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Super Precision Angular Contact Ball Bearings S7212 ACD/HCP4AQBCD

Super Precision Angular Contact Ball Bearings S7212 ACD/HCP4AQBCD

The S7212 ACD/HCP4AQBCD is a super precision angular contact ball bearing with a 60mm bore and 110mm outer diameter, designed for heavy loads and high speeds. Its 25° contact angle and sealed design ensure smooth operation under demanding conditions.

Made from chrome steel rings and ceramic balls, it handles dynamic radial loads up to 32850 lbf and spins at speeds up to 32500 RPM. The phenolic cage adds durability while the grease lubrication simplifies maintenance.

This set includes four matched bearings with a heavy preload (Class D), ideal for precise applications like machine tool spindles. The P4A tolerance class guarantees high accuracy.

Weighing 2.83kg, it operates in temperatures from -30°C to 110°C. Its sealed construction keeps contaminants out, making it reliable for industrial use.

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Product Parameters

  • Part Number S7212 ACD/HCP4AQBCD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 110 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 88 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 16
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 32850 lbf
  • Static Radial Load 40500 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 32500 rpm
  • Weight 2.83 kg
Super Precision Angular Contact Ball Bearings S7212 ACD/HCP4AQBCD dimension drawing
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Features

How Does S7212 ACD/HCP4AQBCD Bearing Achieve Super Precision?

S7212 ACD/HCP4AQBCD Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
The ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

With a dynamic radial load capacity of 32,850 lbf, it handles demanding tasks effortlessly.
Its phenolic cage maintains ball alignment, enhancing durability and performance.

The sealed design and grease lubrication reduce maintenance needs.
It operates efficiently at speeds up to 32,500 rpm, making it ideal for high-speed machinery.

The matched set of four bearings ensures consistent performance.
Its P4A tolerance class guarantees precision in critical applications.

Application

Super Precision Angular Contact Ball Bearings S7212 ACD/HCP4AQBCD are commonly used in high-speed machine tools, where their ceramic balls and phenolic cage reduce friction and heat buildup. The heavy preload ensures stability during precision machining operations.
In robotics, S7212 ACD/HCP4AQBCD Bearings provide smooth motion control for articulated arms, thanks to their 25° contact angle and matched arrangement. The sealed design keeps contaminants out, extending service life in dusty environments.
For aerospace applications, S7212 ACD/HCP4AQBCD Bearings handle both radial and axial loads in aircraft components, where their P4A tolerance class meets strict industry standards. The grease lubrication works well within the specified temperature range.
Medical imaging devices benefit from S7212 ACD/HCP4AQBCD Bearings’ quiet operation and vibration damping properties. The chrome steel rings and ceramic balls maintain performance in sensitive diagnostic equipment.
In automotive testing equipment, S7212 ACD/HCP4AQBCD Bearings support high rotational speeds while maintaining accuracy. Their four-bearing matched set configuration distributes loads evenly for consistent results.

Q&A

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