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Super-Precision Axial-Radial Cylindrical Roller Bearings NRT 460 A

Super-Precision Axial-Radial Cylindrical Roller Bearings NRT 460 A

The NRT 460 A is a super-precision cylindrical roller bearing with a 460mm bore and 600mm outer diameter, designed to handle both radial and axial loads. Made from durable chrome steel, it supports dynamic loads up to 201 kN radially and 180 kN axially.

Its brass cage ensures smooth operation, while the bearing can run at speeds up to 160 r/min with oil-air lubrication. The design includes precise tolerances for reliable performance in demanding conditions.

This bearing is ideal for heavy machinery like turbines or large gearboxes where combined loads are common. It operates in temperatures from -30°C to 110°C and complies with RoHS and REACH standards.

Weighing 45kg, it’s built for stability and long service life. The preload and stiffness features make it suitable for high-precision applications requiring minimal deflection.

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Product Parameters

  • Part Number NRT 460 A
  • Size 460 mm x 600 mm x 70 mm
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Bore Dia 460 mm
  • Bore Dia Tolerance -0.027mm to 0
  • Outer Dia 600 mm
  • Outer Dia Tolerance -0.028mm to 0
  • Width 70 mm
  • Height Tolerance -0.45mm to 0
  • Shoulder Diameter Inner Ring - Large Shoulder 560 mm
  • Outer Ring (Housing Washer) Width 22 mm
  • Distance 46 mm
  • Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter 482 mm
  • Outer Ring (Housing Washer) Hole Pitch Circle Diameter 580 mm
  • Inner Ring (Shaft/Locating Washer) Through Hole 9.3 mm
  • Inner Ring (Shaft Washer) Sinkhole 15 mm
  • Outer Ring (Housing Washer) Through Hole 9.3 mm
  • Inner Ring (Shaft Washer) Sinkhole Depth 8.2 mm
  • Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) 1 mm
  • Chamfer Dimension r2 (min.) 1 mm
  • Basic Dynamic Load Rating - Radial Direction 201 kN
  • Basic Static Load Rating - Radial Direction 765 kN
  • Basic Dynamic Load Rating - Axial Direction 180 kN
  • Attainable Speed For Grease Lubrication 80 r/min
  • Attainable Speed For Oil-Air Lubrication 160 r/min
  • Axial Preload 16 kN
  • Axial Unloading Force 34 kN
  • Frictional Moment 70 N·m
  • Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) 38500000 kN/µm
  • Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) 12100000 kN/µm
  • Moment Stiffness 1036 kN·m/mrad
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Brass
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 45 kg

Features

How Is NRT 460 A Bearing Engineered for Reliability?

NRT 460 A Bearing is crafted from chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its basic dynamic load rating reaches 201 kN radially and 180 kN axially, making it suitable for demanding applications.

The brass cage maintains roller alignment, reducing friction and extending operational life.
With grease or oil lubrication options, NRT 460 A Bearing performs reliably in temperatures from -30° to 110°C.

Designed for precision, it offers axial stiffness up to 38,500,000 kN/µm, ensuring stability in high-load scenarios.
The attainable speed of 160 r/min with oil-air lubrication balances performance and efficiency.

Application

Industrial Uses of NRT 460 A Bearing
NRT 460 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 efficiently. The chrome steel construction ensures durability in demanding environments.

In wind turbine applications, NRT 460 A Bearing supports the main shaft, providing reliable performance under varying loads and speeds. Its brass cage helps reduce friction, extending service life in these critical systems.

For machine tools, NRT 460 A Bearing’s high stiffness and precision make it suitable for spindle units, ensuring accurate machining operations. The grease or oil lubrication options allow flexibility based on operational requirements.

Where Is NRT 460 A Bearing Used?
NRT 460 A Bearing finds its place in paper manufacturing equipment, where its ability to handle high radial and axial loads keeps production lines running smoothly. The large bore size accommodates heavy shafts commonly found in this industry.

In steel processing plants, NRT 460 A Bearing’s robust design withstands the harsh conditions of continuous casting machines. The temperature range ensures stable performance even in high-heat environments.

Built for Heavy-Duty Use: NRT 460 A Bearing
NRT 460 A Bearing excels in mining equipment, such as crushers and conveyors, where its high load ratings and durability are essential. The brass cage material provides excellent wear resistance in abrasive conditions.

For marine applications, NRT 460 A Bearing’s corrosion-resistant materials and grease lubrication make it ideal for propeller shafts. Its large size and load capacity meet the demands of heavy ship machinery.

Automotive vs Aerospace: Applications of NRT 460 A Bearing
In automotive testing rigs, NRT 460 A Bearing supports large rotating components, ensuring precise measurements during development. Its stiffness and load capacity handle the rigorous testing conditions.

For aerospace ground equipment, NRT 460 A Bearing’s precision and reliability are crucial in maintenance platforms and assembly jigs. The combined load capability accommodates various operational stresses.

Q&A

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