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Super Precision Angular Contact Ball Bearings S71920 ACB/HCP4ADGA

Super Precision Angular Contact Ball Bearings S71920 ACB/HCP4ADGA

The S71920 ACB/HCP4ADGA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 7470 lbf.

This sealed bearing comes pre-greased and can handle speeds up to 10,000 RPM, making it ideal for high-performance applications. The phenolic cage adds durability while keeping weight low at just 1.67kg.

Designed for universal matching, it works in back-to-back, face-to-face, or tandem arrangements. Perfect for precision machinery like spindles or CNC tools where accuracy and speed matter.

With a temperature range of -30°C to 110°C, it’s reliable in various conditions. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number S71920 ACB/HCP4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 37
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Universal matching
  • 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 7470 lbf
  • Static Radial Load 9562 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 1.67 kg
Super Precision Angular Contact Ball Bearings S71920 ACB/HCP4ADGA dimension drawing
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Features

Performance Features of S71920 ACB/HCP4ADGA Bearing

S71920 ACB/HCP4ADGA Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 25° contact angle provides excellent load distribution, making it ideal for angular contact applications.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.

Why Choose S71920 ACB/HCP4ADGA Bearing for Precision Tasks?

S71920 ACB/HCP4ADGA Bearing offers a dynamic radial load capacity of 7470 lbf, suitable for demanding operations.
The sealed design and grease lubrication ensure smooth operation with minimal maintenance.
With a maximum speed of 10,000 rpm, it delivers reliable performance in high-speed applications.

Engineered for Precision: S71920 ACB/HCP4ADGA Bearing

S71920 ACB/HCP4ADGA Bearing features a universal matching design, allowing flexible arrangement options.
The extra light preload (Class A) ensures minimal friction and optimal accuracy.
Its temperature range of -30°C to 110°C makes it adaptable to various working conditions.

Steel vs Ceramic Bearings: Strengths of S71920 ACB/HCP4ADGA Bearing

S71920 ACB/HCP4ADGA Bearing combines chrome steel rings with ceramic balls for enhanced durability.
This hybrid design reduces wear and extends service life compared to traditional steel bearings.
The ceramic balls also contribute to lower friction and higher speed capabilities.

How Is S71920 ACB/HCP4ADGA Bearing Engineered for Reliability?

S71920 ACB/HCP4ADGA Bearing’s P4A tolerance class ensures superior precision and consistency.
The matched set of two bearings allows for back-to-back, face-to-face, or tandem arrangements.
Its robust construction and high-quality materials guarantee long-term reliability in precision applications.

Application

Super Precision Angular Contact Ball Bearings S71920 ACB/HCP4ADGA are commonly used in high-speed machine tools, where their 25° contact angle ensures smooth operation under radial and axial loads.
The ceramic balls and phenolic cage reduce friction, making them ideal for precision applications like CNC spindles.

In aerospace components, S71920 ACB/HCP4ADGA Bearings provide reliable performance due to their P4A tolerance class and universal matching capability.
Their sealed design also helps maintain lubrication in demanding environments.

For robotics, these bearings are a solid choice for articulated arms, thanks to their extra light preload and consistent accuracy.
The grease lubrication ensures long service life even in continuous operation.

Medical imaging devices benefit from S71920 ACB/HCP4ADGA Bearings’ low vibration and high-speed capabilities.
The chrome steel rings and ceramic balls offer durability while maintaining precision.

In electric motors, these bearings handle angular contact loads efficiently, supporting smooth rotation at speeds up to 10,000 rpm.
The metric dimensions make them compatible with a wide range of motor designs.

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