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Single Row Cylindrical Roller Bearings With Inner Ring NJ 244 ECML

Single Row Cylindrical Roller Bearings With Inner Ring NJ 244 ECML

The NJ 244 ECML is a single row cylindrical roller bearing with a 220mm bore and 400mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 238500 lbf and runs smoothly at speeds up to 3000 RPM.

Its brass cage design ensures durability, while the open construction allows for easy lubrication with grease or oil. The bearing operates well in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for heavy-duty applications like industrial gearboxes or large machinery where high radial loads are present.

Weighing 36.8kg, it’s a robust option for demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NJ 244 ECML
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 220 mm
  • Bore Dia Tolerance -0.03mm to 0
  • Outer Dia 400 mm
  • Outer Dia Tolerance -0.04mm to 0
  • Width 65 mm
  • Width Tolerance -0.30mm to 0
  • Shoulder Dia Of Inner Ring 284 mm
  • Chamfer Dimension r1,2(min.) 4 mm
  • Chamfer Dimension r3,4(min.) 4 mm
  • Permissible Axial Displacement(max.) 2.3 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, inner or outer ring centred
  • Dynamic Radial Load 238500 lbf
  • Static Radial Load 290250 lbf
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 3000 rpm
  • Weight 36.8 kg
  • Shoulder Dia Of Outer Ring 343.7 mm
  • Raceway Diameter Of Inner Ring 268 mm
Single Row Cylindrical Roller Bearings With Inner Ring NJ 244 ECML dimension drawing
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Features

Performance Features of NJ 244 ECML Bearing

NJ 244 ECML Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 238,500 lbf, ensuring reliable performance in heavy-duty applications.

The brass cage design keeps the rollers aligned, reducing friction and extending service life.
With a maximum speed of 3,000 rpm, it balances durability and efficiency in demanding conditions.

NJ 244 ECML Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The precise chamfer dimensions of 4 mm ensure easy installation and alignment.
This makes NJ 244 ECML Bearing a practical choice for industrial applications.

Application

Industrial Uses of NJ 244 ECML Bearing
NJ 244 ECML Bearing is commonly used in heavy machinery like industrial gearboxes and large electric motors, where its cylindrical roller design handles combined loads efficiently. The brass cage ensures smooth operation even at high speeds up to 3000 rpm.

Where Is NJ 244 ECML Bearing Used?
You’ll often find NJ 244 ECML Bearing in wind turbine systems, where its robust construction and high dynamic radial load capacity are essential. Its chrome steel rollers provide durability in demanding environments.

Built for Heavy-Duty Use: NJ 244 ECML Bearing
NJ 244 ECML Bearing excels in steel mill equipment, thanks to its ability to withstand extreme radial and axial forces. The open seal design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of NJ 244 ECML Bearing
In automotive applications, NJ 244 ECML Bearing supports large drivetrain components, while in aerospace, it’s used in auxiliary power units. Its metric sizing ensures compatibility across industries.

Perfect Fit for Automation: NJ 244 ECML Bearing
NJ 244 ECML Bearing is ideal for robotic assembly lines, where precision and reliability are key. The inner ring design simplifies installation, reducing downtime during maintenance.

Q&A

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