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Super Precision Angular Contact Ball Bearings 71917 ACEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71917 ACEGA/HCP4A

The 71917 ACEGA/HCP4A is a super precision angular contact ball bearing, measuring 85mm by 120mm by 18mm. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

With a 25° contact angle, it handles both radial and axial loads efficiently. Its extra light preload ensures minimal friction, making it suitable for high-speed applications up to 28,000 RPM.

The open design allows easy lubrication, while the phenolic cage enhances performance. It works in temperatures from -30°C to 110°C, ideal for demanding environments.

This bearing is interchangeable with SKF models and comes in matched sets for back-to-back, face-to-face, or tandem arrangements. Perfect for precision machinery like spindles or high-speed tools.

Weighing 0.42kg, it balances lightweight design with robust performance, meeting P4A tolerance standards for accuracy.

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Product Parameters

  • Part Number 71917 ACEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 85 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 23
  • 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 6322 lbf
  • Static Radial Load 4860 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 0.42 kg
Super Precision Angular Contact Ball Bearings 71917 ACEGA/HCP4A dimension drawing
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Features

Performance Features of 71917 ACEGA/HCP4A Bearing

71917 ACEGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.
Its 25° contact angle ensures optimal load distribution, making it suitable for angular contact applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 6322 lbf, it handles demanding conditions effortlessly.

71917 ACEGA/HCP4A Bearing operates smoothly at speeds up to 28,000 rpm, thanks to its ceramic balls.
The extra light preload (Class A) ensures minimal resistance and efficient operation.

Designed for universal matching, it supports back-to-back, face-to-face, or tandem arrangements.
This flexibility makes it ideal for complex machinery requiring precise bearing configurations.

The temperature range of -30°C to 110°C ensures reliable performance in various environments.
Its P4A tolerance class guarantees high precision, meeting stringent industry standards.

Application

Super Precision Angular Contact Ball Bearings 71917 ACEGA/HCP4A are commonly used in high-speed machine tools, where their ceramic balls and phenolic cage reduce friction and heat buildup.
The 25° contact angle ensures smooth operation under combined radial and axial loads, making them ideal for precision grinding spindles.

In robotics, 71917 ACEGA/HCP4A Bearings provide the accuracy needed for articulated arms, thanks to their P4A tolerance class.
Their lightweight design and high-speed capability (up to 28,000 rpm) make them a reliable choice for automated assembly lines.

For aerospace applications, 71917 ACEGA/HCP4A Bearings handle the demanding conditions of flight control systems.
The chrome steel rings and ceramic balls offer durability while maintaining performance across a wide temperature range (-30°C to 110°C).

In medical imaging devices like MRI machines, 71917 ACEGA/HCP4A Bearings ensure quiet and vibration-free operation.
The extra light preload (Class A) minimises noise, which is critical in sensitive diagnostic equipment.

For high-performance electric motors, 71917 ACEGA/HCP4A Bearings support efficient power transmission.
Their universal matching capability allows for flexible configurations (back-to-back, face-to-face, or tandem) to suit various motor designs.

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