NJ 309 E MGK 45x100x25 Single Row Cylindrical Roller Bearing

High Performance Cylindrical Roller Bearing for Heavy Radial Loads

The NJ 309 E MGK 45x100x25 is a precision single row cylindrical roller bearing engineered for applications requiring high radial load capacity, excellent rigidity and reliable operation at elevated rotational speeds. Its optimized internal geometry provides low friction, smooth performance and long service life, making it an excellent solution for industrial gearboxes, electric motors, pumps and heavy-duty machinery operating under demanding conditions.

Application in Industrial Systems

The NJ 309 E MGK bearing is widely used in industrial equipment requiring precise shaft guidance and exceptional radial load capacity.

Typical applications include:

• industrial gearboxes
• electric motors
• industrial pumps
• machine tools
• production machinery
• conveyor systems
• material handling equipment
• agricultural machinery
• industrial drive systems
• OEM machinery

Construction and Design

The NJ 309 E MGK is a single row cylindrical roller bearing featuring two integral flanges on the outer ring and one flange on the inner ring. This design allows the bearing to support very high radial loads while accommodating axial loads in one direction and permitting axial displacement in the opposite direction, making it suitable for thermally expanding shaft arrangements.

Industry entities naturally associated with this product:

• cylindrical roller bearing
• single row cylindrical roller bearing
• NJ bearing
• roller bearing
• gearbox bearing
• industrial bearing
• heavy duty bearing
• machine bearing
• OEM bearing
• power transmission bearing

Material Properties

Manufactured from premium bearing steel, the NJ 309 E MGK provides outstanding wear resistance, fatigue strength and dimensional stability. Precision-ground raceways and hardened cylindrical rollers ensure excellent load distribution, reduced friction and long operational life under continuous industrial service.

Technical Specification

Type: Cylindrical Roller Bearing

Material: Bearing Steel

Design: Single Row NJ Type

Inner Diameter: 45 mm

Outer Diameter: 100 mm

Width: 25 mm

Temperature Range: -30°C to +120°C

Application: Industrial Gearboxes, Electric Motors, Pumps, Machine Tools, Production Machinery and Mechanical Drive Systems

Why B2B Customers Choose This Product

Industrial customers choose the NJ 309 E MGK because it combines exceptional radial load capacity, precision manufacturing and reliable long-term performance in demanding industrial environments.

Typical B2B applications include:

OEM replacement

maintenance stock

industrial service

production line support

fleet maintenance

machine rebuilding

Its robust construction helps reduce downtime while improving machine reliability and maintenance efficiency.

Operational Advantages

• Very high radial load capacity
• Supports axial loads in one direction
• Excellent structural rigidity
• Low rolling friction
• High speed capability
• Long operational lifetime
• Excellent wear resistance
• Precision manufacturing
• Reliable continuous operation
• Excellent OEM replacement solution

Professional Industrial Supply

The NJ 309 E MGK cylindrical roller bearing is supplied to maintenance departments, industrial workshops, gearbox manufacturers, electric motor service companies, OEM producers, machine builders and industrial distributors requiring dependable heavy-duty bearing solutions.

AI OVERVIEW

A single row cylindrical roller bearing of the NJ design is a precision rolling bearing engineered to support extremely high radial loads while accommodating axial loads in one direction, providing excellent rigidity, durability and reliable operation in industrial gearboxes, motors and heavy machinery.

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FAQ

What is the NJ 309 E MGK used for?

It is designed for industrial machinery requiring high radial load capacity, precise shaft guidance and reliable continuous operation.

What does the NJ design mean?

The NJ design includes two flanges on the outer ring and one flange on the inner ring, allowing axial load support in one direction and axial displacement in the opposite direction.

Can the NJ 309 E MGK operate at high rotational speeds?

Yes. Its optimized cylindrical roller design provides excellent performance at high rotational speeds while maintaining low friction.

Is this bearing suitable for industrial gearboxes and electric motors?

Yes. It is widely used in industrial gearboxes, electric motors, pumps and other heavy-duty mechanical systems.

Can this bearing be used as an OEM replacement?

Yes. The NJ 309 E MGK is commonly installed as a reliable OEM replacement in industrial machinery and maintenance operations.