What are the dimensions of this SKF ball bearing?

The bearing features a 55 mm bore diameter, a 120 mm outside diameter, and a width of 29 mm.

What does the C3 designation indicate?

C3 denotes greater radial internal clearance than standard, suited for thermal expansion or tight interference fits.

How do you mount a bearing with a tapered bore?

The tapered bore allows direct mounting onto a tapered shaft journal or using an adapter or withdrawal sleeve.

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

The double-row design accommodates angular misalignment and shaft deflections without increasing friction.

Is this SKF ball bearing sealed?

No, this is an open bearing without seals, allowing you to apply the appropriate lubricant for your setup.

SKF 1311 EKTN9/C3 double-row self-aligning ball bearing tapered 55x120x29 mm

Supplier number: SKF 1311 EKTN9/C3 | EAN 7316576625831

Recommended Retail Price €308.22

152.40 tax incl.

€125.95 excl. VAT (incl. all environmental contributions)

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

Ordered before 20:00 - delivered tomorrow 14/10/2026
Free shipping
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Reliable alignment with Skf

Practical benefits

Automatic shaft misalignment compensation: Two rows of balls accommodate static and dynamic misalignment, ensuring your machinery runs smoothly even under shaft deflection.
Fast and secure mounting: You easily mount the bearing onto smooth shafts using adapter or withdrawal sleeves thanks to the tapered bore design.
Reduced friction at speed: The reinforced polyamide cage and C3 internal clearance reduce heat build-up and friction, extending overall operational life.

In a nutshell

The right choise for

Keep your rotating machinery running smoothly and reliably with the Skf 1311 EKTN9/C3 double-row self-aligning ball bearing. Its two rows of balls automatically accommodate shaft deflections and angular misalignments, preventing premature bearing stress and unexpected downtime. The tapered bore allows you to mount the bearing quickly and accurately using adapter or withdrawal sleeves. a lightweight plastic cage reduces friction at high operational speeds, while the increased C3 internal clearance easily accommodates thermal expansion. Measuring 55X120X29 mm with an open design, this bearing allows you to apply the ideal lubricant for pumps, industrial fans, or conveyor systems.

Product information FAQ

€152.40

In stock - tax incl.

Key features according to our expert

Inner diameter: 55 mm
Width: 29 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: 120 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: 29 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: 120 mm
Basic static load rating: 18
Tolerance class: Normal
Retaining feature, inner ring: None
Radial internal clearance: C3
Cage: Non-metallic
Relubrication feature: Without
Reference speed: 11000
Lubricant: None
Sealing: Without
Material, bearing: Bearing steel
Locating feature, bearing outer ring: None
Coating: Without
Limiting speed: 7500
Bore diameter: 55
Basic dynamic load rating: 50.7
Outer diameter: 120

Brand SKF
01030267
EAN 7316576625831
Supplier number SKF 1311 EKTN9/C3

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF ball bearing?: The bearing features a 55 mm bore diameter, a 120 mm outside diameter, and a width of 29 mm.
What does the C3 designation indicate?: C3 denotes greater radial internal clearance than standard, suited for thermal expansion or tight interference fits.
How do you mount a bearing with a tapered bore?: The tapered bore allows direct mounting onto a tapered shaft journal or using an adapter or withdrawal sleeve.
What is the main benefit of a self-aligning bearing?: The double-row design accommodates angular misalignment and shaft deflections without increasing friction.
Is this SKF ball bearing sealed?: No, this is an open bearing without seals, allowing you to apply the appropriate lubricant for your setup.