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Double Row Super-Precision Cylindrical Roller Bearings NNU 4922 B/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NNU 4922 B/SPW33

The NNU 4922 B/SPW33 is a double-row cylindrical roller bearing with a 110mm bore and 150mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 29700 lbf and runs smoothly at speeds up to 6000 RPM.

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

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for industrial machinery or precision equipment where high radial and axial loads are present.

Weighing 2.05kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use in various applications.

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Product Parameters

  • Part Number NNU 4922 B/SPW33
  • Size 110 mm x 150 mm x 40 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 110 mm
  • Bore Dia Tolerance -0.010mm to 0
  • Outer Dia 150 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 40 mm
  • Width Tolerance -0.20mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 1.1 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
  • Permissible Axial Displacement(max.) 1.1 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 29700 lbf
  • Static Radial Load 60750 lbf
  • Max Speed 6000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 2.05 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 5.5 mm
  • Diameter Lubrication Hole (outer Ring) (K) 3 mm
  • Shoulder Dia Outer Ring 135.8 mm
  • Raceway Diameter Inner Ring 123 mm
Double Row Super-Precision Cylindrical Roller Bearings NNU 4922 B/SPW33 dimension drawing
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Features

Performance Features of NNU 4922 B/SPW33 Bearing

NNU 4922 B/SPW33 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 29,700 lbf, ensuring reliable performance in demanding applications.

The double-row cylindrical design enhances stability and load distribution, reducing wear over time.
With a maximum speed of 6,000 rpm, it balances durability and efficiency in high-speed operations.

NNU 4922 B/SPW33 Bearing works well in temperatures ranging from -30° to 110°C, adapting to various environments.
Its open design allows for easy lubrication with grease or oil, simplifying maintenance.

The precise tolerances and chamfered edges ensure smooth installation and alignment.
This makes NNU 4922 B/SPW33 Bearing a practical choice for precision machinery.

Application

Industrial Uses of NNU 4922 B/SPW33 Bearing
NNU 4922 B/SPW33 Bearing is commonly used in heavy machinery like industrial gearboxes and large pumps, where its double-row design handles both radial and axial loads efficiently. The open seal type allows for easy lubrication, ensuring long service life in demanding conditions.

Where Is NNU 4922 B/SPW33 Bearing Used?
In automotive manufacturing, NNU 4922 B/SPW33 Bearing supports high-precision components such as transmission systems and wheel hubs. Its chrome steel construction provides durability under heavy loads and high speeds.

Perfect Fit for Automation: NNU 4922 B/SPW33 Bearing
NNU 4922 B/SPW33 Bearing is ideal for robotic arms and CNC machines, where precision and reliability are key. The grease or oil lubrication options make it adaptable to various operating environments.

Medical vs Industrial: Where NNU 4922 B/SPW33 Bearing Excels
While NNU 4922 B/SPW33 Bearing is robust enough for industrial presses, its precision also suits medical imaging devices. The consistent performance ensures minimal downtime in critical applications.

Key Fields for NNU 4922 B/SPW33 Bearing
NNU 4922 B/SPW33 Bearing is a go-to choice for wind turbine generators, thanks to its ability to handle combined loads. The high dynamic radial load capacity makes it reliable in renewable energy applications.

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