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Super Precision Angular Contact Ball Bearings S71908 ACD/HCP4ADBC

Super Precision Angular Contact Ball Bearings S71908 ACD/HCP4ADBC

The S71908 ACD/HCP4ADBC is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, designed for high-speed applications. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 4275 lbf.

The sealed design keeps grease in and contaminants out, while the phenolic cage reduces friction. This matched pair of bearings comes with a moderate preload (Class C) for stable performance at speeds up to 41,000 RPM.

Ideal for machine tools or precision equipment, it handles temperatures from -30°C to 110°C. The P4A tolerance class guarantees exceptional accuracy. Weighing just 0.2kg, this set offers reliability without adding bulk.

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Product Parameters

  • Part Number S71908 ACD/HCP4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 4275 lbf
  • Static Radial Load 3600 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.2 kg
Super Precision Angular Contact Ball Bearings S71908 ACD/HCP4ADBC dimension drawing
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Features

Why Choose S71908 ACD/HCP4ADBC Bearing for Precision Tasks?

S71908 ACD/HCP4ADBC Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its ceramic balls and phenolic cage reduce friction, ensuring smooth operation even at high speeds.

The sealed design protects against contaminants, making it suitable for demanding environments.
With a maximum speed of 41,000 rpm, it delivers reliable performance in high-speed applications.

S71908 ACD/HCP4ADBC Bearing’s chrome steel rings provide durability, while the P4A tolerance class ensures accuracy.
Its moderate preload (Class C) enhances stability, making it perfect for precision machinery.

The matched arrangement of two bearings (DB) offers balanced load distribution.
This design reduces vibration and noise, improving overall system efficiency.

S71908 ACD/HCP4ADBC Bearing operates within a temperature range of -30°C to 110°C.
Its grease lubrication ensures long service life with minimal maintenance.

Application

Super Precision Angular Contact Ball Bearings S71908 ACD/HCP4ADBC are commonly used in high-speed machine tools, where their ceramic balls and phenolic cage reduce friction and heat buildup. The sealed design keeps contaminants out, ensuring long-lasting performance in demanding environments.

In robotics, S71908 ACD/HCP4ADBC Bearings provide smooth motion control for articulated arms, thanks to their moderate preload and angular contact design. The matched arrangement enhances stability, making them ideal for precision tasks.

For aerospace applications, S71908 ACD/HCP4ADBC Bearings handle both radial and axial loads in components like gyroscopes and actuators. Their P4A tolerance class ensures consistent accuracy even under extreme conditions.

In medical imaging devices, S71908 ACD/HCP4ADBC Bearings offer quiet operation and reliability, crucial for sensitive diagnostic equipment. The grease lubrication minimises maintenance while extending service life.

Automotive electric motors benefit from S71908 ACD/HCP4ADBC Bearings’ high-speed capability and ceramic ball construction, reducing energy loss and wear. Their compact size fits seamlessly into modern EV designs.

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