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Single Row Cylindrical Roller Bearings With Inner Ring NU 228 ECJ
Single Row Cylindrical Roller Bearings With Inner Ring NU 228 ECJ

Single Row Cylindrical Roller Bearings With Inner Ring NU 228 ECJ

The NU 228 ECJ is a single row cylindrical roller bearing with a 140mm bore and 250mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 101250 lbf and runs smoothly at speeds up to 3000 RPM.

Its open design allows easy lubrication with grease or oil, while the steel cage ensures stable performance. The bearing operates well in temperatures from -30°C to 110°C, making it versatile for various conditions.

With a width of 42mm and chamfer dimensions of 3mm, it fits securely in tight spaces. This model is interchangeable with SKF bearings, offering a reliable replacement option.

Ideal for heavy-duty applications like industrial machinery or gearboxes, where radial and axial loads are present. Compliant with RoHS and REACH standards, it’s a safe and robust choice. Weighing 8.54kg, it’s sturdy yet manageable for its size.

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Product Parameters

  • Part Number NU 228 ECJ
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.025mm to 0
  • Outer Dia 250 mm
  • Outer Dia Tolerance -0.03mm to 0
  • Width 42 mm
  • Width Tolerance -0.25mm to 0
  • Chamfer Dimension r1,2(min.) 3 mm
  • Chamfer Dimension r3,4(min.) 3 mm
  • Permissible Axial Displacement(max.) 2.5 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 Steel cage, roller centred
  • Dynamic Radial Load 101250 lbf
  • Static Radial Load 114750 lbf
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 3000 rpm
  • Weight 8.54 kg
  • Shoulder Dia Of Outer Ring 215.78 mm
  • Raceway Diameter Of Inner Ring 169 mm

Features

Performance Features of NU 228 ECJ Bearing

NU 228 ECJ Bearing is built with chrome steel rings and rollers, offering excellent resistance to combined loads.
Its dynamic radial load capacity reaches 101250 lbf, ensuring reliable performance in heavy-duty applications.

The steel cage keeps the rollers centred, reducing friction and enhancing durability.
With a maximum speed of 3000 rpm, it delivers efficient operation under demanding conditions.

NU 228 ECJ Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, extending maintenance intervals.

Application

Industrial Uses of NU 228 ECJ Bearing
NU 228 ECJ Bearing is commonly used in heavy machinery like industrial gearboxes and large pumps, where its cylindrical roller design handles high radial loads efficiently. The open seal type allows for easy lubrication, extending its service life in demanding conditions.

In automotive applications, NU 228 ECJ Bearing supports components such as drivetrains and axle systems, thanks to its robust chrome steel construction. Its metric sizing ensures compatibility with a variety of vehicle designs, making it a versatile choice.

For automation systems, NU 228 ECJ Bearing provides reliable performance in robotic arms and conveyor belts, where precision and durability are key. The steel cage design enhances stability, even at high speeds up to 3000 rpm.

Where Is NU 228 ECJ Bearing Used?
NU 228 ECJ Bearing finds its place in wind turbines, where its ability to handle combined loads ensures smooth operation. The grease or oil lubrication options make it adaptable to different environmental conditions.

In construction equipment, NU 228 ECJ Bearing is ideal for cranes and excavators, thanks to its high static and dynamic load capacities. The wide temperature range also makes it suitable for use in varying climates.

Built for Heavy-Duty Use: NU 228 ECJ Bearing
NU 228 ECJ Bearing excels in mining machinery, where its sturdy design withstands harsh operating conditions. The chamfer dimensions and permissible axial displacement add to its ease of installation.

For marine applications, NU 228 ECJ Bearing offers reliable performance in ship propulsion systems. Its corrosion-resistant materials ensure longevity, even in salty environments.

Automotive vs Aerospace: Applications of NU 228 ECJ Bearing
In automotive settings, NU 228 ECJ Bearing is often found in transmission systems, where its high-speed capability is a plus. The aerospace industry values it for auxiliary power units, thanks to its precision engineering.

For railway applications, NU 228 ECJ Bearing supports axle boxes, ensuring smooth and safe operation. Its compliance with RoHS and REACH standards makes it an environmentally friendly choice.

Q&A

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