Super-Precision Axial-Radial Cylindrical Roller Bearings NRT 150 B

Super-Precision Axial-Radial Cylindrical Roller Bearings NRT 150 B

The NRT 150 B is a super-precision cylindrical roller bearing with a 150mm bore and 240mm outer diameter, designed to handle both radial and axial loads. Made from durable chrome steel, it offers a robust solution for demanding applications.

It can manage radial loads up to 67.1 kN and axial loads up to 75 kN, with speeds reaching 210 r/min for grease lubrication and 420 r/min for oil-air lubrication. The brass cage ensures smooth operation and longevity.

Its design includes precise tolerances and chamfered edges for easy installation. The bearing works well in temperatures from -30°C to 110°C and is compliant with RoHS and REACH standards.

Ideal for high-precision machinery like machine tools or industrial gearboxes, where combined loads and smooth performance are crucial. Weighing 5.6 kg, it balances strength and precision effectively.

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Product Parameters

  • Part Number NRT 150 B
  • Size 150 mm x 240 mm x 40 mm
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.013mm to 0
  • Outer Dia 240 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 40 mm
  • Height Tolerance -0.175mm to 0
  • Shoulder Diameter Inner Ring - Large Shoulder 214 mm
  • Outer Ring (Housing Washer) Width 12 mm
  • Distance 26 mm
  • Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter 165 mm
  • Outer Ring (Housing Washer) Hole Pitch Circle Diameter 225 mm
  • Inner Ring (Shaft/Locating Washer) Through Hole 7 mm
  • Inner Ring (Shaft Washer) Sinkhole 11 mm
  • Outer Ring (Housing Washer) Through Hole 7 mm
  • Inner Ring (Shaft Washer) Sinkhole Depth 6.2 mm
  • Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) 0.6 mm
  • Chamfer Dimension r2 (min.) 0.3 mm
  • Basic Dynamic Load Rating - Radial Direction 67.1 kN
  • Basic Static Load Rating - Radial Direction 160 kN
  • Basic Dynamic Load Rating - Axial Direction 75 kN
  • Attainable Speed For Grease Lubrication 210 r/min
  • Attainable Speed For Oil-Air Lubrication 420 r/min
  • Axial Preload 2.3 kN
  • Axial Unloading Force 4.9 kN
  • Frictional Moment 12 N·m
  • Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) 9200000 kN/µm
  • Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) 5500000 kN/µm
  • Moment Stiffness 36 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 5.6 kg

Features

Performance Features of NRT 150 B Bearing

NRT 150 B Bearing combines radial and axial load handling, making it versatile for complex applications.
Its chrome steel construction ensures durability and resistance to wear under heavy loads.
With a basic dynamic load rating of 67.1 kN radially and 75 kN axially, it delivers reliable performance.

The brass cage maintains roller alignment, reducing friction and extending service life.
NRT 150 B Bearing supports speeds up to 420 r/min with oil-air lubrication, balancing speed and stability.
Its axial stiffness reaches 9200000 kN/µm, providing precision in demanding conditions.

Designed for temperatures from -30° to 110°C, NRT 150 B Bearing performs well in varied environments.
The grease or oil lubrication options offer flexibility for different operational needs.
At 5.6 kg, it balances strength and manageable weight for installation.

Application

Industrial Uses of NRT 150 B Bearing
NRT 150 B Bearing is commonly used in heavy machinery like industrial presses and large gearboxes, where its combined load capacity handles both radial and axial forces effectively. The chrome steel construction ensures durability in demanding environments.

Where Is NRT 150 B Bearing Used?
You’ll often find NRT 150 B Bearing in wind turbine systems, where its high dynamic load rating supports smooth rotation under varying wind conditions. Its brass cage also helps reduce friction, extending service life.

Built for Heavy-Duty Use: NRT 150 B Bearing
NRT 150 B Bearing excels in construction equipment like cranes, where its axial stiffness provides stability during heavy lifting operations. The grease lubrication option makes it suitable for outdoor applications.

Automotive vs Aerospace: Applications of NRT 150 B Bearing
In automotive testing rigs, NRT 150 B Bearing ensures precise load distribution during performance evaluations. For aerospace, its temperature range makes it reliable in engine component testing.

Perfect Fit for Automation: NRT 150 B Bearing
NRT 150 B Bearing is ideal for robotic assembly lines, where its low frictional moment enhances energy efficiency. The oil-air lubrication option allows for high-speed operation in automated systems.

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