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Super Precision Angular Contact Ball Bearings 7209 CD/P4ATBTA

Super Precision Angular Contact Ball Bearings 7209 CD/P4ATBTA

The 7209 CD/P4ATBTA is a super precision angular contact ball bearing with a 45mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 20768 lbf and operates smoothly at speeds up to 41000 RPM.

With a 15° contact angle and extra-light preload, it offers precise performance for demanding applications. The phenolic cage ensures quiet operation and long service life.

This bearing comes in a matched set of three, arranged in a TBT configuration for enhanced stability. Ideal for high-precision machinery like CNC spindles or medical equipment.

Weighing 1.23kg, it works in temperatures from -30°C to 110°C and is interchangeable with SKF bearings. Lubricated for easy maintenance and compliant with P4A tolerance standards.

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Product Parameters

  • Part Number 7209 CD/P4ATBTA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 57 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 14
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 20768 lbf
  • Static Radial Load 20925 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 1.23 kg
  • Price（$） 27.99
Super Precision Angular Contact Ball Bearings 7209 CD/P4ATBTA dimension drawing
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Features

Performance Features of 7209 CD/P4ATBTA Bearing

7209 CD/P4ATBTA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 20768 lbf, it handles high-speed applications up to 41,000 rpm.

The extra light preload (Class A) enhances precision, making it ideal for demanding industrial tasks.

Application

Industrial Uses of 7209 CD/P4ATBTA Bearing
7209 CD/P4ATBTA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set arrangement of three bearings provides excellent stability for heavy cutting operations.

In automotive applications, 7209 CD/P4ATBTA Bearing supports high-speed components like turbochargers and transmission systems. Its extra light preload reduces friction, enhancing fuel efficiency and performance.

For robotics, 7209 CD/P4ATBTA Bearing’s phenolic cage offers quiet operation, ideal for precision robotic arms. The P4A tolerance class ensures consistent movement in automated assembly lines.

Medical imaging devices benefit from 7209 CD/P4ATBTA Bearing’s chrome steel construction, which provides reliable performance in MRI machines. The lubricated design minimises maintenance needs in critical healthcare environments.

In aerospace, 7209 CD/P4ATBTA Bearing handles both radial and axial loads in aircraft control systems. Its temperature range makes it suitable for varying flight conditions.

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