+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71920 CB/P4A

Super Precision Angular Contact Ball Bearings 71920 CB/P4A

The 71920 CB/P4A 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 4860 lbf and operates smoothly at speeds up to 19,000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows for easy lubrication. The bearing is preload-ready for applications requiring minimal deflection.

With a P4 tolerance class (ABEC-7), it offers exceptional accuracy for demanding tasks. Suitable for use in spindle drives or high-precision machinery where reliability is key.

Weighing 0.85kg, it’s robust yet manageable for its size. Works well in temperatures from -30°C to 110°C, making it versatile for various industrial environments.

This model is interchangeable with SKF bearings, providing a dependable option for replacements or upgrades. Ideal for engineers seeking precision and durability.

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

Product Parameters

  • Part Number 71920 CB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 37
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4860 lbf
  • Static Radial Load 5040 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 19000 rpm
  • Weight 0.85 kg
  • Price（$） 123.138
Super Precision Angular Contact Ball Bearings 71920 CB/P4A dimension drawing
Download DWG Download PDF

Features

Why Choose 71920 CB/P4A Bearing for Precision Tasks?

71920 CB/P4A Bearing features a 15° contact angle, optimising load distribution for high-precision applications.
Its chrome steel construction ensures durability and consistent performance under dynamic radial loads up to 4860 lbf.

The phenolic cage minimises friction, allowing smooth operation at speeds up to 19,000 rpm.
With ABEC-7 tolerance class, it delivers exceptional accuracy for demanding machinery.

71920 CB/P4A Bearing operates reliably in temperatures from -30° to 110°C, suitable for varied industrial environments.
Its open design simplifies lubrication maintenance while maintaining peak performance.

Application

Common Applications of 71920 CB/P4A Bearing
71920 CB/P4A Bearing is widely used in machine tools, where its high precision and angular contact design ensure accurate spindle rotation. The open seal type allows for easy lubrication, extending service life in demanding conditions.
In automotive applications, 71920 CB/P4A Bearing supports gearbox systems, handling both radial and axial loads efficiently. Its phenolic cage material reduces friction, making it suitable for high-speed operations.
For robotics, 71920 CB/P4A Bearing provides smooth movement in articulated arms, thanks to its P4 tolerance class. The chrome steel construction ensures durability even with frequent directional changes.

Why Is 71920 CB/P4A Bearing Essential in Machinery?
71920 CB/P4A Bearing plays a key role in industrial pumps, where its ability to handle combined loads improves reliability. The 15° contact angle optimises performance under varying operational stresses.
In aerospace components, 71920 CB/P4A Bearing’s high-speed capability and precision are crucial for flight control systems. Its temperature range also ensures stability in extreme environments.

Built for Heavy-Duty Use: 71920 CB/P4A Bearing
71920 CB/P4A Bearing is ideal for printing presses, where consistent performance under heavy loads is required. The lubricated design minimises wear during continuous operation.
In construction equipment, 71920 CB/P4A Bearing withstands shock loads in excavator slewing rings. Its robust chrome steel rings provide long-term durability in harsh conditions.

Automotive vs Aerospace: Applications of 71920 CB/P4A Bearing
In automotive transmissions, 71920 CB/P4A Bearing ensures smooth gear shifting with its precise angular contact. The high dynamic load capacity suits performance vehicles.
For aerospace actuators, 71920 CB/P4A Bearing’s P4 tolerance meets strict precision requirements. Its lightweight phenolic cage enhances fuel efficiency without compromising strength.

Q&A

SEND INQUIRY