+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPVR521

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPVR521

The NN 3018 KTN9/SPVR521 is a double-row cylindrical roller bearing with a 90mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles combined loads up to 31050 lbf and operates smoothly at speeds up to 7000 RPM.

Its open design and tapered bore (1:12) ensure easy installation and maintenance, while the PA66 cage keeps rollers centred for consistent performance. The bearing works reliably in temperatures from -30°C to 110°C.

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

Weighing 1.95kg, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number NN 3018 KTN9/SPVR521
  • Size 90 mm x 140 mm x 37 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 90 mm
  • Bore Dia Tolerance 0 to +0.020mm
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 37 mm
  • Width Tolerance -0.20mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 1.5 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1 mm
  • Permissible Axial Displacement(max.) 2 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 31050 lbf
  • Static Radial Load 48600 lbf
  • Max Speed 7000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 1.95 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPVR521 dimension drawing
Download DWG Download PDF

Features

Performance Features of NN 3018 KTN9/SPVR521 Bearing

NN 3018 KTN9/SPVR521 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 31050 lbf, ensuring robust performance in precision applications.

The double-row design enhances stability and load distribution, reducing wear during operation.
With a maximum speed of 7000 rpm, it maintains efficiency without compromising durability.

NN 3018 KTN9/SPVR521 Bearing operates smoothly in temperatures from -30° to 110°C, adapting to various environments.
The PA66 cage keeps rollers centred, ensuring consistent performance over time.

Its open design allows for easy lubrication with grease or oil, simplifying maintenance.
The tapered bore ensures secure fitting, enhancing reliability in high-precision machinery.

Application

Industrial Uses of NN 3018 KTN9/SPVR521 Bearing
NN 3018 KTN9/SPVR521 Bearing is commonly used in machine tools, where its double-row design handles high radial and axial loads with precision. The tapered bore ensures a secure fit, reducing slippage during operation.

In automotive applications, NN 3018 KTN9/SPVR521 Bearing supports gearboxes and drivetrains, offering stability under combined loads. Its chrome steel construction provides durability in demanding conditions.

For automation systems, NN 3018 KTN9/SPVR521 Bearing is ideal for robotic arms, where smooth rotation and high-speed performance are essential. The open seal design allows for easy lubrication maintenance.

What Makes NN 3018 KTN9/SPVR521 Bearing a Preferred Choice?
NN 3018 KTN9/SPVR521 Bearing excels in medical imaging devices, where its precision reduces vibration and noise. The PA66 cage material ensures reliable performance in sterile environments.

Built for Heavy-Duty Use: NN 3018 KTN9/SPVR521 Bearing
NN 3018 KTN9/SPVR521 Bearing is suited for conveyor systems, handling heavy loads with ease. Its grease or oil lubrication options adapt to various industrial conditions.

Automotive vs Aerospace: Applications of NN 3018 KTN9/SPVR521 Bearing
In automotive systems, NN 3018 KTN9/SPVR521 Bearing supports high-torque components like differentials. For aerospace, its lightweight design and high-speed capability make it suitable for auxiliary systems.

Q&A

SEND INQUIRY