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Super Precision Angular Contact Ball Bearings S71909 ACE/HCP4A

Super Precision Angular Contact Ball Bearings S71909 ACE/HCP4A

The S71909 ACE/HCP4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from high-quality chrome steel. Its compact 12mm width makes it suitable for space-sensitive applications.

This bearing handles radial loads up to 2194 lbf and reaches speeds of 30,000 RPM, thanks to its ceramic balls and phenolic cage. The 25° contact angle provides excellent stability during high-speed operations.

Sealed for protection, it comes pre-lubricated and maintains performance in temperatures from -30°C to 110°C. The P4 tolerance class ensures exceptional precision for demanding tasks.

Ideal for precision machinery like CNC spindles or high-speed motors, where accuracy and speed are crucial. Weighing just 0.11kg, it offers a lightweight solution without compromising durability.

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Product Parameters

  • Part Number S71909 ACE/HCP4A
  • 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 No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 2194 lbf
  • Static Radial Load 1440 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 30000 rpm
  • Weight 0.11 kg
  • Price（$） 389.331
Super Precision Angular Contact Ball Bearings S71909 ACE/HCP4A dimension drawing
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Features

Why Choose S71909 ACE/HCP4A Bearing for Precision Tasks?

S71909 ACE/HCP4A Bearing features a 25° contact angle, ideal for high-precision angular contact applications.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

The phenolic cage maintains ball alignment, enhancing durability even at high speeds up to 30,000 rpm.
With a P4 tolerance class, S71909 ACE/HCP4A Bearing delivers consistent performance in demanding conditions.

Preloaded design reduces vibration, making it suitable for precision machinery.
The sealed construction keeps lubrication intact, extending maintenance intervals.

Application

Common Applications of S71909 ACE/HCP4A Bearing
S71909 ACE/HCP4A Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The ceramic balls and phenolic cage contribute to smooth operation even under demanding conditions.

In robotics, S71909 ACE/HCP4A Bearing provides reliable support for articulated arms, thanks to its low friction and high-speed capabilities. Its sealed design helps keep contaminants out, extending service life in automated environments.

For medical imaging devices, S71909 ACE/HCP4A Bearing’s P4 tolerance class ensures minimal vibration, crucial for clear diagnostic results. The chrome steel rings offer durability, while the ceramic balls reduce heat generation during prolonged use.

In electric motors, S71909 ACE/HCP4A Bearing handles both radial and axial loads efficiently, making it suitable for compact designs. The lubricated construction further enhances its performance in continuous operation scenarios.

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