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Super Precision Angular Contact Ball Bearings 71919 ACB/P4A

Super Precision Angular Contact Ball Bearings 71919 ACB/P4A

The 71919 ACB/P4A is a super precision angular contact ball bearing with a 95mm bore and 130mm outer diameter, crafted from high-grade chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 3870 lbf.

Designed for high-speed applications, it can spin up to 18,000 RPM and operates smoothly in temperatures from -30°C to 110°C. Its phenolic cage ensures durability and reduces friction.

The open seal type allows for easy lubrication, while the P4 tolerance class guarantees exceptional precision. This bearing is interchangeable with SKF models, making it a versatile choice.

Ideal for precision machinery like spindles or CNC equipment, where accuracy and speed are crucial. Weighing 0.61kg, it balances strength and performance for demanding applications.

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Product Parameters

  • Part Number 71919 ACB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 95 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 130 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 38
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3870 lbf
  • Static Radial Load 3960 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 18000 rpm
  • Weight 0.61 kg
  • Price（$） 112.221
Super Precision Angular Contact Ball Bearings 71919 ACB/P4A dimension drawing
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Features

Performance Features of 71919 ACB/P4A Bearing

71919 ACB/P4A Bearing is crafted with chrome steel rings and balls, ensuring durability and high performance.
Its 25° contact angle provides excellent angular contact load handling, suitable for precision applications.
The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 18,000 rpm, it delivers reliable performance in high-speed scenarios.

How Does 71919 ACB/P4A Bearing Reduce Friction?

71919 ACB/P4A Bearing features a precision-engineered phenolic cage that minimises friction during operation.
The chrome steel construction ensures smooth movement, even under dynamic radial loads up to 3870 lbf.
Its open design allows for effective lubrication, further reducing wear and tear.
This makes it ideal for applications requiring high-speed and low-friction performance.

Engineered for Precision: 71919 ACB/P4A Bearing

71919 ACB/P4A Bearing meets P4 tolerance class standards, ensuring exceptional precision and accuracy.
The 38 chrome steel balls, each 7.144 mm in diameter, contribute to its high load-carrying capacity.
Its matched arrangement and preload options enhance stability in demanding setups.
Operating within a temperature range of -30° to 110°C, it remains reliable in varied conditions.

Steel vs Ceramic Bearings: Strengths of 71919 ACB/P4A Bearing

71919 ACB/P4A Bearing uses chrome steel for both rings and balls, offering a balance of strength and affordability.
The material choice ensures high static radial load capacity of 3960 lbf, suitable for heavy-duty applications.
Unlike ceramic bearings, it provides excellent resistance to impact and shock loads.
Its phenolic cage adds to the durability, making it a practical choice for industrial use.

Application

Key Fields for 71919 ACB/P4A Bearing
71919 ACB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 71919 ACB/P4A Bearing supports critical components like turbine shafts, thanks to its P4 tolerance class. Its chrome steel construction provides durability under extreme conditions.

For robotics, 71919 ACB/P4A Bearing offers reliable performance in articulated arms, where smooth movement is essential. The open design allows for easy lubrication, extending its service life.

Automotive systems benefit from 71919 ACB/P4A Bearing in gearboxes, where its dynamic radial load capacity ensures consistent performance. The 25° contact angle helps manage combined loads effectively.

Medical imaging equipment relies on 71919 ACB/P4A Bearing for precise movement in scanners. Its low vibration characteristics make it ideal for sensitive diagnostic devices.

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