What are the dimensions of this SKF ball bearing?

The bearing has a 55 mm bore diameter, a 120 mm outer diameter, and a width of 29 mm.

How do you mount a bearing with a tapered bore?

You mount it directly onto a tapered shaft or onto a cylindrical shaft using a suitable adapter sleeve.

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

This double-row bearing automatically accommodates static and dynamic angular misalignment or shaft deflections.

What material is the cage made from?

The cage (TN9) is made from glass-fibre reinforced polyamide.

Is the SKF 1311 EKTN9 sealed?

No, this is an open bearing without built-in seals.

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

Supplier number: SKF 1311 EKTN9 | EAN 7316576624520

Recommended Retail Price €308.22

152.40 tax incl.

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

On stock - immediately available | we have 2 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 through shaft deflections

Practical benefits

Automatic alignment compensation: The double-row raceway geometry accommodates angular misalignments to keep your machinery running smoothly without binding.
Secure tapered bore mounting: You achieve a rigid and accurate fit on adapter sleeves thanks to the Skf tapered inner design.
Low-friction polyamide cage: The reinforced plastic cage reduces heat generation and friction, supporting reliable high-speed operation.

In a nutshell

The right choise for

Keep your drive shafts and conveyor systems running smoothly with the Skf 1311 EKTN9 self-aligning ball bearing, even when facing shaft deflections or alignment errors. The double-row raceway automatically accommodates angular misalignment, preventing unnecessary friction, heat build-up, and premature wear. Featuring a tapered bore and dimensions of 55X120X29 mm, it mounts rigidly and accurately onto tapered shafts or using adapter sleeves. In addition, the glass-fibre reinforced polyamide cage (TN9) delivers quiet, low-friction operation at high speeds to keep your industrial machinery operating reliably.

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: CN (Normal)
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: CN (Normal)
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: CN
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
01030075
EAN 7316576624520
Supplier number SKF 1311 EKTN9

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF ball bearing?: The bearing has a 55 mm bore diameter, a 120 mm outer diameter, and a width of 29 mm.
How do you mount a bearing with a tapered bore?: You mount it directly onto a tapered shaft or onto a cylindrical shaft using a suitable adapter sleeve.
What is the main benefit of a self-aligning ball bearing?: This double-row bearing automatically accommodates static and dynamic angular misalignment or shaft deflections.
What material is the cage made from?: The cage (TN9) is made from glass-fibre reinforced polyamide.
Is the SKF 1311 EKTN9 sealed?: No, this is an open bearing without built-in seals.