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

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

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

Its open design allows easy lubrication with grease or oil, while the PA66 cage ensures stable performance. The bearing operates well in temperatures 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 spindles where high radial and axial loads are present.

Weighing just 0.6kg, it’s lightweight yet robust for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3011 KTN/SP
  • 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/SP dimension drawing
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Features

Performance Features of NN 3011 KTN/SP Bearing

NN 3011 KTN/SP Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 15592 lbf, making it suitable for demanding industrial applications.

The double-row cylindrical design ensures stability and precision, even at high speeds up to 12000 rpm.
PA66 cage keeps the rollers centred, reducing friction and enhancing durability.

NN 3011 KTN/SP Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open seal type allows for easy lubrication with grease or oil, ensuring smooth performance.

The tapered bore design simplifies installation and improves alignment accuracy.
With a static radial load capacity of 21712 lbf, it delivers reliable performance under heavy loads.

Application

Industrial Uses of NN 3011 KTN/SP Bearing
NN 3011 KTN/SP 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 12,000 rpm makes it suitable for precision grinding applications.

Where Is NN 3011 KTN/SP Bearing Used?
In automotive manufacturing, NN 3011 KTN/SP Bearing supports gearbox shafts, ensuring smooth power transmission. Its tapered bore design allows for easy installation and alignment in tight spaces.

Built for Heavy-Duty Use: NN 3011 KTN/SP Bearing
This bearing excels in industrial fans and pumps, where its chrome steel construction withstands continuous operation. The open seal type simplifies lubrication, reducing maintenance downtime.

Automotive vs Aerospace: Applications of NN 3011 KTN/SP Bearing
In automotive systems, NN 3011 KTN/SP Bearing handles high radial loads in wheel hubs. For aerospace, its precision and speed rating make it ideal for turbine shaft support.

Perfect Fit for Automation: NN 3011 KTN/SP Bearing
NN 3011 KTN/SP Bearing is a reliable choice for robotic arms, offering stability during repetitive movements. The PA66 cage ensures quiet operation, which is crucial in automated environments.

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