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Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4ADGA

Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4ADGA

The 71948 ACD/HCP4ADGA is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, measuring 76mm in width. Made from chrome steel rings and ceramic balls, it offers high durability and smooth operation.

This bearing handles radial loads up to 78975 lbf and spins at speeds up to 7500 RPM. Its extra light preload ensures minimal friction, ideal for precision applications.

The open design and phenolic cage allow for easy lubrication and long service life. It can operate in temperatures from -30°C to 110°C.

Designed for universal matching, it works in back-to-back, face-to-face, or tandem arrangements. Perfect for high-precision machinery like spindles or CNC equipment.

Weighing 12kg, it’s robust yet efficient for demanding industrial uses. Compliant with P4A tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71948 ACD/HCP4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 240 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 320 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 76 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 31
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 78975 lbf
  • Static Radial Load 137250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 12 kg
Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4ADGA dimension drawing
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Features

Performance Features of 71948 ACD/HCP4ADGA Bearing

71948 ACD/HCP4ADGA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and ceramic balls enhance durability and reduce friction during high-speed operation.

With a dynamic radial load capacity of 78,975 lbf, it handles demanding conditions reliably.

Its phenolic cage ensures smooth performance, even at speeds up to 7,500 rpm.

Application

Practical Applications of 71948 ACD/HCP4ADGA Bearing
71948 ACD/HCP4ADGA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for high-speed operations.

In aerospace applications, 71948 ACD/HCP4ADGA Bearing supports critical components like turbine shafts, thanks to its extra light preload and universal matching. Its phenolic cage offers durability in demanding environments.

For robotics, 71948 ACD/HCP4ADGA Bearing provides smooth motion in articulated arms, with its P4A tolerance class ensuring consistent performance. The chrome steel rings add strength for long-term reliability.

Medical imaging systems benefit from 71948 ACD/HCP4ADGA Bearing’s precision, as it maintains stability in high-resolution scanners. The lubricated design also minimises maintenance needs.

In automation equipment, 71948 ACD/HCP4ADGA Bearing handles repetitive tasks efficiently, with its tandem arrangement optimising load distribution. The metric sizing ensures compatibility with European machinery standards.

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