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Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4A

Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4A

The 71948 ACD/HCP4A is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and is designed for angular contact loads, handling up to 48600 lbf dynamically.

Its open design and phenolic cage ensure smooth operation at speeds up to 6300 RPM, while the ceramic balls reduce friction. The bearing is preloaded and available in matched sets for enhanced performance.

This model is interchangeable with SKF bearings, making it a versatile choice for precision applications. Ideal for machine tools or high-speed spindles where accuracy is crucial.

Weighing 5.98kg, it operates reliably in temperatures from -30°C to 110°C. Compliant with P4 tolerance standards for exceptional precision.

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Product Parameters

  • Part Number 71948 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 240 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 320 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 38 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 31
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 48600 lbf
  • Static Radial Load 68625 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 6300 rpm
  • Weight 5.98 kg
  • Price（$） 566.964
Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4A dimension drawing
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Features

Performance Features of 71948 ACD/HCP4A Bearing

71948 ACD/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

The phenolic cage maintains ball alignment, ensuring consistent performance even at high speeds up to 6,300 rpm.
With a dynamic radial load capacity of 48,600 lbf, it handles demanding conditions reliably.

71948 ACD/HCP4A Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its precision P4 tolerance class ensures high accuracy for critical applications.

Application

Industrial Uses of 71948 ACD/HCP4A Bearing
71948 ACD/HCP4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

Where Is 71948 ACD/HCP4A Bearing Used?
In aerospace components, 71948 ACD/HCP4A Bearing provides reliable performance in gearboxes and rotor systems. Its phenolic cage offers stability under varying temperatures, which is crucial for flight conditions.

Optimized for Performance: 71948 ACD/HCP4A Bearing
For automation systems, 71948 ACD/HCP4A Bearing supports robotic arms with smooth motion and low maintenance needs. The P4 tolerance class ensures consistent precision in repetitive tasks.

Automotive vs Aerospace: Applications of 71948 ACD/HCP4A Bearing
In automotive testing equipment, 71948 ACD/HCP4A Bearing handles high loads with minimal wear. Meanwhile, its lightweight design and ceramic balls make it equally effective in aerospace navigation systems.

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