What are the dimensions of this SKF 6304 bearing?

This ball bearing has a 20 mm inner bore, a 52 mm outer diameter, and a width of 15 mm.

What radial internal clearance does this bearing have?

It features standard normal radial clearance (CN), suitable for general operating conditions.

Is this ball bearing sealed?

No, this is an open bearing without seals, designed for use in clean or enclosed lubricated environments.

What loads can the 6304 bearing accommodate?

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

What type of bore does this bearing have?

The SKF 6304 has a cylindrical bore for direct mounting onto a standard 20 mm shaft.

SKF 6304 single-row groove ball bearing cylindrical 20x52x15 mm

Supplier number: SKF 6304 | EAN 7316571124742

Recommended Retail Price €17.52

8.60 tax incl.

€7.11 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 14/10/2026
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 rotation with Skf

Practical benefits

Low friction at speed: You achieve quiet and efficient operation at high speeds thanks to precision-engineered deep raceways.
High load handling capacity: The robust steel construction supports both radial and axial forces in either direction with dependable stability.
Unrestricted lubricant flow: The open design allows gear oil or grease to circulate freely, keeping your drive running smoothly.

In a nutshell

The right choise for

With the Skf 6304 single-row deep groove ball bearing, you ensure smooth, quiet shaft rotation and dependable mechanical performance across your machinery. Built from steel with a 20 mm cylindrical bore, a 52 mm outer diameter, and a 15 mm width, it easily accommodates both radial and axial loads in either direction. Its standard normal radial internal clearance (CN) makes it ideal for everyday maintenance and equipment assembly. Thanks to its open, unsealed design, lubricant circulates freely within enclosed gearboxes and oil baths, minimizing friction and keeping your drives running cool and efficiently at high rotational speeds.

Product information FAQ

€8.60

In stock - tax incl.

Key features according to our expert

Inner diameter: 20 mm
Width: 15 mm
Number of rows: 1
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Radial clearance: CN (Normal)
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 52 mm

Product description

Single row deep groove ball bearings 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.

Avantages

Simple, versatile and robust design
Low friction
High-speed capability
Accommodate radial and axial loads in both directions
Require little maintenance

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 20 mm
Width: 15 mm
Number of rows: 1
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Radial clearance: CN (Normal)
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 52 mm
Matched arrangement: No
Tolerance class: Class P6 (P6)
Radial internal clearance: CN
Basic static load rating: 7.8
Material, bearing: Bearing steel
Relubrication feature: Without
Reference speed: 30000
Skf performance class: SKF Explorer
Lubricant: None
Cage: Sheet metal
Locating feature, bearing outer ring: None
Filling slots: Without
Coating: Without
Sealing: Without
Limiting speed: 19000
Bore diameter: 20
Basic dynamic load rating: 16.8
Outer diameter: 52

Brand SKF
01010304
EAN 7316571124742
Supplier number SKF 6304

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF 6304 bearing?: This ball bearing has a 20 mm inner bore, a 52 mm outer diameter, and a width of 15 mm.
What radial internal clearance does this bearing have?: It features standard normal radial clearance (CN), suitable for general operating conditions.
Is this ball bearing sealed?: No, this is an open bearing without seals, designed for use in clean or enclosed lubricated environments.
What loads can the 6304 bearing accommodate?: This single-row deep groove ball bearing accommodates both radial and axial loads in both directions.
What type of bore does this bearing have?: The SKF 6304 has a cylindrical bore for direct mounting onto a standard 20 mm shaft.