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Super Precision Angular Contact Ball Bearings S71930 CD/P4A

Super Precision Angular Contact Ball Bearings S71930 CD/P4A

The S71930 CD/P4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from durable chrome steel. Its 15° contact angle efficiently manages both radial and axial loads, suitable for high-speed operations up to 6300 RPM.

Sealed for protection, this bearing comes pre-lubricated and features a phenolic cage for reduced friction and quiet performance. It handles dynamic radial loads up to 25650 lbf and static loads up to 29700 lbf, making it robust for demanding applications.

With a P4 tolerance class (ABEC-7), it ensures exceptional accuracy for precision machinery. Ideal for use in machine tools, spindles, or high-performance industrial equipment where reliability and precision are key.

Weighing 2.5kg, it’s designed for stability in temperatures ranging from -30°C to 110°C. Its sealed design minimises maintenance, while the universal matching option adds flexibility for custom setups.

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Product Parameters

  • Part Number S71930 CD/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 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 25650 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 6300 rpm
  • Weight 2.5 kg
  • Price（$） 834.759
Super Precision Angular Contact Ball Bearings S71930 CD/P4A dimension drawing
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Features

Why Choose S71930 CD/P4A Bearing for Precision Tasks?

S71930 CD/P4A Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with high precision.

Its chrome steel construction ensures durability and resistance to wear in demanding applications.

With a dynamic radial load capacity of 25650 lbf, it performs reliably under heavy loads.

The phenolic cage maintains ball alignment, reducing friction and extending service life.

How Is S71930 CD/P4A Bearing Engineered for Reliability?

S71930 CD/P4A Bearing is designed with a sealed structure, protecting it from contaminants and ensuring smooth operation.

Its P4 tolerance class (ABEC-7) guarantees high precision, making it suitable for critical applications.

The bearing can handle speeds up to 6,300 rpm while maintaining stability and performance.

Pre-lubricated for ease of use, it reduces maintenance requirements and downtime.

What Makes S71930 CD/P4A Bearing Suitable for High-Temperature Applications?

S71930 CD/P4A Bearing operates efficiently in temperatures ranging from -30° to 110°C.

Its chrome steel rings and balls provide excellent thermal stability under varying conditions.

The phenolic cage material resists heat, ensuring consistent performance in high-temperature environments.

With a static radial load capacity of 29700 lbf, it remains reliable even under extreme conditions.

Application

Common Applications of S71930 CD/P4A Bearing
S71930 CD/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In robotics, S71930 CD/P4A Bearing supports articulated arms, providing smooth movement and reliability. Its phenolic cage offers good heat resistance, making it suitable for continuous operation.

For medical imaging devices, S71930 CD/P4A Bearing’s precision and low noise are essential. The chrome steel rings and balls ensure long-lasting performance in critical applications.

Automotive testing equipment often relies on S71930 CD/P4A Bearing for its ability to handle high radial loads. The P4 tolerance class guarantees consistent performance under demanding conditions.

Q&A

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