What are the dimensions of this SKF 6304-2Z ball bearing?

The inside diameter is 20 mm, the outside diameter is 52 mm, and the width is 15 mm.

What does the 2Z designation mean for this bearing?

It indicates that the bearing has metal shields on both sides to protect against dust and debris.

What radial internal clearance does this bearing have?

This deep groove ball bearing features normal radial internal clearance (designated as CN).

Is this bearing designed for high-temperature applications?

No, this is a standard model and is not rated for high-temperature environments.

What types of loads can this bearing support?

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

SKF 6304-2Z single-row groove ball bearing cylindrical 20x52x15 mm

Supplier number: SKF 6304-2Z | EAN 7316570205350

Recommended Retail Price €20.18

9.80 tax incl.

€8.10 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 17/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Reliable rotation with Skf bearing

Practical benefits

Double metal shield protection: The integrated metal shields keep lubricant sealed inside and keep contaminants out, giving you extended service life with less maintenance.
Versatile dual load support: Deep raceway grooves allow this single-row design to smoothly accommodate both radial and axial forces in either direction.
Smooth low-friction high-speed performance: Low friction and reduced vibration enable you to run machinery at high rotational speeds with quiet and consistent operation.

In a nutshell

The right choise for

With the Skf 6304-2Z deep groove ball bearing, you ensure smooth and dependable rotation for electric motors, fans, and drive shafts. The single-row design with deep raceway grooves smoothly accommodates both radial and axial loads in either direction. Thanks to the metal shields on both sides, factory lubricant stays sealed inside while dust and coarse dirt are effectively locked out, without creating extra frictional resistance or heat buildup. Measuring 20 mm in bore diameter, 52 mm in outer diameter, and 15 mm in width, this steel bearing delivers quiet, low-vibration operation at high speeds with minimal maintenance.

Product information FAQ

€9.80

In stock - tax incl.

Key features according to our expert

Inner diameter: 20 mm
Width: 15 mm
Number of rows: 1
Sealing (bearing): Sealed on both sides
Material (bearing seal): Metal
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 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: 20 mm
Width: 15 mm
Number of rows: 1
Sealing (bearing): Sealed on both sides
Material (bearing seal): Metal
Radial clearance: CN (Normal)
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 52 mm
Relubrication feature: Without
Radial internal clearance: CN
Basic static load rating: 7.8
Matched arrangement: No
Material, bearing: Bearing steel
Reference speed: 30000
Skf performance class: SKF Explorer
Lubricant: Grease
Sealing type: Non-contact
Cage: Sheet metal
Filling slots: Without
Tolerance class: Class P6 (P6)
Basic dynamic load rating: 16.8
Locating feature, bearing outer ring: None
Sealing: Shield on both sides
Limiting speed: 15000
Bore diameter: 20
Coating: Without
Outer diameter: 52

Brand SKF
01010308
EAN 7316570205350
Supplier number SKF 6304-2Z

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF 6304-2Z ball bearing?: The inside diameter is 20 mm, the outside diameter is 52 mm, and the width is 15 mm.
What does the 2Z designation mean for this bearing?: It indicates that the bearing has metal shields on both sides to protect against dust and debris.
What radial internal clearance does this bearing have?: This deep groove ball bearing features normal radial internal clearance (designated as CN).
Is this bearing designed for high-temperature applications?: No, this is a standard model and is not rated for high-temperature environments.
What types of loads can this bearing support?: This single row deep groove ball bearing accommodates radial and axial loads in both directions.