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Super Precision Angular Contact Ball Bearings 71930 ACD/P4A

Super Precision Angular Contact Ball Bearings 71930 ACD/P4A

The 71930 ACD/P4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 24300 lbf and operates smoothly at speeds up to 8500 RPM.

With a 25° contact angle and phenolic cage, it offers excellent stability and low friction. The open design allows for easy lubrication, ensuring long-lasting performance in temperatures from -30°C to 110°C.

This bearing is interchangeable with SKF models, making it a versatile choice for replacements. Ideal for high-precision applications like machine tools or spindle systems where accuracy is crucial.

Weighing 2.5kg, it’s robust yet manageable for its size. Compliant with P4 tolerance standards, it delivers reliable performance in demanding conditions.

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Product Parameters

  • Part Number 71930 ACD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 28 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 23
  • Contact Angle 25°
  • 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 24300 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 8500 rpm
  • Weight 2.5 kg
  • Price（$） 818.388
Super Precision Angular Contact Ball Bearings 71930 ACD/P4A dimension drawing
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Features

Why Choose 71930 ACD/P4A Bearing for Precision Tasks?

71930 ACD/P4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel construction ensures durability and resistance to wear in high-speed applications.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 8,500 rpm, it delivers reliable operation in demanding conditions.

How Is 71930 ACD/P4A Bearing Engineered for Reliability?

71930 ACD/P4A Bearing is designed with a P4 tolerance class, offering superior precision for critical applications.
The chrome steel rings and balls provide excellent load capacity, supporting dynamic radial loads up to 24,300 lbf.
Its open design allows for easy lubrication, ensuring smooth operation over time.
The bearing’s temperature range of -30° to 110°C makes it suitable for various environments.

Built for Reliability: 71930 ACD/P4A Bearing

71930 ACD/P4A Bearing’s robust chrome steel construction ensures long-lasting performance under heavy loads.
The phenolic cage reduces friction and noise, making it ideal for precision machinery.
With a static radial load capacity of 28,125 lbf, it handles demanding applications with ease.
Its high-speed capability of 8,500 rpm ensures efficiency in operation.

Steel vs Ceramic Bearings: Strengths of 71930 ACD/P4A Bearing

71930 ACD/P4A Bearing’s chrome steel components provide excellent strength and durability.
The phenolic cage offers low friction and quiet operation, unlike some ceramic alternatives.
Its high load capacity and precision tolerance make it a reliable choice for industrial use.
The bearing’s wide temperature range ensures versatility in different working conditions.

Application

Key Fields for 71930 ACD/P4A Bearing
71930 ACD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate radial and axial load handling. The phenolic cage contributes to smooth operation at high speeds, making it suitable for demanding industrial environments.

In aerospace applications, 71930 ACD/P4A Bearing supports critical components like turbine shafts, thanks to its P4 tolerance class and reliable performance under extreme conditions. Its chrome steel construction also provides excellent durability in these high-stress scenarios.

For automation systems, 71930 ACD/P4A Bearing is a solid choice for robotic arms and CNC machinery, where precision and low friction are essential. The open design allows for easy lubrication, ensuring long service life even in continuous operation.

Medical imaging devices benefit from 71930 ACD/P4A Bearing’s consistent performance and low noise levels. The combination of chrome steel rings and phenolic cage ensures reliability in sensitive equipment where precision is paramount.

In electric motors, 71930 ACD/P4A Bearing handles high-speed rotations with ease, thanks to its balanced design and quality materials. This makes it a dependable option for both industrial and consumer applications requiring quiet and efficient operation.

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