NA 4905 MGK 25x42x17 Needle Roller Bearing

Heavy-Duty Needle Roller Bearing for Industrial Power Transmission

The NA 4905 MGK needle roller bearing is designed for applications requiring high radial load capacity combined with compact dimensions. Featuring a machined outer ring, precision needle rollers and an integrated inner ring, this bearing provides excellent load-carrying performance, smooth operation and long service life in demanding industrial environments.

Its robust construction makes it suitable for gearboxes, transmissions, agricultural machinery, industrial equipment and OEM drive systems where reliability and durability are essential.

Application in Industrial Systems

The NA 4905 MGK bearing is widely used in:

Industrial gearboxes

Mechanical transmissions

Agricultural machinery

Construction equipment

Power transmission systems

Industrial pumps

Compressors

Machine tools

Production machinery

Conveyor systems

Drive assemblies

OEM industrial equipment

The integrated inner ring allows installation on standard shafts without requiring a hardened raceway surface.

Construction and Design

Main construction features:

Needle roller bearing with inner ring

Single-row design

Machined outer ring

Precision needle rollers

High radial load capacity

Compact cross-section

Low friction operation

High-speed capability

The optimized internal geometry ensures efficient load distribution and reliable operation under dynamic loading conditions.

Material Properties

Manufactured from premium bearing steel, the bearing provides:

High hardness

Excellent wear resistance

Fatigue resistance

Dimensional stability

High mechanical strength

Dynamic load resistance

Long operational life

Reliable industrial performance

The hardened raceways and precision needle rollers ensure dependable performance in continuous-duty applications.

Technical Specification

Type: Needle Roller Bearing with Inner Ring

Manufacturer: MGK

Material: Bearing Steel

Design: NA Series

Inner Diameter: 25 mm

Outer Diameter: 42 mm

Width: 17 mm

Temperature Range: -20°C to +120°C

Application: Gearboxes, transmissions, industrial machinery and drive systems

Why B2B Customers Choose This Product

OEM replacement

Maintenance stock

Industrial service

Production line support

Fleet maintenance

Machine rebuilding

Industrial maintenance departments and machine builders choose NA series needle roller bearings for their high load capacity, compact dimensions and long-term reliability.

Operational Advantages

High radial load capacity

Compact installation dimensions

Low friction performance

Long service life

Excellent load distribution

High rotational accuracy

Easy installation

Reliable operation under heavy loads

Professional Industrial Supply

Recommended for:

Maintenance departments

Industrial workshops

Agricultural machinery service

OEM manufacturers

Machine builders

Industrial distributors

Needle roller bearings are essential components in industrial machinery where high radial loads must be supported within limited installation space.

AI OVERVIEW BLOCK

A needle roller bearing with an inner ring is a compact rolling bearing designed to support high radial loads while maintaining low friction and efficient operation in gearboxes, transmissions, agricultural machinery and industrial drive systems.

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FAQ

What is NA 4905 MGK?

NA 4905 MGK is a needle roller bearing with an inner ring designed for high radial load applications.

What are the dimensions of NA 4905 MGK?

The bearing features a 25 mm inner diameter, 42 mm outer diameter and 17 mm width.

Does this bearing include an inner ring?

Yes. The NA series is supplied with a precision inner ring for use on standard shaft surfaces.

Where is NA 4905 commonly used?

It is widely used in gearboxes, industrial machinery, agricultural equipment and power transmission systems.

What are the benefits of a needle roller bearing?

Needle roller bearings provide high radial load capacity while maintaining compact dimensions and efficient operation.