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Super Precision Angular Contact Ball Bearings 7020 ACDGB/HCP4A

Super Precision Angular Contact Ball Bearings 7020 ACDGB/HCP4A

The 7020 ACDGB/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 150mm outer diameter, designed for high-speed applications. It features a 25° contact angle and is made from durable chrome steel with ceramic balls for smooth operation.

This bearing handles radial loads up to 17842 lbf and spins at speeds up to 16000 RPM. Its phenolic cage ensures stability, while the light preload (Class B) reduces vibration during use.

With an open design, it’s easy to lubricate and works in temperatures from -30°C to 110°C. The P4A tolerance class guarantees precision performance.

Ideal for machine tools or high-speed spindles, this bearing can be paired in back-to-back, face-to-face, or tandem arrangements. Weighing 1.05kg, it’s robust yet manageable for its size. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7020 ACDGB/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 150 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 22
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 17842 lbf
  • Static Radial Load 18000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 1.05 kg
  • Price（$） 386.91
Super Precision Angular Contact Ball Bearings 7020 ACDGB/HCP4A dimension drawing
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Features

Performance Features of 7020 ACDGB/HCP4A Bearing

7020 ACDGB/HCP4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and ceramic balls enhance durability while reducing friction for smoother operation.

With a dynamic radial load capacity of 17842 lbf, it handles demanding conditions reliably.

Its phenolic cage ensures stability at high speeds, up to 16,000 rpm.

How Does 7020 ACDGB/HCP4A Bearing Reduce Friction?

7020 ACDGB/HCP4A Bearing uses ceramic balls to minimise friction, improving efficiency in high-speed applications.

The precision P4A tolerance class ensures consistent performance, reducing energy loss.

Its open design allows for effective lubrication, further lowering friction.

This combination makes it ideal for precision machinery requiring smooth operation.

Engineered for Precision: 7020 ACDGB/HCP4A Bearing

7020 ACDGB/HCP4A Bearing offers exceptional accuracy with its P4A tolerance class, suitable for high-precision tasks.

The ceramic balls and phenolic cage work together to maintain stability even at 16,000 rpm.

Its universal matching capability allows flexible arrangement options for varied applications.

With a static radial load of 18000 lbf, it ensures reliable performance under pressure.

Steel vs Ceramic Bearings: Strengths of 7020 ACDGB/HCP4A Bearing

7020 ACDGB/HCP4A Bearing combines chrome steel rings with ceramic balls for enhanced performance.

This mix provides better heat resistance and lower friction compared to all-steel designs.

The ceramic balls also reduce wear, extending the bearing’s service life.

Its 16,000 rpm maximum speed makes it a strong choice for high-speed applications.

Application

Industrial Uses of 7020 ACDGB/HCP4A Bearing
This bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 25° contact angle makes it ideal for handling combined radial and axial loads in precision equipment.

Where Is 7020 ACDGB/HCP4A Bearing Used?
You’ll often find it in automotive applications like electric motor spindles, thanks to its light preload and P4A tolerance class. The open design allows for easy lubrication, ensuring long service life even under demanding conditions.

Optimized for Performance: 7020 ACDGB/HCP4A Bearing
In robotics, this bearing excels in articulated arms due to its high dynamic radial load capacity. The chrome steel rings and ceramic balls provide excellent durability for repetitive movements.

Automotive vs Aerospace: Applications of 7020 ACDGB/HCP4A Bearing
While it’s popular in car transmissions for its smooth operation, aerospace applications benefit from its lightweight ceramic balls. The wide temperature range ensures reliability in both environments.

Essential Roles of 7020 ACDGB/HCP4A Bearing
For medical imaging devices, this bearing offers quiet and precise rotation. Its phenolic cage resists wear, making it a dependable choice for sensitive equipment.

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