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The QJ 309 MA is a four-point contact angular contact ball bearing with a 45mm bore and 100mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 22500 lbf and operates smoothly at speeds up to 12000 RPM.
Its single-row design with an open seal ensures easy lubrication, while the brass cage enhances durability. The bearing performs reliably in temperatures ranging from -30°C to 110°C.
This model is interchangeable with SKF bearings, offering a practical replacement option. Suitable for applications like gear systems or industrial machinery where radial and axial loads are present.
Weighing 1.05kg, it balances strength and manageability. Compliant with RoHS and REACH standards for safe and eco-friendly use.
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Why Choose QJ 309 MA Bearing for Precision Tasks?
QJ 309 MA Bearing features a four-point contact design, allowing it to handle combined radial and axial loads efficiently.
Its chrome steel rings and balls ensure durability, while the brass cage maintains precise ball alignment.
With a dynamic radial load capacity of 22,500 lbf, it excels in high-performance applications.
The P6 tolerance class guarantees consistent precision, making it ideal for demanding tasks.
How Is QJ 309 MA Bearing Engineered for Reliability?
QJ 309 MA Bearing’s single-row construction and open design simplify installation and maintenance.
The chrome steel components resist wear, ensuring long-term reliability even under heavy loads.
Its maximum speed of 12,000 rpm makes it suitable for high-speed operations.
The brass cage reduces friction, contributing to smoother performance and extended service life.
Built for Reliability: QJ 309 MA Bearing
QJ 309 MA Bearing is crafted to withstand rigorous conditions, with a temperature range of -30° to 110°C.
Its precise chamfer dimension of 1.5 mm ensures easy integration into various assemblies.
The lubricated design reduces maintenance needs while enhancing operational efficiency.
With a static radial load capacity of 18,675 lbf, it delivers consistent performance in demanding environments.
Steel vs Ceramic Bearings: Strengths of QJ 309 MA Bearing
QJ 309 MA Bearing’s chrome steel construction offers excellent strength and wear resistance.
The brass cage provides stability, reducing vibration and noise during operation.
Its four-point contact design ensures optimal load distribution, enhancing durability.
With a weight of 1.05 kg, it balances robustness and ease of handling.
Industrial Uses of QJ 309 MA Bearing
QJ 309 MA Bearing is commonly used in machine tools, where its four-point contact design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even at high speeds, making it suitable for demanding industrial environments.
Where Is QJ 309 MA Bearing Used?
In automotive applications, QJ 309 MA Bearing supports gearboxes and wheel hubs, providing reliable performance under heavy loads. Its metric sizing and P6 tolerance class make it a versatile choice for precision automotive components.
Built for Heavy-Duty Use: QJ 309 MA Bearing
For automation systems, QJ 309 MA Bearing excels in robotic arms and conveyor systems, thanks to its durable chrome steel construction. The open seal design allows for easy lubrication, extending its service life in continuous operation.
Automotive vs Aerospace: Applications of QJ 309 MA Bearing
In aerospace, QJ 309 MA Bearing is used in landing gear systems, where its high dynamic load capacity is crucial. Meanwhile, in automotive settings, it ensures smooth performance in transmission systems, balancing speed and durability.
Perfect Fit for Automation: QJ 309 MA Bearing
QJ 309 MA Bearing is ideal for 3D printers and CNC machines, where precision and reliability are key. Its brass cage reduces friction, ensuring consistent performance in high-speed automation tasks.
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