Contact
Cage: Sheet metal
Bearing part: Complete bearing
Bore diameter: 50
Number of flanges, outer ring: 2
Outer ring type: Machined (solid)
Limiting speed: 3400
Basic dynamic load rating: 46.5
Coating: Without
Outer diameter: 72
Material, bearing: Bearing steel

Brand SKF
01290234
EAN 7316577012197
Supplier number SKF NA 4910.2RS

Frequently asked questions about this product

Answered by specialists

What are the exact dimensions of this needle roller bearing?: This bearing has a 50 mm bore diameter, a 72 mm outside diameter, and a total width of 23 mm.
Does this bearing include an inner ring?: Yes, this model comes complete with a machined inner ring, eliminating the need for a hardened shaft raceway.
What does the 2RS designation mean?: The 2RS code indicates contact rubber seals on both sides to keep contaminants out and retain grease.
Can this SKF bearing be relubricated?: Yes, it features lubrication holes in the rings to facilitate relubrication.
What types of load is this bearing designed for?: It is designed to handle high radial loads while maintaining a compact cross-sectional height.