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Super Precision Angular Contact Ball Bearings S7011 ACB/HCP4A

Super Precision Angular Contact Ball Bearings S7011 ACB/HCP4A

The S7011 ACB/HCP4A is a super precision angular contact ball bearing with a 55mm bore and 90mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 2992 lbf.

This sealed bearing comes pre-lubricated and can handle speeds up to 24,000 RPM, making it ideal for machine tools or spindles. The phenolic cage and chrome steel rings offer durability while keeping weight low at just 0.4kg.

With a P4 tolerance class, it provides exceptional accuracy for demanding tasks. The sealed design reduces maintenance, and matched arrangements are available for paired installations. Suitable for environments with temperatures ranging from -30°C to 110°C.

Its compact 18mm width fits space-sensitive setups, while the ceramic balls minimise friction. A reliable choice for precision engineering, interchangeable with SKF equivalents for easy replacement.

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Product Parameters

  • Part Number S7011 ACB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.007mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.747 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2992 lbf
  • Static Radial Load 2340 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 24000 rpm
  • Weight 0.4 kg
  • Price（$） 397.962
Super Precision Angular Contact Ball Bearings S7011 ACB/HCP4A dimension drawing
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Features

Why Choose S7011 ACB/HCP4A Bearing for Precision Tasks?

S7011 ACB/HCP4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its ceramic balls and chrome steel rings ensure smooth operation, even at speeds up to 24,000 rpm.
The phenolic cage provides excellent stability, reducing friction and wear.
With a P4 tolerance class, it meets stringent accuracy requirements for demanding applications.

Application

Common Applications of S7011 ACB/HCP4A Bearing
S7011 ACB/HCP4A Bearing is widely used in high-speed machine tools, where its precision and ceramic balls reduce friction for smoother operation. The sealed design keeps contaminants out, extending service life in demanding environments.

In robotics, S7011 ACB/HCP4A Bearing excels in articulated arms, providing reliable angular contact support for precise movements. Its phenolic cage offers lightweight durability, ideal for repetitive motion tasks.

For medical imaging devices, S7011 ACB/HCP4A Bearing’s P4 tolerance ensures minimal vibration during high-resolution scans. The lubricated design maintains quiet operation, crucial for sensitive diagnostic equipment.

Automotive electric motors benefit from S7011 ACB/HCP4A Bearing’s high-speed capability, handling radial and axial loads efficiently. Its 25° contact angle optimises performance in compact motor designs.

In 3D printers, S7011 ACB/HCP4A Bearing’s matched arrangement improves print head alignment for better accuracy. The ceramic balls resist wear from constant directional changes during printing.

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