What types of loads can this SKF bearing accommodate?

This double-row bearing accommodates combined radial and axial loads in both directions.

What does the C3 designation signify?

The C3 designation indicates greater-than-normal internal clearance, suitable for thermal expansion.

What material is the bearing cage made of?

The cage (TN9) is made of glass-fibre reinforced polyamide.

Does this bearing come with built-in seals?

No, this is an open bearing configuration without integrated seals.

What are the primary dimensions of this model?

It features a 30 mm bore, a 72 mm outside diameter, and a width of 30.2 mm.

SKF 3306 ATN9/C3 double-row angular contact ball bearing 30 x 72 x 30.2 mm with 30° contact angle

Supplier number: SKF 3306 ATN9/C3 | EAN 7316577052445

Recommended Retail Price €206.85

102.40 tax incl.

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

On stock - immediately available | we have 8 products in stock.

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
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

Reliable load handling by Skf

Practical benefits

Bidirectional combined load capacity: You accommodate heavy radial loads and axial forces in both directions simultaneously thanks to the double-row layout with a 30° contact angle.
Compact and stiff arrangement: It requires less axial space than two single-row bearings while providing you with a rigid and highly stable bearing position.
Smooth high speed operation: The lightweight polyamide cage combined with C3 internal clearance allows you to run smoothly at high rotational speeds.

In a nutshell

The right choise for

With the Skf 3306 ATN9/C3 double-row angular contact ball bearing, you gain rigid guidance and dependable load handling in a compact envelope. Its two-row design with a 30° contact angle accommodates heavy radial forces and bidirectional axial loads simultaneously. This replaces paired single-row bearings while saving valuable axial space. The lightweight polyamide cage and increased C3 internal clearance ensure smooth, low-friction operation at high speeds and prevent seizure under thermal expansion. Featuring dimensions of 30 x 72 x 30.2 mm, this open bearing delivers reliable performance in pumps, gearboxes, and heavy-duty drivetrains.

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: C3
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: C3
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: C3
Contact angle: 30
Limiting speed: 9000
Basic dynamic load rating: 42.5
Coating: Without
Outer diameter: 72
Universal matching bearing: No

Brand SKF
01050383
EAN 7316577052445
Supplier number SKF 3306 ATN9/C3

Frequently asked questions about this product

Answered by specialists

What types of loads can this SKF bearing accommodate?: This double-row bearing accommodates combined radial and axial loads in both directions.
What does the C3 designation signify?: The C3 designation indicates greater-than-normal internal clearance, suitable for thermal expansion.
What material is the bearing cage made of?: The cage (TN9) is made of glass-fibre reinforced polyamide.
Does this bearing come with built-in seals?: No, this is an open bearing configuration without integrated seals.
What are the primary dimensions of this model?: It features a 30 mm bore, a 72 mm outside diameter, and a width of 30.2 mm.