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-QJ-1284-N2MA-Dimensions.webp)
The QJ 1284 N2MA is a large four-point contact angular contact ball bearing, measuring 420mm in bore diameter and 760mm in outer diameter, with a width of 150mm. Made from chrome steel, it’s built to handle heavy radial loads up to 321,750 lbf.
Its single-row design and brass cage ensure smooth operation, even at speeds up to 1300 RPM. The open seal type allows for easy lubrication, making maintenance straightforward.
This bearing is interchangeable with SKF models, offering a reliable replacement option. Ideal for heavy machinery or industrial equipment where high radial loads are common.
Weighing 315kg, it’s a robust choice for demanding applications. Compliant with RoHS and REACH standards, it operates in temperatures from -30°C to 110°C.
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Performance Features of QJ 1284 N2MA Bearing
QJ 1284 N2MA Bearing is built with chrome steel rings and balls, offering excellent resistance to heavy radial loads.
Its dynamic radial load capacity reaches 321750 lbf, making it suitable for demanding industrial applications.
The brass cage ensures smooth ball movement, reducing friction and enhancing durability.
With a maximum speed of 1,300 rpm, it provides reliable performance under high-stress conditions.
QJ 1284 N2MA Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance over time.
The precision P6 tolerance class ensures accurate and smooth operation.
This makes QJ 1284 N2MA Bearing a dependable choice for heavy machinery and equipment.
Industrial Uses of QJ 1284 N2MA Bearing
QJ 1284 N2MA Bearing is commonly used in heavy industrial machinery, such as large gearboxes and rolling mills, where its four-point contact design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even under high stress and variable speeds.
In automotive applications, QJ 1284 N2MA Bearing supports large drivetrain components, providing stability in heavy-duty vehicles like trucks and buses. Its metric sizing and P6 tolerance make it a reliable choice for precision engineering.
For wind turbines, QJ 1284 N2MA Bearing’s robust construction and high load capacity make it ideal for rotor shaft support. The chrome steel rings and balls offer durability in harsh outdoor conditions, ensuring long service life.
In construction equipment, QJ 1284 N2MA Bearing is often found in cranes and excavators, where its ability to handle heavy loads and misalignment is crucial. The lubricated design reduces maintenance needs in dusty or wet environments.
Automation systems benefit from QJ 1284 N2MA Bearing’s precision and reliability, particularly in robotic arms and large-scale conveyor systems. The open seal type allows for easy inspection and re-lubrication during routine checks.
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-QJ-1284-N2MA-Drawing.webp)