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Super Precision Angular Contact Ball Bearings 7018 CD/P4ATBTB

Super Precision Angular Contact Ball Bearings 7018 CD/P4ATBTB

The 7018 CD/P4ATBTB is a super precision angular contact ball bearing with a 90mm bore and 140mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 38700 lbf and operates smoothly at speeds up to 15000 RPM.

With a 15° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures quiet operation and long service life, even under light preload conditions.

This set includes three matched bearings arranged in a TBT configuration for balanced load distribution. Ideal for precision machinery like spindles or CNC equipment where accuracy is key.

Weighing 3.47kg, it’s designed for temperatures from -30°C to 110°C. Compliant with P4A tolerance class for reliable performance in demanding environments.

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Product Parameters

  • Part Number 7018 CD/P4ATBTB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 72 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 20
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 38700 lbf
  • Static Radial Load 51300 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 3.47 kg
Super Precision Angular Contact Ball Bearings 7018 CD/P4ATBTB dimension drawing
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Features

How Does 7018 CD/P4ATBTB Bearing Achieve Super Precision?

7018 CD/P4ATBTB Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its matched arrangement of three bearings ensures stability and balanced load distribution.

The chrome steel rings and balls enhance durability, while the phenolic cage reduces friction.
With a dynamic radial load capacity of 38,700 lbf, it handles demanding conditions effortlessly.

7018 CD/P4ATBTB Bearing operates smoothly at speeds up to 15,000 rpm, maintaining precision.
Its P4A tolerance class guarantees consistent performance in critical applications.

The open design allows for easy lubrication, extending the bearing’s service life.
Ideal for high-speed machinery, it performs reliably between -30°C and 110°C.

Application

Industrial Uses of 7018 CD/P4ATBTB Bearing
7018 CD/P4ATBTB Bearing is commonly used in high-precision machine tools, where its angular contact design handles both radial and axial loads efficiently. The matched set of three bearings ensures stability in demanding applications like CNC spindles.

In automotive systems, 7018 CD/P4ATBTB Bearing supports high-speed components such as turbochargers and electric motor shafts. Its light preload and phenolic cage contribute to smooth operation and reduced friction.

For medical imaging devices, 7018 CD/P4ATBTB Bearing’s P4A tolerance class provides the accuracy needed for consistent performance. The chrome steel construction also ensures durability in sterile environments.

Automation and robotics benefit from 7018 CD/P4ATBTB Bearing’s ability to handle rapid directional changes. Its open design allows for easy lubrication, extending service life in robotic arms and precision actuators.

In consumer electronics, 7018 CD/P4ATBTB Bearing is found in high-end printers and scanners, where quiet operation is essential. The metric sizing makes it compatible with a variety of compact devices.

Q&A

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