What is the SKF H 311 adapter sleeve used for?

It is used to secure bearings with a tapered bore onto plain or stepped cylindrical shafts with a 50 mm diameter.

Which components are included with this adapter sleeve?

The SKF H 311 comes complete with a KM 11 lock nut and an MB 11 lock washer.

What are the main dimensions of the SKF H 311?

The adapter sleeve has a 50 mm bore diameter, a width of 45 mm, and an M55x2 thread designation.

What is the taper ratio of this adapter sleeve?

It features an external taper ratio of 1:12 to match bearings with tapered bores.

Can this adapter sleeve be used on plain and stepped shafts?

Yes, its slit design allows reliable mounting on both plain and stepped cylindrical shafts.

SKF H 311 tension sleeve for metric axles 50 x 45 mm M55x2

Supplier number: SKF H 311 | EAN 7316577008510

Recommended Retail Price €68.24

33.60 tax incl.

€27.77 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 10/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

Reliable bearing seating with the Skf adapter sleeve

Practical benefits

Quick and simple installation: You can effortlessly mount tapered-bore bearings on plain or stepped cylindrical shafts using the slotted design.
Complete securing hardware included: The supplied KM lock nut and MB lock washer ensure a dependable and firmly locked axial position.
Exact metric shaft fit: Designed with a 50 mm bore and M55X2 thread, you achieve precise component alignment on your shaft.

In a nutshell

The right choise for

With the Skf h 311 adapter sleeve, you can easily and precisely mount tapered-bore bearings onto plain or stepped cylindrical shafts. Thanks to the slotted design featuring a standard 1:12 taper ratio and a 50 mm bore diameter, you firmly clamp rolling bearings without needing shaft shoulders. The set comes complete with a km 11 lock nut and an mb 11 lock washer, reliably preventing axial displacement and simplifying clearance adjustments during installation and maintenance. Designed with a 45 mm width and M55X2 thread, this adapter sleeve ensures a dependable, stable fit in industrial machinery and drive lines.

Product information FAQ

€33.60

In stock - tax incl.

Key features according to our expert

Inner diameter: 50 mm
Width: 45 mm
Thread size*: M55 x 2

Product description

Adapter sleeves are the most commonly used components for locating bearings with a tapered bore onto a cylindrical seat as they can be used on plain shafts or stepped shafts. They are slit and are supplied complete with a KM lock nut and a MB lock washer.

Easy to install
Complete with lock nut
Complete with locking device

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 50 mm
Width: 45 mm
Thread size*: M55 x 2
Bore diameter: 50
Taper: 1:12
Holes for oil injection: Without
Thread designation: M55x2

Brand SKF
01230527
EAN 7316577008510
Supplier number SKF H 311

Frequently asked questions about this product

Answered by specialists

What is the SKF H 311 adapter sleeve used for?: It is used to secure bearings with a tapered bore onto plain or stepped cylindrical shafts with a 50 mm diameter.
Which components are included with this adapter sleeve?: The SKF H 311 comes complete with a KM 11 lock nut and an MB 11 lock washer.
What are the main dimensions of the SKF H 311?: The adapter sleeve has a 50 mm bore diameter, a width of 45 mm, and an M55x2 thread designation.
What is the taper ratio of this adapter sleeve?: It features an external taper ratio of 1:12 to match bearings with tapered bores.
Can this adapter sleeve be used on plain and stepped shafts?: Yes, its slit design allows reliable mounting on both plain and stepped cylindrical shafts.