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Double Row Super-Precision Cylindrical Roller Bearings NN 3011 KTN/SPVR521

Double Row Super-Precision Cylindrical Roller Bearings NN 3011 KTN/SPVR521

The NN 3011 KTN/SPVR521 is a double-row cylindrical roller bearing with a 55mm bore and 90mm outer diameter, crafted from high-quality chrome steel. It handles combined loads up to 15592 lbf and spins smoothly at speeds up to 12000 RPM.

Its open design allows for easy lubrication with grease or oil, while the PA66 cage ensures stable performance. The bearing operates well in temperatures ranging from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a reliable choice for replacements. Ideal for precision applications like machine tools or industrial gearboxes where high radial and axial loads are present.

Weighing just 0.6kg, it’s a robust yet lightweight solution for demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3011 KTN/SPVR521
  • Size 55 mm x 90 mm x 26 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 55 mm
  • Bore Dia Tolerance 0 to +0.015mm
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.010mm to 0
  • Width 26 mm
  • Width Tolerance -0.15mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 1.1 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 0.6 mm
  • Permissible Axial Displacement(max.) 1.5 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 15592 lbf
  • Static Radial Load 21712 lbf
  • Max Speed 12000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.6 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3011 KTN/SPVR521 dimension drawing
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Features

Performance Features of NN 3011 KTN/SPVR521 Bearing

NN 3011 KTN/SPVR521 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 15592 lbf, ensuring reliable operation in demanding conditions.

The double-row design of NN 3011 KTN/SPVR521 Bearing enhances stability and load distribution.
With a maximum speed of 12,000 rpm, it delivers both durability and efficiency.

NN 3011 KTN/SPVR521 Bearing operates smoothly in temperatures ranging from -30° to 110 °C.
Its PA66 cage keeps the rollers centred, reducing wear and extending service life.

The open seal design of NN 3011 KTN/SPVR521 Bearing allows for easy lubrication with grease or oil.
This feature ensures consistent performance while minimising maintenance needs.

Application

Industrial Uses of NN 3011 KTN/SPVR521 Bearing
NN 3011 KTN/SPVR521 Bearing is commonly used in machine tools, where its double-row design handles combined radial and axial loads efficiently. The high-speed capability of up to 12000 rpm makes it suitable for precision grinding and milling operations.

Where Is NN 3011 KTN/SPVR521 Bearing Used?
In automotive applications, NN 3011 KTN/SPVR521 Bearing supports gearboxes and drivetrains, ensuring smooth power transmission. Its tapered bore design simplifies installation and alignment in tight spaces.

Built for Heavy-Duty Use: NN 3011 KTN/SPVR521 Bearing
This bearing excels in industrial fans and pumps, where its chrome steel construction withstands continuous operation. The open seal type allows for easy lubrication, extending service life in demanding environments.

Automotive vs Aerospace: Applications of NN 3011 KTN/SPVR521 Bearing
In automotive systems, NN 3011 KTN/SPVR521 Bearing is ideal for high-speed transmissions, while in aerospace, it ensures reliability in auxiliary power units. Its precision engineering meets the rigorous demands of both sectors.

Key Fields for NN 3011 KTN/SPVR521 Bearing
NN 3011 KTN/SPVR521 Bearing is a go-to choice for robotics, particularly in articulated arms requiring precise movement. The PA66 cage reduces friction, enhancing performance in automated systems.

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