What are the exact dimensions of this ball bearing?

The bearing has an inside diameter of 45 mm, an outside diameter of 100 mm, and a width of 36 mm.

What is the benefit of a self-aligning ball bearing?

It compensates for angular misalignment and shaft deflection thanks to the spherical raceway in the outer ring.

What does the suffix ETN9 indicate?

It indicates an optimized internal design equipped with a glass-fibre reinforced polyamide cage.

Is this Skf bearing sealed?

No, this is an open bearing without integrated seals and requires appropriate lubrication during installation.

What type of shaft fits this bearing?

This bearing features a 45 mm cylindrical bore designed for direct mounting onto a straight shaft without an adapter sleeve.

SKF 2309 ETN9 double-row self-aligning ball bearing cylindrical 45x100x36 mm

Supplier number: SKF 2309 ETN9 | EAN 7316576620812

Recommended Retail Price €321.82

159.20 tax incl.

€131.57 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 5 products in stock.

Ordered before 20:00 - delivered tomorrow 13/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

Smooth rotation under misalignment with Skf

Practical benefits

Automatic compensation for misalignment: The spherical outer raceway allows you to accommodate shaft deflections and angular errors without extra friction.
Low friction at high speeds: The lightweight polyamide cage minimizes heat generation, ensuring you maintain smooth operation even at high rotational speeds.
Straightforward cylindrical mounting: Featuring a standard 45 mm cylindrical bore, you can fit this double-row bearing directly onto your shaft.

In a nutshell

The right choise for

With the Skf 2309 ETN9 double-row self-aligning ball bearing, you easily compensate for shaft deflections and angular misalignments during operation. Thanks to the spherical outer ring raceway, this open bearing accommodates alignment errors without unnecessary friction. Its lightweight glass-fibre reinforced polyamide cage minimizes friction and limits heat build-up at high rotational speeds. Featuring a 45 mm cylindrical bore, a 100 mm outside diameter, and a 36 mm width, you can mount this bearing directly onto straight shafts in pumps, fans, and industrial drive units.

Product information FAQ

€159.20

In stock - tax incl.

Key features according to our expert

Inner diameter: 45 mm
Width: 36 mm
Number of rows: 2
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Radial clearance: CN (Normal)
Material (cage): Plastic
Bore type: Cylindrical
Outer diameter: 100 mm

Product description

Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are insensitive to angular misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection.

Accommodate static and dynamic misalignment
Excellent high-speed performance
Excellent light load performance
Low friction

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 45 mm
Width: 36 mm
Number of rows: 2
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Radial clearance: CN (Normal)
Material (cage): Plastic
Bore type: Cylindrical
Outer diameter: 100 mm
Basic static load rating: 19.3
Tolerance class: Normal
Retaining feature, inner ring: None
Radial internal clearance: CN
Cage: Non-metallic
Relubrication feature: Without
Reference speed: 13000
Lubricant: None
Sealing: Without
Material, bearing: Bearing steel
Locating feature, bearing outer ring: None
Coating: Without
Limiting speed: 9000
Bore diameter: 45
Basic dynamic load rating: 63.7
Outer diameter: 100

Brand SKF
01030156
EAN 7316576620812
Supplier number SKF 2309 ETN9

Frequently asked questions about this product

Answered by specialists

What are the exact dimensions of this ball bearing?: The bearing has an inside diameter of 45 mm, an outside diameter of 100 mm, and a width of 36 mm.
What is the benefit of a self-aligning ball bearing?: It compensates for angular misalignment and shaft deflection thanks to the spherical raceway in the outer ring.
What does the suffix ETN9 indicate?: It indicates an optimized internal design equipped with a glass-fibre reinforced polyamide cage.
Is this Skf bearing sealed?: No, this is an open bearing without integrated seals and requires appropriate lubrication during installation.
What type of shaft fits this bearing?: This bearing features a 45 mm cylindrical bore designed for direct mounting onto a straight shaft without an adapter sleeve.