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Super Precision Angular Contact Ball Bearings S71905 ACEGA/P4A

Super Precision Angular Contact Ball Bearings S71905 ACEGA/P4A

The S71905 ACEGA/P4A is a super precision angular contact ball bearing with a 25mm bore and 42mm outer diameter, crafted from durable chrome steel. Its compact 9mm width makes it suitable for tight spaces while maintaining high performance.

With a 25° contact angle and extra light preload, it handles radial loads up to 1141 lbf and spins smoothly at speeds up to 83,000 RPM. The sealed design keeps grease in and contaminants out for reliable operation.

This bearing is ideal for high-precision applications like machine tool spindles or dental equipment, where accuracy and speed are crucial. It can be paired in back-to-back, face-to-face, or tandem arrangements for added versatility.

Weighing just 0.042kg, it’s lightweight yet robust, and meets P4A tolerance standards for exceptional precision. Compliant with standard temperature ranges from -30°C to 110°C.

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Product Parameters

  • Part Number S71905 ACEGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 25 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 16
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1141 lbf
  • Static Radial Load 596 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 83000 rpm
  • Weight 0.042 kg
Super Precision Angular Contact Ball Bearings S71905 ACEGA/P4A dimension drawing
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Features

Performance Features of S71905 ACEGA/P4A Bearing

S71905 ACEGA/P4A Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 25° contact angle provides excellent angular contact performance for various applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 83,000 rpm, it delivers reliable performance in high-speed scenarios.

S71905 ACEGA/P4A Bearing’s sealed design keeps lubrication intact, reducing maintenance needs.
Its P4A tolerance class ensures consistent precision, making it ideal for demanding tasks.

The bearing operates efficiently within a temperature range of -30°C to 110°C.
Its dynamic radial load capacity of 1141 lbf ensures robust performance under stress.

Application

Ideal for Precision: S71905 ACEGA/P4A Bearing
S71905 ACEGA/P4A Bearing is commonly used in high-speed machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, extending service life in demanding industrial settings.

In automotive applications, S71905 ACEGA/P4A Bearing supports electric motor shafts, providing smooth operation at high RPMs. Its extra-light preload makes it suitable for precision gear systems in performance vehicles.

For medical imaging devices, S71905 ACEGA/P4A Bearing’s phenolic cage and chrome steel components offer reliable performance in sensitive equipment. The P4A tolerance class ensures consistent accuracy for diagnostic machinery.

Automation systems benefit from S71905 ACEGA/P4A Bearing’s ability to handle combined loads in robotic arms. Its compact size and high-speed capabilities make it a practical choice for space-constrained applications.

In consumer electronics, S71905 ACEGA/P4A Bearing is found in high-end printers, where its grease lubrication reduces noise during operation. The 25° contact angle provides stability for moving parts in compact devices.

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