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Super Precision Angular Contact Ball Bearings S71911 ACB/HCP4ADGA

Super Precision Angular Contact Ball Bearings S71911 ACB/HCP4ADGA

The S71911 ACB/HCP4ADGA is a super precision angular contact ball bearing, measuring 55mm by 80mm by 26mm. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

It handles radial loads up to 3442 lbf and spins at speeds up to 46,000 RPM, thanks to its phenolic cage and grease lubrication. The sealed design keeps contaminants out for longer life.

With a 25° contact angle and P4A tolerance class, it provides high accuracy for demanding applications. The universal matching allows flexible arrangements like back-to-back or face-to-face.

Ideal for precision machinery like spindles or CNC tools, it works in temperatures from -30°C to 110°C. Weighing 0.36kg, it’s lightweight yet robust for its size. Comes as a matched set of two bearings for balanced performance.

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Product Parameters

  • Part Number S71911 ACB/HCP4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 28
  • 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 3442 lbf
  • Static Radial Load 3442 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.36 kg
  • Price（$） 199.872
Super Precision Angular Contact Ball Bearings S71911 ACB/HCP4ADGA dimension drawing
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Features

Performance Features of S71911 ACB/HCP4ADGA Bearing

S71911 ACB/HCP4ADGA Bearing is designed with a 25° contact angle, offering precise angular contact performance.

Its ceramic balls and chrome steel rings ensure smooth operation, even at high speeds up to 46,000 rpm.

The phenolic cage maintains ball alignment, reducing friction and wear.

With universal matching capability, it supports various configurations like back-to-back or face-to-face arrangements.

How Does S71911 ACB/HCP4ADGA Bearing Reduce Friction?

S71911 ACB/HCP4ADGA Bearing uses ceramic balls to minimise friction, enhancing efficiency in high-speed applications.

The grease lubrication ensures consistent performance, reducing the need for frequent maintenance.

Its precision P4A tolerance class guarantees reliable operation under dynamic radial loads up to 3442 lbf.

The sealed design protects against contaminants, further improving longevity.

Engineered for Precision: S71911 ACB/HCP4ADGA Bearing

S71911 ACB/HCP4ADGA Bearing is built for super precision tasks, thanks to its P4A tolerance class and ceramic balls.

The extra light preload ensures smooth rotation, ideal for applications requiring high accuracy.

With a temperature range of -30°C to 110°C, it performs reliably in varying conditions.

The matched set of two bearings offers flexibility for different mounting configurations.

Application

Super Precision Angular Contact Ball Bearings S71911 ACB/HCP4ADGA are commonly used in high-speed machine tools, where their ceramic balls and phenolic cage reduce friction and heat buildup. The sealed design keeps contaminants out, ensuring long-lasting performance in demanding industrial environments.

In automotive applications, S71911 ACB/HCP4ADGA supports precision components like electric motor shafts, thanks to its P4A tolerance class and universal matching capability. The extra-light preload also helps maintain smooth operation under angular loads.

For medical imaging devices, S71911 ACB/HCP4ADGA’s chrome steel rings and ceramic balls provide reliable, low-noise rotation. The grease lubrication ensures consistent performance in sensitive equipment where precision is key.

In robotics, S71911 ACB/HCP4ADGA excels in articulated arms and joints due to its high-speed capability and matched arrangement options. The 25° contact angle offers optimal load distribution for dynamic movements.

For aerospace systems, S71911 ACB/HCP4ADGA’s lightweight design and temperature resistance make it suitable for auxiliary equipment. The phenolic cage further enhances durability in variable operating conditions.

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