Super Precision Angular Contact Ball Bearings 71908 ACE/P4A

Super Precision Angular Contact Ball Bearings 71908 ACE/P4A

The 71908 ACE/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes preloaded for better performance.

With a dynamic radial load capacity of 2106 lbf, it spins smoothly at speeds up to 44,000 RPM. The phenolic cage ensures quiet operation and long service life.

Its open design allows easy lubrication, making maintenance straightforward. The bearing operates reliably in temperatures from -30°C to 110°C.

Ideal for high-precision applications like machine tool spindles or medical equipment. Weighing just 0.1kg, it’s lightweight yet robust for its size. Compliant with P4 tolerance class for exceptional accuracy.

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Product Parameters

  • Part Number 71908 ACE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 19
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2106 lbf
  • Static Radial Load 1282 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 44000 rpm
  • Weight 0.1 kg
  • Price($) 79.884

Features

Why Choose 71908 ACE/P4A Bearing for Precision Tasks?

71908 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 2106 lbf.

The phenolic cage maintains ball alignment, reducing friction and noise during high-speed rotation.
With a maximum speed of 44,000 rpm, it delivers reliable performance in demanding conditions.

71908 ACE/P4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its P4 tolerance class (ABEC-7) guarantees exceptional precision for critical applications.

The open design allows for easy lubrication, enhancing longevity and reducing maintenance needs.
Weighing just 0.1 kg, it combines performance with lightweight convenience.

Application

Industrial Uses of 71908 ACE/P4A Bearing
This bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure smooth operation. The phenolic cage helps reduce friction, making it suitable for continuous use.

Where Is 71908 ACE/P4A Bearing Used?
You’ll often find it in automotive applications like electric motors and gearboxes, where its 25° contact angle handles combined loads effectively. Its metric sizing makes it a versatile choice for various vehicle models.

Perfect Fit for Automation: 71908 ACE/P4A Bearing
In robotic arms and automated systems, this bearing’s high-speed capability and P4 tolerance class deliver reliable performance. The chrome steel construction ensures durability in demanding environments.

Medical vs Industrial: Where 71908 ACE/P4A Bearing Excels
While it’s great for industrial machinery, it also shines in medical devices like dental drills, where precision is key. The lubricated design keeps it running quietly and efficiently.

Key Fields for 71908 ACE/P4A Bearing
From CNC machines to aerospace components, this bearing’s high dynamic load capacity makes it a trusted choice. Its open seal type allows for easy maintenance in heavy-duty applications.

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