Super Precision Angular Contact Ball Bearings S71920 ACD/P4ADGB

Super Precision Angular Contact Ball Bearings S71920 ACD/P4ADGB

The S71920 ACD/P4ADGB is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, designed for high-speed applications. Its 25° contact angle and sealed design ensure smooth operation under radial loads up to 20768 lbf.

Made from chrome steel with a phenolic cage, it spins efficiently at speeds up to 10000 RPM. The light preload (Class B) and universal matching allow flexible arrangements like back-to-back or face-to-face setups.

This bearing is ideal for machine tools or spindles where precision and speed are key. It works in temperatures from -30°C to 110°C and comes pre-lubricated with grease for easy maintenance.

Weighing 1.63kg, it’s part of a matched set of two bearings, interchangeable with SKF models. Its P4A tolerance class ensures reliable performance in demanding conditions.

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Product Parameters

  • Part Number S71920 ACD/P4ADGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 20768 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 1.63 kg

Features

Performance Features of S71920 ACD/P4ADGB Bearing

S71920 ACD/P4ADGB Bearing is crafted with chrome steel rings and balls, offering high precision and durability.
Its 25° contact angle ensures efficient handling of both radial and axial loads in demanding applications.

The sealed design and phenolic cage provide reliable performance, reducing the need for frequent maintenance.
With a maximum speed of 10,000 rpm, it balances speed and stability for high-performance machinery.

S71920 ACD/P4ADGB Bearing’s universal matching allows flexible arrangement, enhancing versatility in various setups.
Its light preload and P4A tolerance class ensure smooth operation and long service life.

Application

Common Applications of S71920 ACD/P4ADGB Bearing
S71920 ACD/P4ADGB Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In robotics, S71920 ACD/P4ADGB Bearing provides smooth motion control for articulated arms, thanks to its light preload and universal matching capability. The phenolic cage reduces friction, enhancing efficiency in repetitive tasks.

For aerospace components, S71920 ACD/P4ADGB Bearing handles both radial and axial loads in applications like landing gear systems. Its P4A tolerance class guarantees reliability under demanding operational conditions.

The bearing’s grease lubrication makes it suitable for high-speed applications such as dental drill handpieces, where consistent performance is essential. The chrome steel construction ensures durability in medical settings.

In automotive testing equipment, S71920 ACD/P4ADGB Bearing supports precise measurements due to its stable load characteristics. The metric sizing allows easy integration with European-designed machinery.

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