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Super Precision Angular Contact Ball Bearings S71908 ACB/P4ADBB

Super Precision Angular Contact Ball Bearings S71908 ACB/P4ADBB

The S71908 ACB/P4ADBB is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. Its sealed design and grease lubrication ensure smooth operation with minimal maintenance.

With a 25° contact angle and light preload, it handles both radial and thrust loads efficiently, supporting speeds up to 41,000 RPM. The phenolic cage adds durability while keeping the weight low at just 0.25kg.

This matched set of two bearings (DB arrangement) offers stable performance for high-precision applications. Ideal for machine tools or spindle drives where accuracy and reliability are key.

Operating smoothly from -30°C to 110°C, it’s interchangeable with SKF bearings for easy replacements. Compliant with P4A tolerance standards for consistent performance.

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Product Parameters

  • Part Number S71908 ACB/P4ADBB
  • 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 3.969 mm
  • Ball Qty 28
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1843 lbf
  • Static Radial Load 1755 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.25 kg
Super Precision Angular Contact Ball Bearings S71908 ACB/P4ADBB dimension drawing
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Features

Performance Features of S71908 ACB/P4ADBB Bearing

S71908 ACB/P4ADBB Bearing is crafted with a 25° contact angle, ideal for handling combined radial and axial loads.
Its matched arrangement of two bearings ensures stability and precision in high-speed applications.

The chrome steel rings and balls provide durability, while the phenolic cage reduces friction.
With a maximum speed of 41,000 rpm, it delivers reliable performance in demanding conditions.

S71908 ACB/P4ADBB Bearing’s sealed design keeps contaminants out, extending its service life.
Its light preload class B ensures smooth operation without excessive resistance.

The grease lubrication minimises maintenance needs, making it a practical choice.
Its P4A tolerance class guarantees high precision for critical applications.

Application

Industrial Uses of S71908 ACB/P4ADBB Bearing
S71908 ACB/P4ADBB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate alignment under radial and axial loads.
The sealed construction helps maintain lubrication, making it suitable for environments with minimal maintenance access.

Where Is S71908 ACB/P4ADBB Bearing Used?
In robotics, S71908 ACB/P4ADBB Bearing provides smooth motion control for articulated arms and joints, thanks to its light preload and matched arrangement.
The phenolic cage reduces friction, enhancing performance in high-speed applications.

Optimized for Performance: S71908 ACB/P4ADBB Bearing
For automotive applications like electric motor shafts, S71908 ACB/P4ADBB Bearing offers reliable support with its chrome steel construction.
Its grease lubrication ensures long service life even under continuous operation.

Medical vs Industrial: Where S71908 ACB/P4ADBB Bearing Excels
In medical imaging devices, S71908 ACB/P4ADBB Bearing delivers quiet and precise rotation, critical for diagnostic accuracy.
Industrial CNC machines benefit from its high-speed capability and tolerance class P4A for consistent performance.

Practical Applications of S71908 ACB/P4ADBB Bearing
S71908 ACB/P4ADBB Bearing is ideal for 3D printers, where its matched set configuration ensures smooth linear motion.
The temperature range of -30°C to 110°C makes it versatile for various operating conditions.

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