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Super Precision Angular Contact Ball Bearings S71911 ACDGA/P4A

Super Precision Angular Contact Ball Bearings S71911 ACDGA/P4A

The S71911 ACDGA/P4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, designed for high-speed applications. It features a 25° contact angle and is sealed for protection against contaminants.

Made from chrome steel with a phenolic cage, it handles dynamic radial loads up to 4095 lbf and spins smoothly at speeds up to 34,000 RPM. The extra light preload ensures minimal friction during operation.

Its sealed design reduces maintenance needs, while the P4A tolerance class guarantees consistent performance. The bearing operates in temperatures from -30°C to 110°C and comes pre-lubricated with grease.

Ideal for precision machinery like spindles or CNC equipment, it can be matched in sets of four for back-to-back, face-to-face, or tandem arrangements. Weighing just 0.18kg, it’s lightweight yet durable for its size.

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Product Parameters

  • Part Number S71911 ACDGA/P4A
  • 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 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4095 lbf
  • Static Radial Load 3082 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.18 kg
Super Precision Angular Contact Ball Bearings S71911 ACDGA/P4A dimension drawing
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Features

Performance Features of S71911 ACDGA/P4A Bearing

S71911 ACDGA/P4A Bearing is crafted with chrome steel rings and balls, ensuring durability and high performance.

Its 25° contact angle provides excellent radial and axial load capacity, making it suitable for precision applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.

With a maximum speed of 34,000 rpm, it delivers reliable performance in high-speed scenarios.

Application

Key Fields for S71911 ACDGA/P4A Bearing
S71911 ACDGA/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In robotics, S71911 ACDGA/P4A Bearing provides smooth motion control for articulated arms, thanks to its extra-light preload and phenolic cage. Its compact size makes it ideal for space-constrained applications.

For medical imaging devices, S71911 ACDGA/P4A Bearing offers reliable operation with minimal vibration, crucial for clear diagnostic results. The grease lubrication ensures quiet performance in sensitive environments.

Automotive applications like electric vehicle motors benefit from S71911 ACDGA/P4A Bearing’s high-speed capabilities and angular load handling. The P4A tolerance class guarantees consistent performance under demanding conditions.

In 3D printers, S71911 ACDGA/P4A Bearing enables precise linear motion for print heads, contributing to detailed output. Its chrome steel construction ensures durability even with frequent use.

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