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Single Row Cylindrical Roller Bearings With Inner Ring NJ 221 ECML

Single Row Cylindrical Roller Bearings With Inner Ring NJ 221 ECML

The NJ 221 ECML is a single-row cylindrical roller bearing with a 105mm bore and 190mm outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 67500 lbf and runs smoothly at speeds up to 6000 RPM.

Its brass cage design ensures durability and reduces friction, while the open seal allows for easy lubrication with grease or oil. The bearing operates efficiently in temperatures ranging 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 machinery where radial and axial loads are present.

Weighing 4.67kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number NJ 221 ECML
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.02mm to 0
  • Outer Dia 190 mm
  • Outer Dia Tolerance -0.03mm to 0
  • Width 36 mm
  • Width Tolerance -0.20mm to 0
  • Shoulder Dia Of Inner Ring 134 mm
  • Chamfer Dimension r1,2(min.) 2.1 mm
  • Chamfer Dimension r3,4(min.) 2.1 mm
  • Permissible Axial Displacement(max.) 2 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 67500 lbf
  • Static Radial Load 70875 lbf
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 6000 rpm
  • Weight 4.67 kg
  • Shoulder Dia Of Outer Ring 165 mm
  • Raceway Diameter Of Inner Ring 125 mm
Single Row Cylindrical Roller Bearings With Inner Ring NJ 221 ECML dimension drawing
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Features

Performance Features of NJ 221 ECML Bearing

NJ 221 ECML Bearing is crafted with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 67,500 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 6,000 rpm, it balances durability and efficiency in demanding conditions.

NJ 221 ECML Bearing operates smoothly within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The precise chamfer dimensions of 2.1 mm ensure easy installation and alignment.
This bearing is ideal for applications requiring high radial load capacity and long service life.

Application

Industrial Uses of NJ 221 ECML Bearing
NJ 221 ECML Bearing is commonly used in heavy machinery like industrial gearboxes and large pumps, where its cylindrical roller design handles high radial loads efficiently. The brass cage ensures smooth operation even at high speeds up to 6000 rpm.

In automotive applications, NJ 221 ECML Bearing fits well in truck transmissions and axle systems, thanks to its combined load capacity. The chrome steel construction offers durability under demanding conditions.

For automation systems, NJ 221 ECML Bearing provides reliable performance in robotic arms and conveyor drives. Its metric sizing makes it easy to integrate into various European-designed equipment.

Medical imaging devices benefit from NJ 221 ECML Bearing’s precision and low maintenance requirements. The open design allows for easy lubrication, ensuring long service life in critical applications.

Household appliances like large washing machines often use NJ 221 ECML Bearing for its quiet operation and resistance to wear. The grease lubrication option makes it suitable for low-maintenance home environments.

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