What are the dimensions of this bearing?

The bore diameter is 30 mm, the outside diameter is 72 mm, and the width is 30.2 mm.

What types of loads can this angular contact ball bearing handle?

It supports radial loads as well as axial loads in both directions simultaneously due to its double-row layout and 30° contact angle.

Does this SKF ball bearing have seals?

No, this is an open bearing without seals.

What material is the bearing cage made from?

The TN9 suffix indicates a cage made from glass-fibre reinforced polyamide (plastic).

What is the internal clearance of this bearing?

This bearing has standard normal axial internal clearance (CN).

SKF 3306 ATN9 double-row angular contact ball bearing 30 x 72 x 30.2 mm with 30° contact angle

Supplier number: SKF 3306 ATN9 | EAN 7316577069412

Recommended Retail Price €206.85

102.40 tax incl.

€84.63 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 14/10/2026
Shipping costs €6.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Efficient load capacity with Skf

Practical benefits

Bidirectional axial support: You easily accommodate combined radial and bidirectional axial loads thanks to the double-row layout with a 30° contact angle.
Compact and rigid design: You require less axial space than two single bearings while ensuring a stiff assembly that resists tilting moments.
High speed capability: Thanks to the lightweight polyamide cage, you benefit from reduced friction and smooth running during high rotational speeds.

In a nutshell

The right choise for

With the Skf 3306 ATN9 double-row angular contact ball bearing, you ensure a rigid and dependable arrangement in compact installations. Featuring a 30 mm bore, 72 mm outside diameter, and 30.2 mm width, this open bearing uses a 30° contact angle to accommodate heavy radial loads and bidirectional axial forces simultaneously. Its glass-fibre reinforced polyamide cage reduces friction and noise during high rotational speeds. This makes it an ideal solution for industrial gearboxes, pumps, compressors, and drive shafts operating in grease- or oil-lubricated enclosed housings.

Product information FAQ

€102.40

In stock - tax incl.

Key features according to our expert

Inner diameter: 30 mm
Width: 30,2 mm
Number of rows: 2
Axial clearance: CN (Normal)
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Material (cage): Plastic
Outer diameter: 72 mm

Product description

Double row angular contact ball bearings correspond, in their design and operation, to a pair of single row angular contact ball bearings in a back-to-back arrangement, while requiring less axial space. They can operate at high speeds and are more suitable than deep groove ball bearings for supporting large axial forces in both directions.

High-speed capability
Accommodate relatively high radial loads, high axial loads in both directions and tilting moments
Suitable where a stiff bearing arrangement is required
Require less axial space than equivalent pair of single row angular contact ball bearings

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 30 mm
Width: 30,2 mm
Number of rows: 2
Axial clearance: CN (Normal)
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Material (cage): Plastic
Outer diameter: 72 mm
Matched arrangement: No
Locating feature, bearing outer ring: None
Ring type: One-piece inner and outer rings
Contact type: Normal contact (two-point contact)
Basic static load rating: 30
Lubricant: None
Relubrication feature: Without
Reference speed: 10000
Skf performance class: SKF Explorer
Arrangement of contact angle (double-row bearing): Back-to-back (O)
Cage: Non-metallic
Material, bearing: Bearing steel
Sealing: Without
Bore diameter: 30
Axial internal clearance: CN
Contact angle: 30
Limiting speed: 9000
Basic dynamic load rating: 42.5
Coating: Without
Outer diameter: 72
Universal matching bearing: No

Brand SKF
01050027
EAN 7316577069412
Supplier number SKF 3306 ATN9

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this bearing?: The bore diameter is 30 mm, the outside diameter is 72 mm, and the width is 30.2 mm.
What types of loads can this angular contact ball bearing handle?: It supports radial loads as well as axial loads in both directions simultaneously due to its double-row layout and 30° contact angle.
Does this SKF ball bearing have seals?: No, this is an open bearing without seals.
What material is the bearing cage made from?: The TN9 suffix indicates a cage made from glass-fibre reinforced polyamide (plastic).
What is the internal clearance of this bearing?: This bearing has standard normal axial internal clearance (CN).