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Super Precision Angular Contact Ball Bearings S71909 ACB/P4A

Super Precision Angular Contact Ball Bearings S71909 ACB/P4A

The S71909 ACB/P4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 1580 lbf and spins smoothly at speeds up to 24,000 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet operation. The 25° contact angle provides excellent stability for angular loads.

This bearing is ideal for high-speed applications like machine tool spindles or precision instruments. Compliant with P4 tolerance standards, it offers reliable performance in temperatures from -30°C to 110°C.

Weighing just 0.14kg, it’s lightweight yet robust. Available as a matched set for paired mounting, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number S71909 ACB/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 4.762 mm
  • Ball Qty 27
  • 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 1580 lbf
  • Static Radial Load 1238 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 24000 rpm
  • Weight 0.14 kg
  • Price（$） 389.232
Super Precision Angular Contact Ball Bearings S71909 ACB/P4A dimension drawing
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Features

Why Choose S71909 ACB/P4A Bearing for Precision Tasks?

S71909 ACB/P4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its P4 tolerance class ensures high accuracy, making it suitable for demanding applications.

The chrome steel rings and balls provide durability, while the phenolic cage reduces friction and noise.
With a maximum speed of 24,000 rpm, it delivers reliable performance in high-speed environments.

S71909 ACB/P4A Bearing comes pre-lubricated, reducing maintenance needs and ensuring smooth operation.
Its sealed design protects against contaminants, extending service life in various conditions.

Application

Key Fields for S71909 ACB/P4A Bearing
S71909 ACB/P4A 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 S71909 ACB/P4A Bearing Support High-Speed Operations?
With a maximum speed of 24,000 rpm, S71909 ACB/P4A Bearing is ideal for applications like CNC machining centres. Its phenolic cage reduces friction, enhancing efficiency during prolonged use.

Perfect Fit for Automation: S71909 ACB/P4A Bearing
In robotic arms, S71909 ACB/P4A Bearing provides smooth motion control due to its P4 tolerance class. The chrome steel rings offer durability, even in repetitive, high-load scenarios.

Automotive vs Aerospace: Applications of S71909 ACB/P4A Bearing
S71909 ACB/P4A Bearing suits automotive transmissions, handling radial and axial loads efficiently. In aerospace, its precision and reliability make it a choice for instrumentation and control systems.

Q&A

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