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Super Precision Angular Contact Ball Bearings S71909 ACE/P4A

Super Precision Angular Contact Ball Bearings S71909 ACE/P4A

The S71909 ACE/P4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes sealed for protection, with matched arrangements and preload options available.

This bearing handles radial loads up to 2194 lbf and reaches speeds of 25,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures smooth operation and durability under demanding conditions.

The sealed design keeps lubrication in and contaminants out, extending service life. Ideal for precision machinery like CNC spindles or high-speed robotics, where accuracy and reliability are crucial.

Weighing just 0.13kg, it’s lightweight yet robust, with a temperature range of -30°C to 110°C. Compliant with P4 tolerance class (ABEC-7), it offers exceptional precision for critical applications.

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Product Parameters

  • Part Number S71909 ACE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2194 lbf
  • Static Radial Load 1440 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 25000 rpm
  • Weight 0.13 kg
  • Price（$） 388.971
Super Precision Angular Contact Ball Bearings S71909 ACE/P4A dimension drawing
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Features

Why Choose S71909 ACE/P4A Bearing for Precision Tasks?

S71909 ACE/P4A Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 2194 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 25,000 rpm, it is ideal for high-speed machinery.

S71909 ACE/P4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its sealed design and lubrication reduce maintenance needs, ensuring long-term reliability.

Application

Common Applications of S71909 ACE/P4A Bearing
S71909 ACE/P4A Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The sealed design keeps contaminants out, extending service life in demanding environments.

In robotics, S71909 ACE/P4A Bearing provides smooth motion control for articulated arms and joints, thanks to its phenolic cage reducing friction. Its P4 tolerance class makes it ideal for applications requiring minimal vibration.

For medical imaging devices, S71909 ACE/P4A Bearing’s chrome steel construction offers reliable performance under consistent loads. The lubricated design ensures quiet operation, crucial for sensitive diagnostic equipment.

Automotive enthusiasts appreciate S71909 ACE/P4A Bearing in performance gearboxes, where its high-speed capability (up to 25,000 rpm) enhances shifting precision. The matched arrangement option further optimises load distribution in compact spaces.

In aerospace applications, S71909 ACE/P4A Bearing handles combined loads in actuator systems, with its temperature range (-30° to 110°C) suiting various operational conditions. The ABEC-7 rating guarantees precision even under extreme conditions.

Q&A

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