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-QJ-1288-N2MA-Dimensions.webp)
The QJ 1288 N2MA is a four-point contact angular contact ball bearing with a large 440mm bore and 790mm outer diameter, built from sturdy chrome steel. It handles heavy radial loads up to 315,000 lbf and operates at speeds up to 1200 RPM.
Its single-row design with brass cage ensures smooth rotation, while the open seal allows for easy lubrication. The bearing performs reliably 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 machinery or large gear systems where high radial loads are present.
Weighing 350kg, it’s a robust component designed for long-term use. Compliant with RoHS and REACH standards for safety and environmental considerations.
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Performance Features of QJ 1288 N2MA Bearing
QJ 1288 N2MA Bearing is built with chrome steel rings and balls, offering high resistance to radial loads.
Its dynamic radial load capacity reaches 315,000 lbf, making it suitable for heavy-duty applications.
The brass cage ensures smooth ball movement, reducing friction and enhancing durability.
With a maximum speed of 1,200 rpm, it provides reliable performance in demanding conditions.
QJ 1288 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 P6 tolerance class ensures precision, making it ideal for applications requiring high accuracy.
Its robust construction and materials contribute to a long service life with minimal maintenance.
Industrial Uses of QJ 1288 N2MA Bearing
QJ 1288 N2MA Bearing is commonly used in heavy machinery like wind turbines and large industrial gearboxes, where its four-point contact design handles combined radial and axial loads efficiently.
The brass cage ensures smooth operation even under high stress, making it suitable for continuous use in demanding environments.
Where Is QJ 1288 N2MA Bearing Used?
In automotive manufacturing, QJ 1288 N2MA Bearing supports large rotating components such as presses and rolling mills, thanks to its high load capacity.
Its metric sizing and P6 tolerance class make it a reliable choice for precision applications in European and Asian markets.
Built for Heavy-Duty Use: QJ 1288 N2MA Bearing
QJ 1288 N2MA Bearing excels in construction equipment like cranes and excavators, where durability and load-bearing performance are critical.
The chrome steel construction and lubricated design ensure long service life even in harsh outdoor conditions.
Automotive vs Aerospace: Applications of QJ 1288 N2MA Bearing
In automotive applications, QJ 1288 N2MA Bearing is ideal for large transmission systems, while in aerospace, it supports auxiliary machinery due to its high static load rating.
The wide temperature range allows it to perform reliably in both ground and flight conditions.
Key Fields for QJ 1288 N2MA Bearing
QJ 1288 N2MA Bearing is often found in mining equipment, where its robust design handles extreme loads and vibrations.
The open seal type facilitates easy maintenance, reducing downtime in remote operational sites.
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-QJ-1288-N2MA-Drawing.webp)