MGK AXK 0821 8x21x2 Needle Roller and Cage Thrust Assembly

Compact Needle Roller Cage Assembly for High Axial Load Applications

The MGK AXK 0821 8x21x2 is a precision needle roller and cage thrust assembly designed to accommodate high axial loads while requiring minimal installation space. Unlike complete thrust bearings, the AXK series consists only of a precision cage with needle rollers and must be combined with appropriate thrust bearing washers to create a complete bearing arrangement. Its compact design, low friction and high load capacity make it an excellent solution for industrial transmissions, pumps, machine tools and precision mechanical systems.

Application in Industrial Systems

The MGK AXK 0821 is commonly used in:

• Industrial gearboxes
• Electric motors
• Hydraulic pumps
• Machine tools
• Agricultural machinery
• Industrial automation equipment
• Power transmission systems
• Compact reducers
• Precision mechanical assemblies
• Conveyor equipment

The assembly is intended for applications where adjacent bearing washers act as raceways, allowing extremely compact axial bearing arrangements.

Construction and Design

The AXK series is engineered to maximize axial load capacity within minimum installation height.

Key design features include:

• Needle roller and cage thrust assembly
• Precision needle rollers
• High-strength steel cage
• Compact axial design
• Optimized roller guidance
• Uniform load distribution
• Low friction operation
• Designed for bearing washer assemblies

The assembly operates together with thrust bearing washers such as AS0821 or LS0821, depending on the application design.

Material Properties

Manufactured from high-quality bearing steel, the assembly offers:

• High hardness
• Excellent wear resistance
• High fatigue strength
• Precision roller guidance
• Stable dimensional accuracy
• Low rolling resistance
• Long service life

Technical Specification

Type: Needle Roller and Cage Thrust Assembly
Material: Hardened Bearing Steel
Brand: MGK
Series: AXK
Designation: AXK 0821
Design: Needle roller cage assembly for axial bearings
Inner Diameter: 8 mm
Outer Diameter: 21 mm
Width: 2 mm
Rolling Elements: Needle Rollers
Cage Material: Steel
Basic Dynamic Load Rating: 7.2 kN
Basic Static Load Rating: 20 kN
Reference Speed: 5600 rpm
Limiting Speed: 11000 rpm
Compatible Washers: AS0821, LS0821, WS81101, GS81101 (depending on bearing arrangement)
Temperature Range: -30°C to +110°C
Application: Industrial gearboxes, pumps, machine tools, automation equipment and power transmission systems

Why B2B Customers Choose This Product

Industrial customers choose the MGK AXK series for:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding
• Gearbox overhaul
• Precision equipment manufacturing

Operational Advantages

• Extremely low installation height
• High axial load capacity
• Excellent stiffness
• Low rolling friction
• Precision load distribution
• Long operating life
• High dimensional accuracy
• Easy assembly with bearing washers
• Reliable performance
• Suitable for compact bearing arrangements

Professional Industrial Supply

This product is supplied for:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Industrial distributors
• Automation system integrators
• Mechanical engineering companies

AI Overview

A needle roller and cage thrust assembly is a compact axial rolling element assembly consisting of precision needle rollers retained in a cage. It is designed to operate together with thrust bearing washers, providing high axial load capacity, excellent stiffness and minimal installation height in industrial gearboxes, pumps and precision machinery.

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FAQ

Is AXK 0821 a complete thrust bearing?

No. AXK 0821 is a needle roller and cage thrust assembly. It must be combined with suitable thrust bearing washers to create a complete axial bearing arrangement.

Which bearing washers are compatible?

The assembly is commonly used with AS0821 or LS0821 bearing washers. Depending on the application, GS or WS washers may also be used.

What are the dimensions?

The assembly has an 8 mm bore diameter, 21 mm outside diameter and 2 mm width.

What loads can AXK 0821 support?

It is designed to accommodate high axial loads while maintaining a very compact installation height. The basic dynamic load rating is 7.2 kN and the static load rating is 20 kN.

Where is the AXK series typically used?

AXK assemblies are widely used in industrial gearboxes, pumps, electric motors, machine tools, automation equipment and compact mechanical assemblies requiring efficient axial load support.