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Super Precision Angular Contact Ball Bearings S71909 ACD/P4A

Super Precision Angular Contact Ball Bearings S71909 ACD/P4A

The S71909 ACD/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 pre-lubricated for smooth operation.

This bearing handles radial loads up to 2790 lbf and can reach speeds of 17000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability while maintaining low friction.

The sealed design protects against contaminants, extending service life in demanding environments. With a P4 tolerance class, it offers exceptional precision for machinery requiring tight tolerances.

Ideal for precision equipment like spindles or measuring devices, it operates reliably in temperatures from -30°C to 110°C. Weighing just 0.13kg, it combines lightweight design with robust performance.

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Product Parameters

  • Part Number S71909 ACD/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 23
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2790 lbf
  • Static Radial Load 2025 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 17000 rpm
  • Weight 0.13 kg
  • Price（$） 388.971
Super Precision Angular Contact Ball Bearings S71909 ACD/P4A dimension drawing
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Features

Why Choose S71909 ACD/P4A Bearing for Precision Tasks?

S71909 ACD/P4A Bearing features a 25° contact angle, optimising load distribution for high-precision applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.
With a dynamic radial load capacity of 2790 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees exceptional accuracy for critical operations.

How Is S71909 ACD/P4A Bearing Engineered for Reliability?

S71909 ACD/P4A Bearing’s sealed design protects against contaminants, extending its service life.
The chrome steel construction resists wear, maintaining performance even at high speeds up to 17,000 rpm.
Its preload availability ensures minimal vibration and precise operation.
The lubricated design further enhances smoothness and reduces maintenance needs.

Built for Reliability: S71909 ACD/P4A Bearing

S71909 ACD/P4A Bearing is crafted for high-speed applications, thanks to its balanced design and quality materials.
The phenolic cage not only reduces weight but also improves thermal stability.
With a temperature range of -30° to 110°C, it performs consistently in varied environments.
Its static radial load capacity of 2025 lbf adds to its dependability in precision setups.

Steel vs Ceramic Bearings: Strengths of S71909 ACD/P4A Bearing

S71909 ACD/P4A Bearing uses chrome steel for both rings and balls, offering a cost-effective yet durable solution.
The material choice ensures high load capacity and resistance to wear under angular contact forces.
Unlike ceramic options, it provides excellent performance without the higher cost.
Its sealed design also makes it suitable for environments where contamination is a concern.

Application

Key Fields for S71909 ACD/P4A Bearing
S71909 ACD/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, S71909 ACD/P4A Bearing supports articulated arms, providing smooth movement thanks to its phenolic cage and chrome steel balls. Its P4 tolerance class makes it suitable for applications demanding minimal vibration.

For medical imaging devices, S71909 ACD/P4A Bearing’s lubricated design ensures quiet operation, crucial for sensitive diagnostic equipment. The 25° contact angle also helps manage combined radial and axial loads effectively.

In automotive steering systems, S71909 ACD/P4A Bearing offers reliable performance under angular loads. Its metric sizing and compatibility with SKF models make it a versatile choice for various vehicle designs.

Q&A

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