+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71920 ACD/P4ATBTB

Super Precision Angular Contact Ball Bearings 71920 ACD/P4ATBTB

The 71920 ACD/P4ATBTB is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 27900 lbf and operates smoothly at speeds up to 15000 RPM.

Its 25° contact angle and matched set of three bearings (arranged TBT) provide excellent stability for angular loads. The phenolic cage ensures quiet, long-lasting performance, even in temperatures from -30°C to 110°C.

This bearing is preloaded for light applications, making it ideal for high-precision machinery like spindles or CNC equipment. Its open design allows for easy lubrication and maintenance.

Weighing 2.4kg, it’s a robust choice for demanding industrial applications. Compliant with P4A tolerance standards, it offers reliable performance for precision engineering needs.

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

Product Parameters

  • Part Number 71920 ACD/P4ATBTB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 60 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 25°
  • 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 27900 lbf
  • Static Radial Load 42750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 2.4 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/P4ATBTB dimension drawing
Download DWG Download PDF

Features

Performance Features of 71920 ACD/P4ATBTB Bearing

71920 ACD/P4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls provide strong resistance to both dynamic and static radial loads, reaching up to 27900 lbf and 42750 lbf respectively.

The phenolic cage ensures smooth operation at high speeds, with a maximum speed of 15,000 rpm.

With a matched arrangement of three bearings, it offers enhanced stability and precision in demanding conditions.

Application

Practical Applications of 71920 ACD/P4ATBTB Bearing
71920 ACD/P4ATBTB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched arrangement of three bearings provides stability for heavy cutting operations.

In aerospace applications, 71920 ACD/P4ATBTB Bearing supports critical components like helicopter rotor systems, thanks to its light preload and high-speed capability. The phenolic cage reduces friction, making it suitable for long-duration flights.

For robotics, 71920 ACD/P4ATBTB Bearing enables smooth movement in articulated arms, where precise angular contact is essential. Its chrome steel construction ensures durability even in repetitive motion scenarios.

Medical imaging devices benefit from 71920 ACD/P4ATBTB Bearing’s low vibration and high rigidity, crucial for maintaining image clarity. The P4A tolerance class guarantees consistent performance in sensitive environments.

In automotive testing equipment, 71920 ACD/P4ATBTB Bearing handles dynamic radial loads during endurance tests. Its lubricated design minimises maintenance needs, ideal for continuous operation.

Q&A

SEND INQUIRY