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Double Row Super-Precision Cylindrical Roller Bearings NN 3028 K/SPC2W33

Double Row Super-Precision Cylindrical Roller Bearings NN 3028 K/SPC2W33

The NN 3028 K/SPC2W33 is a double-row cylindrical roller bearing with a 140mm bore and 210mm outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 66825 lbf and reaches speeds of 5000 RPM.

Its tapered bore design ensures a secure fit, while the open seal allows for easy lubrication with grease or oil. The bearing operates smoothly in temperatures from -30°C to 110°C.

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

Weighing 6.15kg, it’s built to last with a robust double-row construction. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number NN 3028 K/SPC2W33
  • Size 140 mm x 210 mm x 53 mm
  • Brand TFL
  • Interchangeable brand SKF
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • Bore Type Taper 1:12
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Bore Dia 140 mm
  • Bore Dia Tolerance 0 to +0.025mm
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 53 mm
  • Width Tolerance -0.25mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 2 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
  • Permissible Axial Displacement(max.) 2.5 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 66825 lbf
  • Static Radial Load 117000 lbf
  • Max Speed 5000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 6.15 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 8.75 mm
  • Diameter Lubrication Hole (outer Ring) (K) 4.5 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3028 K/SPC2W33 dimension drawing
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Features

Performance Features of NN 3028 K/SPC2W33 Bearing

NN 3028 K/SPC2W33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 66,825 lbf, making it suitable for heavy-duty applications.

The double-row design enhances stability and load distribution, ensuring smooth operation.
With a maximum speed of 5,000 rpm, it balances performance and durability in demanding conditions.

NN 3028 K/SPC2W33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for flexible lubrication options, either grease or oil, to suit various needs.

The tapered bore design simplifies installation and ensures secure fitting.
Precision engineering reduces wear, extending the bearing’s service life in industrial applications.

Application

Industrial Uses of NN 3028 K/SPC2W33 Bearing
NN 3028 K/SPC2W33 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 tapered bore ensures a secure fit, reducing slippage during high-speed operations.

What Makes NN 3028 K/SPC2W33 Bearing a Preferred Choice?
In precision applications such as machine tool spindles, NN 3028 K/SPC2W33 Bearing offers excellent stability due to its chrome steel construction. The open seal design allows for easy lubrication, extending service life in demanding environments.

Built for Heavy-Duty Use: NN 3028 K/SPC2W33 Bearing
NN 3028 K/SPC2W33 Bearing excels in rolling mills and paper processing equipment, where its high dynamic load capacity ensures reliable performance. The grease or oil lubrication options provide flexibility for different operating conditions.

Automotive vs Aerospace: Applications of NN 3028 K/SPC2W33 Bearing
In automotive transmissions, NN 3028 K/SPC2W33 Bearing supports smooth power transfer, while in aerospace, its precision tolerances meet stringent requirements for reliability. The combined load capability makes it versatile across industries.

Perfect Fit for Automation: NN 3028 K/SPC2W33 Bearing
NN 3028 K/SPC2W33 Bearing is ideal for robotic arms and CNC machines, where its high-speed capability and low friction enhance accuracy. The metric dimensions ensure compatibility with European and Asian automation systems.

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