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The NU 221 ECJ is a single row cylindrical roller bearing with a 105mm bore and 190mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 67500 lbf and runs smoothly at speeds up to 4000 RPM.
Its open design allows for 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.
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 4.1kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable use.
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Performance Features of NU 221 ECJ Bearing
NU 221 ECJ Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 67500 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage keeps the rollers centred, reducing friction and extending service life.
With a maximum speed of 4000 rpm, it balances durability and efficiency in demanding conditions.
NU 221 ECJ 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 2.1 mm ensure easy installation and alignment.
This bearing is ideal for applications requiring high radial load capacity and long service life.
Industrial Uses of NU 221 ECJ Bearing
NU 221 ECJ Bearing is commonly used in heavy machinery like industrial gearboxes and large electric motors, where its cylindrical roller design handles high radial loads efficiently. The open seal type allows for easy lubrication, making it suitable for continuous operation environments.
In automotive applications, NU 221 ECJ Bearing supports components such as drivetrains and wheel hubs, providing reliable performance under combined loads. Its metric sizing ensures compatibility with a variety of vehicle designs, from trucks to agricultural equipment.
For automation systems, NU 221 ECJ Bearing’s steel cage and chrome steel construction offer durability in robotic arms and conveyor belts. The high dynamic radial load capacity makes it a dependable choice for repetitive motion tasks.
Where Is NU 221 ECJ Bearing Used?
NU 221 ECJ Bearing finds its place in wind turbines, where its ability to handle radial and axial displacement is crucial for smooth operation. The grease or oil lubrication options adapt well to varying environmental conditions.
In construction equipment, NU 221 ECJ Bearing’s robust design supports heavy loads in cranes and excavators. The wide temperature range ensures performance even in challenging outdoor settings.
Built for Heavy-Duty Use: NU 221 ECJ Bearing
NU 221 ECJ Bearing excels in paper mill machinery, where its high-speed capability and load tolerance are essential. The chrome steel rollers provide long-lasting performance in abrasive environments.
For mining applications, NU 221 ECJ Bearing’s sturdy construction withstands the demands of crushers and vibrating screens. Its easy maintenance design reduces downtime in remote locations.
Automotive vs Aerospace: Applications of NU 221 ECJ Bearing
In automotive systems, NU 221 ECJ Bearing is ideal for transmissions, offering smooth operation under high radial loads. Its compatibility with standard lubrication methods simplifies maintenance.
For aerospace components, NU 221 ECJ Bearing’s precision engineering ensures reliability in auxiliary power units. The lightweight yet durable design meets the stringent requirements of aviation standards.
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