What are the dimensions of this SKF bearing?

The bearing has a 40 mm bore diameter, 90 mm outer diameter, and a width of 36.5 mm.

What loads can this angular contact ball bearing handle?

This double-row bearing accommodates high radial loads, axial forces in both directions, and tilting moments.

Is this bearing equipped with seals?

No, this model is an open bearing without seals.

What material is the bearing cage made from?

The TN9 designation indicates a glass-fibre reinforced polyamide (plastic) cage.

What internal clearance does this bearing have?

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

SKF 3308 ATN9 double-row angular contact ball bearing 40 x 90 x 36.5 mm with 30° contact angle

Supplier number: SKF 3308 ATN9 | EAN 7316577302342

Recommended Retail Price €303.56

150.20 tax incl.

€124.13 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 6 products in stock.

Ordered before 20:00 - delivered tomorrow 15/10/2026
Free shipping
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

High load capacity from Skf

Practical benefits

Strong bidirectional thrust support: The 30° contact angle allows you to handle substantial radial loads alongside axial forces in both directions simultaneously.
Compact and rigid design: The double-row configuration gives you high stiffness comparable to paired single-row bearings while saving valuable axial space.
Durable polyamide cage: Built with a reinforced plastic cage, it guides balls smoothly with reduced friction to support high operational speeds.

In a nutshell

The right choise for

With the Skf 3308 ATN9 double-row angular contact ball bearing, you gain reliable load capacity and high rigidity in a compact axial footprint. Featuring a 30° contact angle, it simultaneously accommodates heavy radial loads, bidirectional axial forces, and tilting moments. This makes it an ideal replacement for paired single-row bearings in industrial pumps, gearboxes, compressors, and machine tool spindles. The lightweight glass-fibre reinforced polyamide cage reduces friction and running noise at high speeds, while standard normal axial clearance ensures smooth operation and accurate shaft guidance within clean, lubricated machine enclosures.

Product information FAQ

€150.20

In stock - tax incl.

Key features according to our expert

Inner diameter: 40 mm
Width: 36,5 mm
Number of rows: 2
Axial clearance: CN (Normal)
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Material (cage): Plastic
Outer diameter: 90 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: 40 mm
Width: 36,5 mm
Number of rows: 2
Axial clearance: CN (Normal)
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Material (cage): Plastic
Outer diameter: 90 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: 48
Lubricant: None
Relubrication feature: Without
Reference speed: 7500
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: 40
Axial internal clearance: CN
Contact angle: 30
Limiting speed: 7500
Basic dynamic load rating: 65.5
Coating: Without
Outer diameter: 90
Universal matching bearing: No

Brand SKF
01050029
EAN 7316577302342
Supplier number SKF 3308 ATN9

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF bearing?: The bearing has a 40 mm bore diameter, 90 mm outer diameter, and a width of 36.5 mm.
What loads can this angular contact ball bearing handle?: This double-row bearing accommodates high radial loads, axial forces in both directions, and tilting moments.
Is this bearing equipped with seals?: No, this model is an open bearing without seals.
What material is the bearing cage made from?: The TN9 designation indicates a glass-fibre reinforced polyamide (plastic) cage.
What internal clearance does this bearing have?: This bearing features standard normal axial internal clearance (CN).