Which nuts is the SKF HN 1 suitable for?

This hook spanner fits lock nuts with an outer diameter of 20 to 22 mm, such as KM 1, KMK 1, N 01, and DIN 1804.

What is the primary use of this hook spanner?

You use it to tighten and loosen lock nuts when mounting and adjusting bearings on shafts, adapter sleeves, or withdrawal sleeves.

Does the handle provide a secure grip around oil and grease?

Yes, the sturdy plastic handle is resistant to oil, grease, and dirt, ensuring a secure and safe grip.

How do you quickly identify the spanner size?

The size designation is laser-engraved onto the tool for quick and easy identification.

SKF HN 1 hook spanner

Supplier number: SKF HN 1 | EAN 7316576610707

27.60 tax incl.

€22.81 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

Ordered before 20:00 - delivered as of 14/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Accurate tightening for small locknuts

Practical benefits

Damage-free locknut fastening: You effortlessly loosen and secure locknuts with an outer diameter of 20 to 22 mm without marking shafts.
Oil-resistant comfortable grip: The sturdy plastic handle resists grease, dirt, and oil to provide you with consistent and firm control.
Skf hook spanner design: Featuring a laser-engraved marking and a drilled hanging hole, you locate and store this spanner with ease.

In a nutshell

The right choise for

With the Skf hn 1 hook spanner, you tighten and loosen small lock nuts smoothly and securely without risking damage to shafts or threads. This size 1 hook spanner is tailored for lock nuts with an outer diameter of 20 to 22 mm, including km 1, kmk 1, n 01, and din 1804. It gives you positive engagement to adjust and mount bearings on tapered shaft seats, adapter sleeves, or withdrawal sleeves. The durable plastic handle resists oil, grease, and dirt to deliver a firm, comfortable grip in busy workshops. Thanks to the laser-engraved marking and drilled hanging hole, you quickly identify and neatly store your tool.

Product information FAQ

€27.60

tax incl.

Key features according to our expert

Product description

The SKF Hook spanner, size 1, is designed for easy tightening and loosening of lock nuts. They are used to secure and adjust bearings on tapered journals, adapter sleeves and withdrawal sleeves. They fit on a variety of lock nuts with outer diameter(s) 20 - 22 mm. To be more specific for locknuts: KM 1, KMK 1, N 01 and (DIN 1804).

Optimised design allow use in narrow spaces while maintaining maximum force
Sturdy plastic handle that is oil, dirt and grease resistant to provide a better grip
Drilled hole for easy hanging storage
Laser-engraved designation for easy identification
They fit on a variety of locknuts with outer diameter(s) 20 - 22mm

Documents

⤓ Technical data sheet PDF

All Features

Coating: Black phosphated
Fits on lock nuts inside skf split pillow block housings (snl): No
Outer diameter lock nut range: 20 to 22 mm
Part of a kit: No
Minimum number of lock nut slots: 1
Spanner following din 1810 size: 20 to 22 mm
Material handle: Durable soft plastic
Allows bearing mounting: Yes, angle method or with clearance reduction measurement
Material: Medium carbon steel, hardened and tempered
Thickness: 3
Length: 109
Color code: Black, with red handle
Working length: 100

Brand SKF
01900277
EAN 7316576610707
Supplier number SKF HN 1

Frequently asked questions about this product

Answered by specialists

Which nuts is the SKF HN 1 suitable for?: This hook spanner fits lock nuts with an outer diameter of 20 to 22 mm, such as KM 1, KMK 1, N 01, and DIN 1804.
What is the primary use of this hook spanner?: You use it to tighten and loosen lock nuts when mounting and adjusting bearings on shafts, adapter sleeves, or withdrawal sleeves.
Does the handle provide a secure grip around oil and grease?: Yes, the sturdy plastic handle is resistant to oil, grease, and dirt, ensuring a secure and safe grip.
How do you quickly identify the spanner size?: The size designation is laser-engraved onto the tool for quick and easy identification.