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Super Precision Angular Contact Ball Bearings S71907 ACD/P4AQBCC

Super Precision Angular Contact Ball Bearings S71907 ACD/P4AQBCC

The S71907 ACD/P4AQBCC is a super precision angular contact ball bearing with a 35mm bore and 55mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes sealed for protection, with a moderate preload for balanced performance.

This bearing handles radial loads up to 5445 lbf and spins smoothly at high speeds, reaching up to 56,000 RPM. Its phenolic cage ensures quiet operation and long service life, even in demanding conditions.

The set includes four matched bearings (QBC arrangement), ideal for applications requiring precise alignment. It works well in temperatures from -30°C to 110°C and is lubricated with grease for easy maintenance.

Weighing just 0.31kg, it’s a reliable choice for high-precision machinery like spindles or CNC equipment. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number S71907 ACD/P4AQBCC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 35 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 55 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 40 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 5445 lbf
  • Static Radial Load 5512 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.31 kg
Super Precision Angular Contact Ball Bearings S71907 ACD/P4AQBCC dimension drawing
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Features

Performance Features of S71907 ACD/P4AQBCC Bearing

S71907 ACD/P4AQBCC Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

The matched arrangement of four bearings enhances stability and performance in high-speed operations.
With a maximum speed of 56,000 rpm, it delivers reliable efficiency under demanding conditions.

S71907 ACD/P4AQBCC Bearing’s sealed design keeps contaminants out, extending its service life.
Its moderate preload (Class C) ensures smooth operation without excessive wear.

Application

Common Applications of S71907 ACD/P4AQBCC Bearing
S71907 ACD/P4AQBCC Bearing is widely used in high-speed machine tools, where its precision and moderate preload ensure smooth operation. The sealed design keeps contaminants out, extending the bearing’s lifespan in demanding environments.

In automotive applications, S71907 ACD/P4AQBCC Bearing supports components like electric motors and gearboxes, thanks to its angular contact design. The chrome steel construction provides durability under heavy loads and high speeds.

For robotics, S71907 ACD/P4AQBCC Bearing offers reliable performance in robotic arms and automated systems. Its phenolic cage reduces friction, making it ideal for repetitive, high-precision movements.

In medical imaging devices, S71907 ACD/P4AQBCC Bearing’s low noise and high-speed capabilities are crucial. The P4A tolerance class ensures consistent performance in sensitive equipment.

Household appliances like high-end fans benefit from S71907 ACD/P4AQBCC Bearing’s quiet operation. The grease lubrication reduces maintenance needs, making it a practical choice for long-term use.

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