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Super Precision Angular Contact Ball Bearings 71813 CD/P4DBB

Super Precision Angular Contact Ball Bearings 71813 CD/P4DBB

The 71813 CD/P4DBB is a super precision angular contact ball bearing with a 65mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 4972 lbf and operates smoothly at high speeds up to 36,000 RPM.

Its 15° contact angle and matched pair design (DB arrangement) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and long service life.

Preloaded for light performance (Class B), this bearing is ideal for precision applications like machine tool spindles or high-speed motors. It works in temperatures from -30°C to 110°C.

Weighing 0.25kg, this set includes two bearings for balanced load distribution. Compliant with P4 tolerance standards, it’s interchangeable with SKF models for easy replacement.

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Product Parameters

  • Part Number 71813 CD/P4DBB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 65 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 29
  • Contact Angle 15°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • 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 4972 lbf
  • Static Radial Load 6750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 36000 rpm
  • Weight 0.25 kg
Super Precision Angular Contact Ball Bearings 71813 CD/P4DBB dimension drawing
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Features

Performance Features of 71813 CD/P4DBB Bearing

71813 CD/P4DBB 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 and noise.

The matched arrangement of two bearings provides stability, ideal for precision tasks.
With a dynamic radial load capacity of 4972 lbf, it handles demanding conditions efficiently.

71813 CD/P4DBB Bearing operates smoothly at speeds up to 36,000 rpm, maintaining performance.
Its P4 tolerance class ensures high precision, making it suitable for critical applications.

Application

Key Fields for 71813 CD/P4DBB Bearing
71813 CD/P4DBB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of two bearings provides stability, making it ideal for grinding and milling applications.

In robotics, 71813 CD/P4DBB Bearing supports articulated arms, offering smooth movement and precise positioning. Its light preload reduces friction, enhancing efficiency in automated systems.

For aerospace components, 71813 CD/P4DBB Bearing’s phenolic cage and chrome steel construction handle high speeds reliably. The P4 tolerance class ensures consistent performance in demanding flight conditions.

Medical imaging devices benefit from 71813 CD/P4DBB Bearing’s low vibration and high rigidity. The open design allows for easy lubrication, maintaining performance in critical diagnostic equipment.

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