What are the dimensions of this SKF ball bearing?

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

What does the tapered bore signify?

The tapered bore (1:12 taper) allows easy mounting on plain or stepped shafts using an adapter sleeve or withdrawal sleeve.

What does the C3 radial clearance mean?

The C3 designation indicates a radial internal clearance greater than normal, compensating for thermal expansion or sleeve mounting.

Is this self-aligning ball bearing sealed?

No, this is an open bearing without seals and requires external lubrication.

What material is the bearing cage made from?

The cage is made from glass-fibre reinforced polyamide (plastic), denoted by the TN9 suffix.

SKF 2309 EKTN9/C3 double-row self-aligning ball bearing tapered 45x100x36 mm

Supplier number: SKF 2309 EKTN9/C3 | EAN 7316576620843

Recommended Retail Price €321.82

159.20 tax incl.

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

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

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

↓ Documents (1) ✆ Talk to a specialist

Smooth operation with 2309 EKTN9/C3

Practical benefits

Automatic alignment of shafts: The double-row ball design accommodates shaft deflections and angular misalignments, ensuring you maintain stable and vibration-free machine operation.
Fast and secure mounting: Thanks to the tapered bore, you can mount the bearing easily and firmly onto shafts using an adapter sleeve.
Reduced friction at high speeds: The durable polymer cage and C3 radial clearance minimize heat buildup, helping you extend component life and reduce maintenance.

In a nutshell

The right choise for

Keep your rotating machinery operating smoothly and reliably with the Skf 2309 EKTN9/C3 self-aligning ball bearing. Its double-row design effortlessly accommodates shaft deflections and angular misalignments, preventing premature wear and excessive vibration. The tapered bore allows quick and secure mounting onto shafts using an adapter sleeve. Featuring a lightweight polymer cage and enlarged C3 radial clearance, it minimizes friction and heat buildup during high-speed operation. Measuring 45X100X36 mm, this open bearing delivers dependable performance and extended service life for your industrial drivetrains.

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: C3
Material (cage): Plastic
Bore type: Tapered
Outer diameter: 100 mm

Product description

Self-aligning ball bearings, with a tapered bore, 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. The tapered bore facilitates ease of mounting via adapter sleeves or withdrawal sleeves.

Ease of mounting via adapter sleeves or withdrawal sleeves
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: C3
Material (cage): Plastic
Bore type: Tapered
Outer diameter: 100 mm
Basic static load rating: 19.3
Tolerance class: Normal
Retaining feature, inner ring: None
Radial internal clearance: C3
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
01030337
EAN 7316576620843
Supplier number SKF 2309 EKTN9/C3

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF ball bearing?: The bearing has an inside diameter of 45 mm, an outside diameter of 100 mm, and a width of 36 mm.
What does the tapered bore signify?: The tapered bore (1:12 taper) allows easy mounting on plain or stepped shafts using an adapter sleeve or withdrawal sleeve.
What does the C3 radial clearance mean?: The C3 designation indicates a radial internal clearance greater than normal, compensating for thermal expansion or sleeve mounting.
Is this self-aligning ball bearing sealed?: No, this is an open bearing without seals and requires external lubrication.
What material is the bearing cage made from?: The cage is made from glass-fibre reinforced polyamide (plastic), denoted by the TN9 suffix.