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Super Precision Angular Contact Ball Bearings 71906 ACE/P4A

Super Precision Angular Contact Ball Bearings 71906 ACE/P4A

The 71906 ACE/P4A is a super precision angular contact ball bearing with a 30mm bore and 47mm outer diameter, crafted from high-quality chrome steel. Its compact 9mm width makes it suitable for space-sensitive applications while handling radial loads up to 1215 lbf.

With a 25° contact angle and P4 tolerance class, it offers smooth operation at speeds up to 58,000 RPM. The phenolic cage ensures quiet performance and durability under high-speed conditions.

This open-design bearing comes pre-lubricated and operates in temperatures from -30°C to 110°C. Its universal matching capability allows for flexible arrangement in precision setups.

Weighing just 50 grams, it’s ideal for high-precision machinery like spindles or dental equipment where accuracy and speed are crucial. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71906 ACE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 30 mm
  • Bore Dia Tolerance -0.005mm to 0
  • Outer Dia 47 mm
  • Outer Dia Tolerance -0.006mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 18
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1215 lbf
  • Static Radial Load 686 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 58000 rpm
  • Weight 0.05 kg
  • Price（$） 216.72
Super Precision Angular Contact Ball Bearings 71906 ACE/P4A dimension drawing
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Features

Performance Features of 71906 ACE/P4A Bearing

71906 ACE/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and high-speed performance.

With a dynamic radial load capacity of 1215 lbf, it handles demanding conditions efficiently.
The phenolic cage maintains ball alignment, reducing friction and wear.

71906 ACE/P4A Bearing operates at speeds up to 58,000 rpm, making it suitable for precision tasks.
Its P4 tolerance class ensures consistent performance in high-accuracy applications.

The open design allows for easy lubrication, extending service life.
Its compact size (30 mm×47 mm×9 mm) makes it ideal for space-constrained installations.

Application

Where Is 71906 ACE/P4A Bearing Used?
71906 ACE/P4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The open seal type allows for easy lubrication, extending its lifespan in demanding conditions.

In robotics, 71906 ACE/P4A Bearing supports smooth movement in articulated arms, thanks to its phenolic cage reducing friction. Its 25° contact angle provides stability during dynamic operations.

For medical imaging devices, 71906 ACE/P4A Bearing’s P4 tolerance class guarantees minimal vibration, crucial for clear results. The chrome steel construction also resists wear in sterile environments.

Automotive applications like electric motor shafts benefit from 71906 ACE/P4A Bearing’s high-speed capability. Its matched arrangement option ensures consistent performance in paired installations.

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