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Super Precision Angular Contact Ball Bearings 7211 ACD/HCP4ADBC

Super Precision Angular Contact Ball Bearings 7211 ACD/HCP4ADBC

The 7211 ACD/HCP4ADBC is a super precision angular contact ball bearing with a 55mm bore and 100mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched pair for balanced performance.

This bearing handles radial loads up to 19170 lbf and reaches speeds of 34000 RPM, thanks to its ceramic balls and phenolic cage. Its open design allows for easy lubrication and maintenance.

The moderate preload (Class C) ensures smooth operation under angular loads, while the P4A tolerance class guarantees precision. Ideal for high-speed applications like machine tool spindles or precision instruments.

Weighing 1.01kg, it operates efficiently in temperatures from -30°C to 110°C. The matched pair arrangement (DB) provides stability for demanding setups.

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Product Parameters

  • Part Number 7211 ACD/HCP4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 42 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 15
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 19170 lbf
  • Static Radial Load 18338 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 1.01 kg
Super Precision Angular Contact Ball Bearings 7211 ACD/HCP4ADBC dimension drawing
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Features

How Does 7211 ACD/HCP4ADBC Bearing Achieve Super Precision?

7211 ACD/HCP4ADBC Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.

Its ceramic balls and chrome steel rings reduce friction, ensuring smooth operation even at high speeds up to 34,000 rpm.

The phenolic cage maintains ball alignment, enhancing durability and performance.

With a dynamic radial load capacity of 19,170 lbf, it excels in demanding applications.

Application

Industrial Uses of 7211 ACD/HCP4ADBC Bearing
This bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The matched arrangement ensures stability in demanding industrial environments.

In automotive applications, 7211 ACD/HCP4ADBC Bearing supports precision components like turbochargers and transmission systems. Its moderate preload helps maintain alignment under angular loads, improving overall vehicle performance.

For robotics and automation, 7211 ACD/HCP4ADBC Bearing provides smooth motion in articulated arms and CNC machinery. The P4A tolerance class guarantees the accuracy needed for repetitive tasks.

Medical imaging devices benefit from 7211 ACD/HCP4ADBC Bearing’s reliable operation and low vibration. The chrome steel rings and ceramic balls ensure long service life in critical healthcare equipment.

In aerospace systems, 7211 ACD/HCP4ADBC Bearing handles both radial and axial loads in flight control mechanisms. Its temperature range makes it suitable for various operating conditions.

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