What are the dimensions of this SKF ball bearing?

This ball bearing has an inside diameter of 55 mm, an outside diameter of 120 mm, and a width of 29 mm.

What does the C3 designation indicate?

C3 denotes a radial internal clearance greater than normal, accommodating thermal expansion during high-speed operation.

What protection does the 2RS1 suffix provide?

The 2RS1 suffix indicates contact rubber seals on both sides to keep out dust, dirt, and moisture.

Does this SKF bearing require greasing before installation?

No, this sealed bearing is pre-filled with high-grade grease and lubricated for life.

What loads can this deep groove ball bearing support?

This single-row deep groove ball bearing accommodates both radial and axial loads in both directions.

SKF 6311-2RS1/C3 single-row groove ball bearing cylindrical 55x120x29 mm

Supplier number: SKF 6311-2RS1/C3 | EAN 7316576681998

Recommended Retail Price €149.28

73.80 tax incl.

€60.99 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 22/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

Smooth machinery operation with Skf bearings

Practical benefits

Effective dual rubber sealing: The contact rubber seals on both sides retain lubricant while keeping dirt, dust, and moisture completely out.
Extra internal thermal clearance: The C3 clearance accommodates thermal expansion during high-speed operation, preventing friction and premature component wear.
Reliable multidirectional load support: You easily support combined radial and axial loads in both directions for quiet, stable, and long-lasting mechanical performance.

In a nutshell

The right choise for

Keep your industrial machinery, electric motors, and pumps running smoothly with the Skf 6311-2RS1/C3 deep groove ball bearing. Designed with a 55 mm bore, 120 mm outer diameter, and 29 mm width, this single-row steel bearing reliably supports combined radial and axial loads in both directions. The dual contact rubber seals keep dirt, dust, and moisture out while retaining lubricant inside the bearing. With its C3 radial internal clearance, it easily accommodates shaft thermal expansion during high-speed operations. Pre-filled with grease and lubricated for life, this bearing delivers quiet, maintenance-free performance to maximize your equipment uptime.

Product information FAQ

€73.80

In stock - tax incl.

Key features according to our expert

Inner diameter: 55 mm
Width: 29 mm
Number of rows: 1
Sealing (bearing): Sealed on both sides
Material (bearing seal): Rubber
Radial clearance: C3
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 120 mm

Product description

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.

Integral sealing prolongs bearing service life
Simple, versatile and robust design
Low friction and high-speed capability
Accommodate radial and axial loads in both directions
Require little maintenance

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 55 mm
Width: 29 mm
Number of rows: 1
Sealing (bearing): Sealed on both sides
Material (bearing seal): Rubber
Radial clearance: C3
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 120 mm
Relubrication feature: Without
Radial internal clearance: C3
Basic static load rating: 45
Matched arrangement: No
Material, bearing: Bearing steel
Reference speed: 12000
Skf performance class: SKF Explorer
Lubricant: Grease
Sealing type: Contact
Cage: Sheet metal
Filling slots: Without
Tolerance class: Normal
Basic dynamic load rating: 74.1
Locating feature, bearing outer ring: None
Sealing: Seal on both sides
Limiting speed: 3800
Bore diameter: 55
Coating: Without
Outer diameter: 120

Brand SKF
01010809
EAN 7316576681998
Supplier number SKF 6311-2RS1/C3

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF ball bearing?: This ball bearing has an inside diameter of 55 mm, an outside diameter of 120 mm, and a width of 29 mm.
What does the C3 designation indicate?: C3 denotes a radial internal clearance greater than normal, accommodating thermal expansion during high-speed operation.
What protection does the 2RS1 suffix provide?: The 2RS1 suffix indicates contact rubber seals on both sides to keep out dust, dirt, and moisture.
Does this SKF bearing require greasing before installation?: No, this sealed bearing is pre-filled with high-grade grease and lubricated for life.
What loads can this deep groove ball bearing support?: This single-row deep groove ball bearing accommodates both radial and axial loads in both directions.