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Super Precision Angular Contact Ball Bearings 71902 ACEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71902 ACEGA/HCP4A

The 71902 ACEGA/HCP4A is a super precision angular contact ball bearing with a compact size of 15mm by 28mm by 7mm, crafted from chrome steel and ceramic balls for durability. It handles radial loads up to 691 lbf and reaches speeds of 230,000 RPM, making it suitable for high-performance applications.

Its open design and phenolic cage ensure smooth operation, while the extra light preload (Class A) enhances precision. The bearing works in temperatures from -30°C to 110°C and comes pre-lubricated for ease of use.

This model is interchangeable with SKF bearings and can be paired in back-to-back, face-to-face, or tandem arrangements. Ideal for precision machinery like spindles or dental tools where accuracy is key.

Weighing just 0.013kg, it’s lightweight yet robust. Its P4A tolerance class ensures reliable performance in demanding conditions.

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Product Parameters

  • Part Number 71902 ACEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 15 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 28 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 12
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 691 lbf
  • Static Radial Load 290 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 230000 rpm
  • Weight 0.013 kg
Super Precision Angular Contact Ball Bearings 71902 ACEGA/HCP4A dimension drawing
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Features

Performance Features of 71902 ACEGA/HCP4A Bearing

71902 ACEGA/HCP4A Bearing is designed with a 25° contact angle, ideal for angular contact applications.
Its chrome steel rings and ceramic balls ensure smooth operation and reduced friction.

The phenolic cage maintains ball alignment, enhancing durability and performance.
With a dynamic radial load capacity of 691 lbf, it handles demanding tasks efficiently.

71902 ACEGA/HCP4A Bearing operates at speeds up to 230,000 rpm, making it suitable for high-speed applications.
Its extra light preload ensures precision and stability in performance.

The temperature range of -30°C to 110°C allows reliable operation in various environments.
This bearing is lubricated for long-lasting performance with minimal maintenance.

Its universal matching capability supports back-to-back, face-to-face, or tandem arrangements.
This flexibility makes 71902 ACEGA/HCP4A Bearing adaptable to diverse mechanical needs.

Application

Essential Roles of 71902 ACEGA/HCP4A Bearing
71902 ACEGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The extra light preload ensures smooth operation in precision grinding applications.

In robotics, 71902 ACEGA/HCP4A Bearing provides reliable angular contact support for robotic arms, enhancing movement accuracy. Its P4A tolerance class makes it suitable for tasks requiring tight positional control.

For medical imaging devices, 71902 ACEGA/HCP4A Bearing’s chrome steel rings and ceramic balls offer durability and consistent performance. The open design allows for easy lubrication, extending service life in critical healthcare equipment.

Automotive applications like electric motor shafts benefit from 71902 ACEGA/HCP4A Bearing’s high-speed capability and angular load handling. The metric sizing ensures compatibility with various motor designs.

In 3D printers, 71902 ACEGA/HCP4A Bearing’s precision and low friction contribute to smoother print head movements. The phenolic cage helps maintain stability during rapid directional changes.

Q&A

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