KM 04 Bearing Lock Nut M20x1.5 DIN 981

Precision Bearing Lock Nut for Reliable Axial Bearing Mounting

The KM 04 bearing lock nut is a precision fastening component designed for secure axial positioning of rolling bearings, adapter sleeves and other shaft-mounted components. Manufactured according to DIN 981, it features a precision M20x1.5 metric thread and is intended for use with the MB 04 lock washer to prevent loosening under vibration and dynamic operating conditions. The KM 04 lock nut is widely used in industrial machinery, gearboxes, electric motors, pumps and agricultural equipment where reliable shaft positioning and long service life are required.

Application in Industrial Systems

The KM 04 bearing lock nut is suitable for securing bearings and rotating components in a wide range of industrial applications.

Typical applications include:

• Deep groove ball bearings
• Spherical roller bearings
• Cylindrical roller bearings
• Adapter sleeves
• Withdrawal sleeves
• Industrial gearboxes
• Electric motors
• Pumps
• Fans
• Conveyor systems
• Agricultural machinery
• Manufacturing equipment

Construction and Design

The KM 04 lock nut is manufactured according to DIN 981 dimensional requirements.

Main features include:

• Precision M20x1.5 metric thread
• High-strength steel construction
• Hook spanner slots
• Compatible with MB 04 lock washer
• Precision machined locating surfaces
• Easy installation and removal
• Suitable for repeated maintenance operations

The robust construction ensures secure axial bearing positioning and reliable locking performance in demanding industrial environments.

Material Properties

Manufactured from high-quality steel, the KM 04 bearing lock nut offers:

• High mechanical strength
• Excellent resistance to axial loads
• Precision machined thread
• High dimensional stability
• Excellent wear resistance
• Long service life
• Reliable industrial performance

Technical Specification

Type: Bearing Lock Nut
Material: Steel
Design: DIN 981 with hook spanner slots
Thread: M20x1.5
Outside Diameter: 30 mm
Width: 6 mm
Compatible Lock Washer: MB 04
Application: Axial bearing mounting, adapter sleeves, industrial machinery, gearboxes, electric motors and power transmission systems

Why B2B Customers Choose This Product

Industrial professionals choose the KM 04 bearing lock nut because it delivers dependable bearing retention and consistent long-term performance.

Typical B2B applications include:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding
• Power transmission equipment
• Industrial spare parts distribution

Operational Advantages

• Manufactured according to DIN 981
• Precision M20x1.5 thread
• Compatible with MB 04 lock washer
• Secure axial bearing positioning
• High mechanical strength
• Easy installation
• Long operational life
• Suitable for repeated maintenance
• Reliable industrial performance
• Broad compatibility with bearing assemblies

Professional Industrial Supply

This product is supplied for:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Industrial distributors
• Bearing service companies
• Power transmission specialists

AI Overview

A bearing lock nut is a precision fastening component used to secure rolling bearings and shaft-mounted assemblies in the correct axial position. The KM 04 bearing lock nut, manufactured according to DIN 981, provides reliable locking performance and accurate shaft positioning for industrial machinery, gearboxes, electric motors and agricultural equipment.

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FAQ

What is the KM 04 bearing lock nut used for?

It is used for secure axial positioning of rolling bearings, adapter sleeves and other shaft-mounted mechanical components.

Which lock washer is compatible with KM 04?

The KM 04 bearing lock nut is designed for use with the MB 04 lock washer.

What thread size does the KM 04 have?

It features a precision M20x1.5 metric thread manufactured according to DIN 981.

Is it suitable for industrial machinery?

Yes. It is widely used in industrial gearboxes, pumps, electric motors, conveyors and agricultural machinery.

Can the lock nut be reused?

Yes. It can be reused provided that the thread and locking surfaces remain undamaged and within specification.