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Super Precision Angular Contact Ball Bearings 727 CD/HCP4A

Super Precision Angular Contact Ball Bearings 727 CD/HCP4A

The 727 CD/HCP4A is a super precision angular contact ball bearing with a compact 7mm bore and 22mm outer diameter. Made from chrome steel and ceramic balls, it offers smooth operation and durability.

With a 15° contact angle, it handles both radial and thrust loads efficiently, supporting up to 666 lbf dynamically. Its phenolic cage ensures quiet performance even at high speeds of 150,000 RPM.

The open design allows easy lubrication, while the P4 tolerance class guarantees precise alignment. Ideal for applications like spindles or high-speed machinery where accuracy is key.

Weighing just 12 grams, it’s lightweight yet robust. Compatible with SKF bearings, it’s a reliable choice for replacements or upgrades in demanding environments.

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Product Parameters

  • Part Number 727 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 7 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 22 mm
  • Outer Dia Tolerance -0.005mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 9
  • Contact Angle 15°
  • 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 666 lbf
  • Static Radial Load 261 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 150000 rpm
  • Weight 0.012 kg
  • Price（$） 93.969
Super Precision Angular Contact Ball Bearings 727 CD/HCP4A dimension drawing
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Features

Performance Features of 727 CD/HCP4A Bearing

727 CD/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact 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 maximum speed of 150,000 rpm, it delivers reliable performance in precision tasks.

727 CD/HCP4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its P4 tolerance class guarantees high precision, making it suitable for demanding applications.

Application

Practical Applications of 727 CD/HCP4A Bearing
727 CD/HCP4A Bearing is commonly used in high-speed machine spindles, where its 15° contact angle ensures smooth rotation under radial and axial loads. The ceramic balls reduce friction, making it ideal for precision machining.

In robotics, 727 CD/HCP4A Bearing provides reliable performance in articulated arms, thanks to its phenolic cage and P4 tolerance class. Its compact size fits well in tight spaces without compromising on durability.

For dental handpieces, 727 CD/HCP4A Bearing’s high-speed capability and low heat generation are key advantages. The open design allows for easy lubrication, extending the bearing’s service life in demanding medical environments.

Where Is 727 CD/HCP4A Bearing Used?
You’ll often find 727 CD/HCP4A Bearing in 3D printers, where its precision and speed are crucial for accurate layer deposition. The matched arrangement option also helps in maintaining alignment in multi-axis systems.

In optical equipment, 727 CD/HCP4A Bearing’s minimal vibration ensures clear imaging. Its chrome steel rings and ceramic balls work together to deliver consistent performance over long periods.

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