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

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

The NN 3011 KTN/UP 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 and PA66 cage ensure reliable performance, while the tapered bore allows for precise mounting. 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 high-precision applications like machine tools or industrial gearboxes where stability is key.

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/UP
  • 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 -0.007mm to 0
  • Width 26 mm
  • Width Tolerance -0.10mm 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/UP dimension drawing
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Features

Performance Features of NN 3011 KTN/UP Bearing

NN 3011 KTN/UP 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 design enhances stability and load distribution, ensuring smooth operation.
With a maximum speed of 12,000 rpm, it delivers both durability and efficiency.

How Is NN 3011 KTN/UP Bearing Engineered for Reliability?

NN 3011 KTN/UP Bearing features a taper bore design (1:12), ensuring secure fitting and alignment.
The PA66 cage keeps the rollers centred, reducing friction and wear during operation.
It operates efficiently in temperatures ranging from -30° to 110°C, adapting to various working conditions.
Grease or oil lubrication options provide flexibility for different maintenance needs.

Designed for Durability: NN 3011 KTN/UP Bearing

NN 3011 KTN/UP Bearing’s open design allows for easy lubrication, extending its service life.
The precise chamfer dimensions (1.1 mm outer ring, 0.6 mm inner ring) facilitate smooth installation.
Its static radial load capacity of 21712 lbf ensures reliability under heavy loads.
The cylindrical roller type enhances performance in high-speed applications.

Steel vs Ceramic Bearings: Strengths of NN 3011 KTN/UP Bearing

NN 3011 KTN/UP Bearing uses chrome steel for both rings and rollers, balancing strength and cost-effectiveness.
The material choice ensures excellent wear resistance and long-term performance.
Its permissible axial displacement of 1.5 mm accommodates slight misalignments without compromising function.
The metric system design makes it interchangeable with major brands like SKF.

Application

Industrial Uses of NN 3011 KTN/UP Bearing
NN 3011 KTN/UP Bearing is commonly used in machine tools, 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.

Where Is NN 3011 KTN/UP Bearing Used?
You’ll find NN 3011 KTN/UP Bearing in automotive transmissions, where its precision and durability keep gears running smoothly. Its chrome steel construction also makes it suitable for heavy-duty industrial gearboxes.

Built for Heavy-Duty Use: NN 3011 KTN/UP Bearing
NN 3011 KTN/UP Bearing excels in conveyor systems, thanks to its high dynamic load capacity. The open design allows for easy lubrication, extending its lifespan in demanding environments.

Automotive vs Aerospace: Applications of NN 3011 KTN/UP Bearing
In automotive applications, NN 3011 KTN/UP Bearing supports gearboxes and drivetrains, while in aerospace, it’s used in auxiliary power units. Its high-speed capability makes it versatile across industries.

Perfect Fit for Automation: NN 3011 KTN/UP Bearing
NN 3011 KTN/UP Bearing is ideal for robotic arms, where its precision ensures accurate movement. The PA66 cage reduces friction, making it a reliable choice for continuous operation.

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