What does the C3 clearance designation mean?

C3 indicates greater radial internal clearance than normal, accommodating interference fits and thermal expansion during operation.

How do you mount a bearing with a tapered bore?

A tapered bore bearing is typically mounted on a shaft using an adapter sleeve (such as H 211) or a withdrawal sleeve.

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

It automatically accommodates angular misalignment and shaft deflections relative to the housing, preventing excessive stress and friction.

What does the TN9 designation indicate?

TN9 indicates a glass-fibre reinforced polyamide cage, providing low friction, quiet running, and reduced weight.

Is this bearing sealed or pre-greased?

No, this is an open bearing without seals. You must apply the appropriate grease or oil for your application upon installation.

SKF 1211 EKTN9/C3 double-row self-aligning ball bearing tapered 55x100x21 mm

Supplier number: SKF 1211 EKTN9/C3 | EAN 7316576638398

Recommended Retail Price €166.56

82.40 tax incl.

€68.10 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 10/10/2026
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

Smooth rotation with Skf precision bearing

Practical benefits

Dynamic shaft misalignment compensation: The sphered outer ring raceway lets you easily accommodate shaft deflections and angular mounting errors.
Fast tapered bore mounting: You mount this bearing securely onto smooth or stepped shafts using adapter or withdrawal sleeves.
Low friction and heat: The polymer cage and C3 radial internal clearance ensure cool operation during high-speed rotational applications.

In a nutshell

The right choise for

With the Skf 1211 EKTN9/C3 double-row self-aligning ball bearing, you easily accommodate shaft deflections and angular misalignments in industrial drive systems, fans, and agricultural machinery. Thanks to the tapered bore, you can mount the bearing quickly and securely onto plain or stepped shafts using an adapter sleeve. The polyamide cage delivers smooth, low-friction rotation with quiet operation and reduced heat build-up. Additionally, the C3 radial internal clearance prevents binding caused by thermal shaft expansion during high-speed running. This open precision bearing provides a durable, reliable solution for demanding rotational applications.

Product information FAQ

€82.40

In stock - tax incl.

Key features according to our expert

Inner diameter: 55 mm
Width: 21 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: 55 mm
Width: 21 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: 10.6
Tolerance class: Normal
Retaining feature, inner ring: None
Radial internal clearance: C3
Cage: Non-metallic
Relubrication feature: Without
Reference speed: 14000
Lubricant: None
Sealing: Without
Material, bearing: Bearing steel
Locating feature, bearing outer ring: None
Coating: Without
Limiting speed: 9000
Bore diameter: 55
Basic dynamic load rating: 27.6
Outer diameter: 100

Brand SKF
01030287
EAN 7316576638398
Supplier number SKF 1211 EKTN9/C3

Frequently asked questions about this product

Answered by specialists

What does the C3 clearance designation mean?: C3 indicates greater radial internal clearance than normal, accommodating interference fits and thermal expansion during operation.
How do you mount a bearing with a tapered bore?: A tapered bore bearing is typically mounted on a shaft using an adapter sleeve (such as H 211) or a withdrawal sleeve.
What is the benefit of a self-aligning ball bearing?: It automatically accommodates angular misalignment and shaft deflections relative to the housing, preventing excessive stress and friction.
What does the TN9 designation indicate?: TN9 indicates a glass-fibre reinforced polyamide cage, providing low friction, quiet running, and reduced weight.
Is this bearing sealed or pre-greased?: No, this is an open bearing without seals. You must apply the appropriate grease or oil for your application upon installation.