+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71920 CD/P4ADBC

Super Precision Angular Contact Ball Bearings 71920 CD/P4ADBC

The 71920 CD/P4ADBC is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-grade chrome steel. It handles radial loads up to 21938 lbf and operates smoothly at speeds up to 16000 RPM.

Its 15° contact angle and matched pair arrangement (DB) provide excellent stability for angular loads, while the phenolic cage ensures quiet, efficient performance. The open design allows for easy lubrication and maintenance.

This bearing is ideal for high-precision applications like machine tool spindles or high-speed robotics, where accuracy and durability are key. It works well in temperatures from -30°C to 110°C.

Weighing 1.6kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings, making it a reliable choice for replacements or upgrades.

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

Product Parameters

  • Part Number 71920 CD/P4ADBC
  • 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 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 21938 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.6 kg
Super Precision Angular Contact Ball Bearings 71920 CD/P4ADBC dimension drawing
Download DWG Download PDF

Features

Why Choose 71920 CD/P4ADBC Bearing for Precision Tasks?

71920 CD/P4ADBC Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 21938 lbf, it performs reliably in high-speed applications.
The P4A tolerance class guarantees consistent accuracy, making it suitable for demanding tasks.

Designed for moderate preload, 71920 CD/P4ADBC Bearing maintains stability even at speeds up to 16,000 rpm.
Its matched arrangement of two bearings enhances performance in angular contact applications.

The open seal type allows for easy lubrication, extending the bearing’s service life.
Operating between -30°C to 110°C, it adapts well to various environmental conditions.

Application

Industrial Uses of 71920 CD/P4ADBC Bearing
71920 CD/P4ADBC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload and P4A tolerance class make it suitable for applications demanding tight control over radial and axial loads.

In automotive systems, 71920 CD/P4ADBC Bearing supports high-speed components like turbochargers and transmission shafts. Its chrome steel construction and phenolic cage provide durability and stability under demanding conditions.

For automation and robotics, 71920 CD/P4ADBC Bearing excels in robotic arms and CNC machines, where smooth motion and precision are key. The matched arrangement of two bearings enhances performance in bidirectional load scenarios.

Medical imaging devices benefit from 71920 CD/P4ADBC Bearing’s reliable operation and low noise levels. The open design allows for easy lubrication, ensuring long service life in critical applications.

In consumer electronics, 71920 CD/P4ADBC Bearing can be found in high-end printers and scanners, where its precision and speed capabilities improve overall device performance. The metric sizing ensures compatibility with a wide range of equipment.

Q&A

SEND INQUIRY