What are the dimensions of this ball bearing?

The bearing has a 20 mm bore diameter, a 47 mm outside diameter, and an 18 mm width.

What does the suffix TN9 stand for?

It indicates a cage made from glass-fibre reinforced polyamide (polymer).

Is this SKF ball bearing sealed?

No, this is an open bearing without integrated seals or shields.

What internal clearance does the SKF 4204 ATN9 have?

This bearing has normal radial internal clearance (CN).

Why choose a double row deep groove ball bearing?

A double row design provides significantly higher load carrying capacity for radial and axial loads.

SKF 4204 ATN9 double-row groove ball bearing cylindrical 20x47x18 mm

Supplier number: SKF 4204 ATN9 | EAN 7316577004413

Recommended Retail Price €76.71

37.80 tax incl.

€31.24 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 13/10/2026
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

Superior capacity with Skf 4204 ATN9

Practical benefits

Enhanced radial load support: The double-row construction allows you to handle significantly higher load capacities than single-row alternatives.
Smooth low-friction rotation: The lightweight polymer cage minimizes internal friction so you achieve quiet operation at high speeds.
Bidirectional combined load handling: Its open deep-groove layout effortlessly accommodates both radial and axial forces in either direction.

In a nutshell

The right choise for

With the Skf 4204 ATN9 double row deep groove ball bearing, you gain exceptional load capacity and reliability in compact shaft arrangements. Featuring two rows of steel balls, this bearing handles significantly higher radial and axial forces than single-row designs, making it ideal for gearboxes, drive technology, pumps, and mechanical engineering. The lightweight glass-fibre reinforced polyamide cage minimizes friction to ensure smooth, quiet operation at high speeds. This open bearing with a 20 mm cylindrical bore, 47 mm outside diameter, 18 mm width, and standard cn radial clearance delivers dependable performance and long-lasting control on your rotating equipment.

Product information FAQ

€37.80

In stock - tax incl.

Key features according to our expert

Inner diameter: 20 mm
Width: 18 mm
Number of rows: 2
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Radial clearance: CN (Normal)
Material (bearing): Steel
Material (cage): Plastic
Bore type: Cylindrical
High temperature: No
Outer diameter: 47 mm

Product description

Double row deep groove ball bearings correspond, in their design and operation, to a pair of single row deep groove ball bearings. They are robust in operation, requiring little maintenance, can operate at high speeds and accommodate radial and axial loads in both directions. They are slightly wider than single row bearings of the same bore and outside diameter but have a considerably higher load carrying capacity.

Versatile and robust design
High-speed capability
Accommodate high axial and radial loads in both directions
Require little maintenance

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 20 mm
Width: 18 mm
Number of rows: 2
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Radial clearance: CN (Normal)
Material (bearing): Steel
Material (cage): Plastic
Bore type: Cylindrical
High temperature: No
Outer diameter: 47 mm
Matched arrangement: No
Tolerance class: Normal
Radial internal clearance: CN
Basic static load rating: 12.5
Material, bearing: Bearing steel
Relubrication feature: Without
Reference speed: 24000
Lubricant: None
Cage: Non-metallic
Locating feature, bearing outer ring: None
Filling slots: Without
Coating: Without
Sealing: Without
Limiting speed: 13000
Bore diameter: 20
Basic dynamic load rating: 17.8
Outer diameter: 47

Brand SKF
01020005
EAN 7316577004413
Supplier number SKF 4204 ATN9

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this ball bearing?: The bearing has a 20 mm bore diameter, a 47 mm outside diameter, and an 18 mm width.
What does the suffix TN9 stand for?: It indicates a cage made from glass-fibre reinforced polyamide (polymer).
Is this SKF ball bearing sealed?: No, this is an open bearing without integrated seals or shields.
What internal clearance does the SKF 4204 ATN9 have?: This bearing has normal radial internal clearance (CN).
Why choose a double row deep groove ball bearing?: A double row design provides significantly higher load carrying capacity for radial and axial loads.