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Super Precision Angular Contact Ball Bearings 71964 ACDMA/HCP4A

Super Precision Angular Contact Ball Bearings 71964 ACDMA/HCP4A

The 71964 ACDMA/HCP4A is a super precision angular contact ball bearing with a 320mm bore and 440mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 78975 lbf and operates smoothly at speeds up to 4300 RPM.

Its 25° contact angle and ceramic balls reduce friction, while the phenolic cage ensures quiet performance. The bearing is preloaded for stability and works in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings and meets P4 tolerance standards for high accuracy. Ideal for precision machinery like CNC spindles or high-speed applications.

Weighing 20.5kg, it’s robust yet designed for efficiency. Available in matched sets for paired use, ensuring consistent performance.

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Product Parameters

  • Part Number 71964 ACDMA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 320 mm
  • Bore Dia Tolerance -0.016mm to 0
  • Outer Dia 440 mm
  • Outer Dia Tolerance -0.02mm to 0
  • Width 56 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 38.1 mm
  • Ball Qty 27
  • 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 78975 lbf
  • Static Radial Load 131625 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 4300 rpm
  • Weight 20.5 kg
  • Price（$） 991.62
Super Precision Angular Contact Ball Bearings 71964 ACDMA/HCP4A dimension drawing
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Features

Engineered for Precision: 71964 ACDMA/HCP4A Bearing

71964 ACDMA/HCP4A Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
The chrome steel rings and ceramic balls ensure smooth operation with minimal friction.

With a dynamic radial load capacity of 78,975 lbf, it handles demanding conditions reliably.
Its phenolic cage maintains ball alignment, enhancing durability and performance.

The bearing operates efficiently at speeds up to 4,300 rpm, suitable for precision machinery.
Its open design allows for easy lubrication, ensuring consistent performance over time.

Application

Where Is 71964 ACDMA/HCP4A Bearing Used?
71964 ACDMA/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 ideal for high-speed spindle applications.

In aerospace components, 71964 ACDMA/HCP4A Bearing provides reliable performance in gearboxes and rotor systems. Its phenolic cage offers lightweight durability, crucial for reducing overall aircraft weight.

For medical imaging devices, 71964 ACDMA/HCP4A Bearing’s P4 tolerance class guarantees smooth, vibration-free operation. The chrome steel rings and ceramic balls ensure long service life even in demanding environments.

Automation systems benefit from 71964 ACDMA/HCP4A Bearing’s matched arrangement, which simplifies installation in robotic arms. The open design allows for easy lubrication, maintaining peak performance over time.

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