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Super Precision Angular Contact Ball Bearings 7044 ACD/HCP4A

Super Precision Angular Contact Ball Bearings 7044 ACD/HCP4A

The 7044 ACD/HCP4A is a super precision angular contact ball bearing with a 220mm bore and 340mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 71775 lbf and operates smoothly at speeds up to 6700 RPM.

Its 25° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows for easy lubrication. The bearing works reliably in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings and comes with optional preload and matched arrangements for tailored setups. Ideal for high-precision applications like machine tool spindles or industrial gearboxes.

Weighing 13.2kg, it’s robust yet designed for precision. Compliant with P4 tolerance class (ABEC-7) for exceptional accuracy.

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Product Parameters

  • Part Number 7044 ACD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 220 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 340 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 56 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 38.1 mm
  • Ball Qty 21
  • 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 71775 lbf
  • Static Radial Load 99000 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 6700 rpm
  • Weight 13.2 kg
  • Price（$） 4625.712
Super Precision Angular Contact Ball Bearings 7044 ACD/HCP4A dimension drawing
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Features

Performance Features of 7044 ACD/HCP4A Bearing

7044 ACD/HCP4A Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
The chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

With a dynamic radial load capacity of 71775 lbf, it performs reliably in high-demand applications.
Its phenolic cage ensures stable ball alignment, contributing to extended service life.

The bearing operates efficiently at speeds up to 6,700 rpm, maintaining precision under stress.
Its open design allows for easy lubrication, ensuring consistent performance over time.

7044 ACD/HCP4A Bearing is suitable for temperatures ranging from -30° to 110°C, adapting to various conditions.
The P4 tolerance class guarantees high precision, making it ideal for critical machinery.

Application

Essential Roles of 7044 ACD/HCP4A Bearing
7044 ACD/HCP4A Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

In aerospace components, 7044 ACD/HCP4A Bearing supports critical systems like turbine shafts, thanks to its phenolic cage and P4 tolerance class. Its matched arrangement option further enhances performance in demanding flight conditions.

For robotics, 7044 ACD/HCP4A Bearing provides smooth motion in articulated arms, where precision and durability are key. The open design allows for easy lubrication, extending service life in continuous operation.

Medical imaging devices benefit from 7044 ACD/HCP4A Bearing’s low vibration and high rigidity, ensuring clear scans. The chrome steel rings and ceramic balls offer reliable performance in sterile environments.

In automation systems, 7044 ACD/HCP4A Bearing excels in linear guides and rotary tables, where its preload capability maintains positional accuracy. The metric sizing ensures compatibility with European and Asian equipment standards.

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