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The NRT 850 A is a super-precision cylindrical roller bearing designed for combined loads, with a large 850mm bore and 1095mm outer diameter. Made from robust chrome steel, it handles radial loads up to 473 kN and axial loads up to 415 kN.
Its brass cage ensures smooth operation, while the design supports both grease and oil lubrication, reaching speeds of 40 r/min and 80 r/min respectively. The bearing maintains performance in temperatures from -30°C to 110°C.
With high axial stiffness and moment stiffness, it’s ideal for heavy-duty applications like wind turbines or large industrial machinery. The preload and unloading force features provide stability under demanding conditions.
Weighing 253kg, this bearing is built for durability and precision. It complies with RoHS and REACH standards, making it a reliable choice for engineers and maintenance teams.
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Performance Features of NRT 850 A Bearing
NRT 850 A Bearing is built for combined load applications, with a basic dynamic load rating of 473 kN in radial direction and 415 kN in axial direction.
Its chrome steel rings and rollers ensure durability and reliable performance under heavy loads.
The brass cage maintains roller alignment, reducing friction and extending service life.
With attainable speeds of 40 r/min for grease lubrication and 80 r/min for oil-air lubrication, it offers flexibility in various operating conditions.
How Is NRT 850 A Bearing Engineered for Reliability?
NRT 850 A Bearing features precise tolerances, with bore diameter tolerance of -0.05mm to 0 and outer diameter tolerance of -0.055mm to 0.
The axial stiffness ranges from 22,400,000 kN/µm to 77,000,000 kN/µm, ensuring stability in demanding applications.
Its temperature range of -30° to 110 °C allows operation in diverse environments.
The bearing’s brass cage and chrome steel construction contribute to its long-lasting performance.
Built for Reliability: NRT 850 A Bearing
NRT 850 A Bearing handles combined loads with ease, thanks to its robust cylindrical roller design.
The basic static load rating of 2120 kN in radial direction ensures it can withstand heavy-duty applications.
Its axial preload of 47 kN and unloading force of 103 kN provide consistent performance.
The bearing’s moment stiffness of 7011 kN·m/mrad adds to its reliability in complex load scenarios.
Industrial Uses of NRT 850 A Bearing
NRT 850 A Bearing is commonly used in heavy industrial machinery, such as large gearboxes and rolling mills, where its combined load capacity handles both axial and radial forces effectively. The chrome steel construction ensures durability in demanding environments.
In wind turbine applications, NRT 850 A Bearing supports the main shaft, providing reliable performance under varying loads and speeds. Its brass cage helps reduce friction, enhancing efficiency in long-term operations.
For precision machine tools, NRT 850 A Bearing’s high stiffness and load ratings make it suitable for spindle assemblies. The grease or oil-air lubrication options allow flexibility depending on operational requirements.
Automotive vs Aerospace: Applications of NRT 850 A Bearing
In automotive testing rigs, NRT 850 A Bearing is valued for its ability to withstand high dynamic loads during endurance tests. Its metric sizing ensures compatibility with European engineering standards.
Aerospace applications benefit from NRT 850 A Bearing’s precision in landing gear systems, where consistent performance is critical. The temperature range suits both ground and flight conditions.
Built for Heavy-Duty Use: NRT 850 A Bearing
NRT 850 A Bearing excels in mining equipment, where its robust design handles extreme loads and harsh conditions. The large bore diameter accommodates heavy shafts commonly found in this industry.
In marine propulsion systems, NRT 850 A Bearing’s corrosion-resistant materials and lubrication options ensure reliable performance in saltwater environments. The axial stiffness helps maintain alignment under thrust loads.
What Makes NRT 850 A Bearing a Preferred Choice?
NRT 850 A Bearing is often selected for paper manufacturing machinery due to its ability to manage high radial loads while maintaining precision. The brass cage contributes to smoother operation at lower speeds.
In steel production lines, NRT 850 A Bearing’s high static load rating makes it ideal for roller tables and conveyors. The wide temperature range allows operation in both hot and cold processing areas.
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