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Super Precision Angular Contact Ball Bearings S71930 CD/HCP4A

Super Precision Angular Contact Ball Bearings S71930 CD/HCP4A

The S71930 CD/HCP4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, designed for high-performance applications. Its compact 28mm width and sealed design make it suitable for tight spaces while keeping contaminants out.

Made from chrome steel with ceramic balls, it handles radial loads up to 25650 lbf and spins smoothly at 7500 RPM. The phenolic cage ensures quiet operation and durability, even in demanding conditions.

With a 15° contact angle and P4 tolerance class, it offers excellent accuracy for precision machinery. Preload options and matched arrangements are available for enhanced stability.

Ideal for CNC spindles or high-speed tooling, this bearing operates reliably between -30°C and 110°C. Weighing 2.1kg, it balances strength and precision for industrial use.

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Product Parameters

  • Part Number S71930 CD/HCP4A
  • 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 Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 25650 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 7500 rpm
  • Weight 2.1 kg
  • Price（$） 2553.741
Super Precision Angular Contact Ball Bearings S71930 CD/HCP4A dimension drawing
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Features

How Is S71930 CD/HCP4A Bearing Engineered for Reliability?

S71930 CD/HCP4A Bearing features a 15° contact angle, optimised for precision angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.
With a dynamic radial load capacity of 25,650 lbf, it handles demanding operations smoothly.
Its phenolic cage ensures stable performance at high speeds up to 7,500 rpm.

Application

Ideal for Precision: S71930 CD/HCP4A Bearing
S71930 CD/HCP4A Bearing is widely used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

In aerospace components, S71930 CD/HCP4A Bearing provides reliable performance in gearboxes and rotor systems. Its phenolic cage offers stability under varying temperatures, which is crucial for flight conditions.

For automation systems, S71930 CD/HCP4A Bearing supports robotic arms and CNC machinery with its matched arrangement option. The P4 tolerance class guarantees consistent precision in repetitive tasks.

Medical imaging devices benefit from S71930 CD/HCP4A Bearing’s sealed design, preventing contamination in sensitive environments. The chrome steel rings ensure long-term durability in continuous operation.

Q&A

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