What are the dimensions of this inner ring?

The SKF inner ring has an inside diameter of 70 mm, an outside diameter of 80 mm, and a width of 54 mm.

What is the SKF IR 70X80X54 inner ring used for?

It provides a raceway for needle roller bearings when the shaft cannot be hardened and ground.

Which product series does this component belong to?

This component belongs to the standard SKF IR series of inner rings for needle roller bearings.

Does this inner ring feature a lubrication hole?

No, this specific inner ring does not have a lubrication hole.

SKF IR 70X80X54 inner ring for needle roller bearing 70 x 80 x 54 mm

Supplier number: SKF IR 70X80X54 | EAN 7316577127358

Recommended Retail Price €202.54

99.40 tax incl.

€82.15 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 2 products in stock.

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Precise performance with Skf inner rings

Practical benefits

Reliable raceway for shafts: You obtain a hardened, precision-ground raceway for needle bearings where the shaft cannot be hardened.
Smooth and safe mounting: Lead-in chamfers on both sides help you fit the ring smoothly while protecting mating seal lips.
Accommodates dual axial displacement: The wide design accommodates axial displacement in both directions to maintain continuous operating stability.

In a nutshell

The right choise for

With the Skf ir 70X80X54 inner ring, you provide a hardened and precision-ground raceway for needle roller bearings whenever the machine shaft cannot be hardened directly. This effectively prevents premature shaft wear across heavy gearboxes, transmissions, and industrial drive systems. Featuring a 70 mm inside diameter, an 80 mm outside diameter, and a 54 mm width, this ring reliably accommodates axial displacement in both directions during demanding operations. Thanks to the practical lead-in chamfers on both sides, you can slide the ring smoothly into position without damaging mating seal lips, keeping your machinery assembly running accurately.

Product information FAQ

€99.40

In stock - tax incl.

Key features according to our expert

Inner diameter: 70 mm
Outer diameter: 80 mm
Width: 54 mm

Product description

Inner rings for needle roller bearings are available as separate components. They are typically combined with needle roller and cage assemblies or drawn cup needle roller bearings in applications where the shaft cannot be hardened and ground. The inner rings in the IR series are the standard SKF inner rings for needle roller bearings. They are hardened and ground and have a precision ground raceway surface with a lead-in chamfer on both sides.

Enable full interchangeability of inner rings
Standard SKF inner rings for needle roller bearings
Accommodate axial displacement in both directions
Chamfers facilitate assembly and protect seal lips during mounting

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 70 mm
Outer diameter: 80 mm
Width: 54 mm
Relubrication feature: Without
Radial internal clearance: CN
Tolerance class: Normal
Raceway diameter: 80
Bore diameter: 70
Coating: Without
Material: Bearing steel
Outer diameter: 80
Special raceway feature: None

Brand SKF
01290977
EAN 7316577127358
Supplier number SKF IR 70X80X54

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this inner ring?: The SKF inner ring has an inside diameter of 70 mm, an outside diameter of 80 mm, and a width of 54 mm.
What is the SKF IR 70X80X54 inner ring used for?: It provides a raceway for needle roller bearings when the shaft cannot be hardened and ground.
Which product series does this component belong to?: This component belongs to the standard SKF IR series of inner rings for needle roller bearings.
Does this inner ring feature a lubrication hole?: No, this specific inner ring does not have a lubrication hole.