+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBTB

Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBTB

The 71920 ACD/P4AQBTB 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 33975 lbf and operates smoothly at speeds up to 15000 RPM.

Its 25° contact angle and matched set of four bearings provide excellent stability and accuracy. The phenolic cage ensures quiet operation and durability, even under light preload conditions.

This bearing is lubricated for easy maintenance and performs reliably in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or high-speed robotics.

Weighing 3.2kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for convenient replacements.

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

Product Parameters

  • Part Number 71920 ACD/P4AQBTB
  • 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 80 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 4 bearings <>>> QBT
  • Number Of Bearings In Matched Set 4
  • 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 33975 lbf
  • Static Radial Load 56250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 3.2 kg
Super Precision Angular Contact Ball Bearings 71920 ACD/P4AQBTB dimension drawing
Download DWG Download PDF

Features

Performance Features of 71920 ACD/P4AQBTB Bearing

71920 ACD/P4AQBTB 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 33975 lbf and 56250 lbf respectively.

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

With a precision tolerance class of P4A, it delivers reliable performance in demanding conditions.

Application

Key Fields for 71920 ACD/P4AQBTB Bearing
71920 ACD/P4AQBTB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set of four bearings enhances stability in demanding machining operations.

In aerospace applications, 71920 ACD/P4AQBTB Bearing supports critical components like turbine shafts, 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/P4AQBTB Bearing provides smooth motion in articulated arms, where precision and reliability are key. Its chrome steel construction ensures durability even in continuous operation cycles.

Medical imaging devices benefit from 71920 ACD/P4AQBTB Bearing’s low vibration and high rigidity, ensuring clear and stable scans. The open design allows for easy lubrication, maintaining performance in sterile environments.

In automotive testing equipment, 71920 ACD/P4AQBTB Bearing handles both radial and axial loads, making it ideal for dynamometers. The P4A tolerance class guarantees consistent results in rigorous testing conditions.

Q&A

SEND INQUIRY