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Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4ATBTA

Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4ATBTA

The 71948 ACD/HCP4ATBTA is a super precision angular contact ball bearing with a 240mm bore and 320mm outer diameter, crafted from high-quality chrome steel and ceramic balls. It handles radial loads up to 103950 lbf and operates smoothly at speeds up to 7500 RPM.

Its phenolic cage and 25° contact angle ensure stability and reduced friction, while the extra-light preload enhances precision. The open design allows for easy lubrication, making maintenance straightforward.

This bearing is part of a matched set of three, arranged in a TBT configuration for balanced performance. Ideal for high-precision applications like machine tool spindles or aerospace components, where accuracy is crucial.

Weighing 17.9kg, it’s robust yet designed for efficiency. Compliant with P4A tolerance standards, it offers reliable performance in temperatures from -30°C to 110°C.

Interchangeable with SKF bearings, it’s a versatile choice for replacements or upgrades. Its ceramic balls and phenolic cage contribute to long-lasting durability in demanding environments.

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Product Parameters

  • Part Number 71948 ACD/HCP4ATBTA
  • 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 114 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 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 103950 lbf
  • Static Radial Load 205875 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 7500 rpm
  • Weight 17.9 kg
Super Precision Angular Contact Ball Bearings 71948 ACD/HCP4ATBTA dimension drawing
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Features

Performance Features of 71948 ACD/HCP4ATBTA Bearing

71948 ACD/HCP4ATBTA Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage maintains ball alignment, ensuring smooth operation even at high speeds.
With a dynamic radial load capacity of 103950 lbf, it handles demanding conditions reliably.

71948 ACD/HCP4ATBTA Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its extra light preload (Class A) ensures minimal resistance, ideal for precision tasks.

The matched arrangement of three bearings (TBT) provides stability in complex setups.
Lubrication is pre-applied, simplifying initial installation and reducing maintenance needs.

Application

Industrial Uses of 71948 ACD/HCP4ATBTA Bearing
71948 ACD/HCP4ATBTA 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/HCP4ATBTA Bearing supports critical components like turbine shafts, thanks to its extra-light preload and P4A tolerance. The phenolic cage adds durability in demanding environments.

For automation systems, 71948 ACD/HCP4ATBTA Bearing provides reliable performance in robotic arms and CNC machines. Its matched arrangement of three bearings enhances stability under heavy radial loads.

Medical imaging devices benefit from 71948 ACD/HCP4ATBTA Bearing’s smooth operation and low heat generation. The chrome steel rings ensure long-lasting performance in sensitive equipment.

In electric motors, 71948 ACD/HCP4ATBTA Bearing’s lubricated design reduces maintenance needs while handling high dynamic loads. The metric sizing makes it compatible with a variety of industrial motor designs.

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