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Double Row Super-Precision Cylindrical Roller Bearings NNU 4932 B/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NNU 4932 B/SPW33

The NNU 4932 B/SPW33 is a double-row cylindrical roller bearing with a 160mm bore and 220mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 74250 lbf and runs smoothly at speeds up to 4000 RPM.

Its open design allows for easy lubrication with grease or oil, while the double-row construction provides extra stability. The bearing operates well in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a reliable replacement option. Ideal for heavy-duty machinery like gearboxes or industrial equipment where precision and durability are key.

Weighing 6.6kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NNU 4932 B/SPW33
  • Size 160 mm x 220 mm x 60 mm
  • Brand TFL
  • Interchangeable brand SKF
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • Bore Type Cylindrical
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Bore Dia 160 mm
  • Bore Dia Tolerance -0.013mm to 0
  • Outer Dia 220 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 60 mm
  • Width Tolerance -0.25mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 2 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 2 mm
  • Permissible Axial Displacement(max.) 2 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 74250 lbf
  • Static Radial Load 153000 lbf
  • Max Speed 4000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 6.6 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 5.5 mm
  • Diameter Lubrication Hole (outer Ring) (K) 3 mm
  • Shoulder Dia Outer Ring 200.9 mm
  • Raceway Diameter Inner Ring 178.5 mm
Double Row Super-Precision Cylindrical Roller Bearings NNU 4932 B/SPW33 dimension drawing
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Features

Performance Features of NNU 4932 B/SPW33 Bearing

NNU 4932 B/SPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 74,250 lbf, making it suitable for heavy-duty applications.

The double-row cylindrical design ensures stability and precision in high-speed operations.
With a maximum speed of 4,000 rpm, it delivers reliable performance under demanding conditions.

NNU 4932 B/SPW33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The precise tolerances and chamfer dimensions enhance installation and alignment.
This bearing is ideal for applications requiring both radial and axial load support.

Application

Industrial Uses of NNU 4932 B/SPW33 Bearing
NNU 4932 B/SPW33 Bearing is commonly used in heavy-duty industrial machinery, such as large lathes and milling machines, where its double-row design handles combined loads effectively. The open seal type allows for easy lubrication, ensuring long service life in demanding conditions.

What Makes NNU 4932 B/SPW33 Bearing a Preferred Choice?
In automotive manufacturing, NNU 4932 B/SPW33 Bearing supports high-precision components like gear shafts and drivetrains, thanks to its chrome steel construction. Its high dynamic radial load capacity makes it reliable for continuous operation.

Built for Heavy-Duty Use: NNU 4932 B/SPW33 Bearing
For automation systems, NNU 4932 B/SPW33 Bearing is ideal for robotic arms and CNC machines, where its precision and stability are key. The wide temperature range ensures performance in various operating environments.

Medical vs Industrial: Where NNU 4932 B/SPW33 Bearing Excels
In medical imaging equipment, NNU 4932 B/SPW33 Bearing provides smooth rotation for accurate diagnostics, while in industrial settings, it excels in conveyor systems. Its grease or oil lubrication options adapt to different needs.

Key Fields for NNU 4932 B/SPW33 Bearing
NNU 4932 B/SPW33 Bearing is often found in wind turbines, where its high static radial load capacity supports rotor shafts. The metric sizing ensures compatibility with global machinery standards.

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