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Super Precision Angular Contact Ball Bearings S71912 ACD/P4AQBCB

Super Precision Angular Contact Ball Bearings S71912 ACD/P4AQBCB

The S71912 ACD/P4AQBCB is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes sealed for protection, with a matched set of four bearings for balanced performance.

This bearing handles radial loads up to 11115 lbf and spins smoothly at speeds up to 36000 RPM. Its phenolic cage ensures quiet operation, while the light preload (Class B) provides stability for high-precision applications.

The sealed design keeps grease in and contaminants out, reducing maintenance needs. It operates efficiently in temperatures from -30°C to 110°C, making it suitable for demanding environments.

Ideal for machine tools, spindles, or other high-speed applications where precision and reliability are key. Weighing 0.78kg, it’s a robust choice for its size, with P4A tolerance class ensuring consistent performance. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number S71912 ACD/P4AQBCB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 52 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 11115 lbf
  • Static Radial Load 13162 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 36000 rpm
  • Weight 0.78 kg
Super Precision Angular Contact Ball Bearings S71912 ACD/P4AQBCB dimension drawing
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Features

How Is S71912 ACD/P4AQBCB Bearing Engineered for Reliability?

S71912 ACD/P4AQBCB Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
Its chrome steel rings and balls provide durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 11115 lbf, it delivers reliable performance in demanding applications.
The sealed design and grease lubrication reduce maintenance needs, extending its service life.

S71912 ACD/P4AQBCB Bearing can operate at speeds up to 36,000 rpm, making it suitable for precision tasks.
Its P4A tolerance class ensures consistent performance, even under heavy loads.

Application

Industrial Uses of S71912 ACD/P4AQBCB Bearing
S71912 ACD/P4AQBCB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

How Does S71912 ACD/P4AQBCB Bearing Improve Performance?
In automation systems, S71912 ACD/P4AQBCB Bearing reduces friction in robotic arms, enhancing movement precision. Its phenolic cage offers durability while keeping weight low for faster operation.

Built for Heavy-Duty Use: S71912 ACD/P4AQBCB Bearing
S71912 ACD/P4AQBCB Bearing handles radial loads efficiently in industrial gearboxes, making it suitable for continuous operation. The light preload ensures smooth performance without excessive wear.

Automotive vs Aerospace: Applications of S71912 ACD/P4AQBCB Bearing
In automotive applications, S71912 ACD/P4AQBCB Bearing supports transmission systems with reliable angular load capacity. For aerospace, its P4A tolerance meets strict precision requirements in avionics equipment.

Perfect Fit for Automation: S71912 ACD/P4AQBCB Bearing
S71912 ACD/P4AQBCB Bearing works well in CNC machinery, where consistent speed and accuracy are essential. The matched set arrangement provides balanced load distribution for longer service life.

Q&A

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