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Super Precision Angular Contact Ball Bearings 7021 CD/HCP4A

Super Precision Angular Contact Ball Bearings 7021 CD/HCP4A

The 7021 CD/HCP4A is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 21510 lbf and can spin at speeds up to 15000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduces friction.

The open design allows for easy lubrication, while the P4 tolerance class guarantees precise performance. It works reliably in temperatures from -30°C to 110°C.

Ideal for use in machine tools or spindle systems where precision and speed are crucial. Weighing 1.32kg, it’s a robust choice for demanding industrial environments. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7021 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 160 mm
  • Outer Dia Tolerance -0.01mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 17.462 mm
  • Ball Qty 21
  • 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 21510 lbf
  • Static Radial Load 21712 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.32 kg
  • Price（$） 117.666
Super Precision Angular Contact Ball Bearings 7021 CD/HCP4A dimension drawing
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Features

Performance Features of 7021 CD/HCP4A Bearing

7021 CD/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

With a dynamic radial load capacity of 21510 lbf, it handles demanding conditions reliably.
Its phenolic cage ensures smooth operation, even at high speeds up to 15,000 rpm.

The P4 tolerance class guarantees precision, making it suitable for high-accuracy tasks.
Lubrication is pre-applied, simplifying initial setup and maintenance.

Application

How Does 7021 CD/HCP4A Bearing Improve Performance?
In high-speed machine tools, 7021 CD/HCP4A Bearing excels with its 15° contact angle and ceramic balls, reducing friction for smoother operation. The phenolic cage ensures quiet running, ideal for precision grinding applications.

Where Is 7021 CD/HCP4A Bearing Used?
Automotive testing rigs benefit from 7021 CD/HCP4A Bearing’s P4 tolerance, providing accurate data collection under angular loads. Its matched arrangement option simplifies installation in complex drivetrain setups.

Perfect Fit for Automation: 7021 CD/HCP4A Bearing
Robotic arms rely on 7021 CD/HCP4A Bearing’s consistent performance in repetitive motion tasks. The lubricated design extends service intervals, reducing downtime in production lines.

Medical vs Industrial: Where 7021 CD/HCP4A Bearing Excels
While suitable for industrial centrifuges, 7021 CD/HCP4A Bearing also meets medical imaging equipment needs with its low-vibration ceramic components. The chrome steel rings withstand frequent sterilization cycles.

Key Fields for 7021 CD/HCP4A Bearing
Aerospace applications value 7021 CD/HCP4A Bearing’s lightweight phenolic cage and high-speed capability. The 160mm outer diameter fits standard housings in avionics cooling systems.

Q&A

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