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Single Row Cylindrical Roller Bearings With Inner Ring NJ 244 ECM
Single Row Cylindrical Roller Bearings With Inner Ring NJ 244 ECM

Single Row Cylindrical Roller Bearings With Inner Ring NJ 244 ECM

The NJ 244 ECM is a single row cylindrical roller bearing with a 220mm bore and 400mm outer diameter, crafted from robust chrome steel. It handles combined loads up to 238500 lbf and operates smoothly at speeds up to 2000 RPM.

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

With a width of 65mm and a weight of 38.2kg, it’s a sturdy choice for heavy-duty applications. The inner ring design provides stability, making it suitable for machinery with axial displacement needs.

Ideal for industrial equipment like gearboxes or pumps, this model is interchangeable with SKF bearings. Compliant with RoHS and REACH standards, it’s a safe and reliable option for various settings.

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Product Parameters

  • Part Number NJ 244 ECM
  • 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, roller 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 2000 rpm
  • Weight 38.2 kg
  • Shoulder Dia Of Outer Ring 342.15 mm
  • Raceway Diameter Of Inner Ring 268 mm

Features

Performance Features of NJ 244 ECM Bearing

NJ 244 ECM 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 keeps the rollers centred, reducing friction and extending service life.
With a maximum speed of 2,000 rpm, it balances durability and efficiency in demanding conditions.

NJ 244 ECM 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 dimensions and tolerances ensure a perfect fit in industrial applications.
This makes NJ 244 ECM Bearing a dependable choice for machinery requiring high load capacity.

Application

Key Fields for NJ 244 ECM Bearing
NJ 244 ECM Bearing is commonly used in heavy industrial machinery, such as large gearboxes and rolling mills, where its cylindrical roller design handles high radial loads efficiently. The brass cage ensures smooth operation even at speeds up to 2000 rpm.

In wind turbine applications, NJ 244 ECM Bearing supports the main shaft, offering reliable performance under varying weather conditions. Its chrome steel construction provides excellent durability in these demanding environments.

For mining equipment, NJ 244 ECM Bearing’s robust design makes it suitable for conveyors and crushers, where combined loads are frequent. The open seal type allows for easy lubrication, extending service life in harsh conditions.

Automotive manufacturing lines also benefit from NJ 244 ECM Bearing, particularly in presses and stamping machines. Its precise tolerances ensure consistent performance in high-precision operations.

In paper mill machinery, NJ 244 ECM Bearing’s ability to handle axial displacement makes it ideal for dryer sections. The grease or oil lubrication options adapt to different operational needs.

Q&A

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