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Single Row Cylindrical Roller Bearings With Inner Ring NJ 309 ECM

The NJ 309 ECM is a single row cylindrical roller bearing with a 45mm bore and 100mm outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 25200 lbf and reaches speeds of 8000 RPM.

Its brass cage keeps rollers centred for smooth operation, while the open design allows easy lubrication with grease or oil. The bearing performs reliably in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, offering a practical replacement option. Suitable for machinery like pumps or gearboxes where radial and axial loads are present.

Weighing 1.06kg, it balances durability with manageable size. Compliant with RoHS and REACH standards for safe industrial use.

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Description

Features

Application

Q&A

Product Parameters

Part Number NJ 309 ECM
Brand TFL
Interchangeable SKF
Bore Dia 45 mm
Bore Dia Tolerance -0.012mm to 0
Outer Dia 100 mm
Outer Dia Tolerance -0.015mm to 0
Width 25 mm
Width Tolerance -0.12mm to 0
Shoulder Dia Of Inner Ring 64.4 mm
Chamfer Dimension r1,2(min.) 1.5 mm
Chamfer Dimension r3,4(min.) 1.5 mm
Permissible Axial Displacement(max.) 1.7 mm
System of Measurement Metric
Roller Bearing Type Cylindrical
For Load Direction Combined
Construction Single Row
Inner Ring Type With Inner Ring
Seal Type Open
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Brass cage, roller centred
Dynamic Radial Load 25200 lbf
Static Radial Load 22500 lbf
Lubrication Grease, Oil
Temperature Range -30° to 110 °C
RoHS Compliant
REACH Compliant
Max Speed 8000 rpm
Weight 1.06 kg
Shoulder Dia Of Outer Ring 83.2 mm
Raceway Diameter Of Inner Ring 58.5 mm

Features

How Does NJ 309 ECM Bearing Handle Combined Loads?

NJ 309 ECM Bearing is crafted with chrome steel rings and rollers, offering robust resistance to both radial and axial loads.
Its dynamic radial load capacity reaches 25,200 lbf, ensuring dependable performance in varied applications.
The brass cage keeps the rollers centred, reducing friction and enhancing longevity.
With a maximum speed of 8,000 rpm, it delivers a balance of durability and efficiency.

Application

Industrial Uses of NJ 309 ECM Bearing
NJ 309 ECM Bearing is commonly used in heavy machinery like gearboxes and electric motors, where its cylindrical roller design handles both radial and axial loads effectively. The brass cage ensures smooth rotation even at high speeds, making it suitable for industrial applications.

Where Is NJ 309 ECM Bearing Used?
You’ll often find NJ 309 ECM Bearing in automotive transmissions, where its robust construction supports combined loads. Its metric sizing and chrome steel components make it a reliable choice for long-term performance.

Built for Heavy-Duty Use: NJ 309 ECM Bearing
NJ 309 ECM Bearing excels in conveyor systems, thanks to its high dynamic radial load capacity. The open design allows for easy lubrication, extending its lifespan in demanding environments.

Automotive vs Industrial: Applications of NJ 309 ECM Bearing
In automotive settings, NJ 309 ECM Bearing is ideal for wheel hubs and drivetrains, while in industrial machinery, it supports pumps and compressors. Its versatility and durability make it a go-to solution for various load conditions.

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