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Super Precision Angular Contact Ball Bearings S71909 ACEGA/P4A

Super Precision Angular Contact Ball Bearings S71909 ACEGA/P4A

The S71909 ACEGA/P4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. Its compact 12mm 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 2194 lbf and spins smoothly at speeds up to 41,000 RPM. The sealed design keeps grease in place, reducing maintenance needs.

The phenolic cage ensures quiet operation and long service life. This bearing works reliably in temperatures from -30°C to 110°C and comes in matched sets for universal mounting options.

Ideal for high-precision applications like machine tool spindles or robotics, where accuracy and speed are crucial. Weighing just 0.13kg, it offers excellent performance without adding bulk.

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Product Parameters

  • Part Number S71909 ACEGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 12 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 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 2194 lbf
  • Static Radial Load 1440 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.13 kg
Super Precision Angular Contact Ball Bearings S71909 ACEGA/P4A dimension drawing
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Features

Performance Features of S71909 ACEGA/P4A Bearing

S71909 ACEGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation.

The bearing handles dynamic radial loads up to 2194 lbf, making it suitable for high-performance tasks.
With a maximum speed of 41,000 rpm, it delivers efficiency without compromising reliability.

S71909 ACEGA/P4A Bearing operates in temperatures from -30°C to 110°C, adapting to various environments.
Its sealed design and grease lubrication reduce maintenance needs, ensuring long service life.

The P4A tolerance class guarantees precision, ideal for applications requiring high accuracy.
Its universal matching capability allows flexible arrangement options like back-to-back or tandem setups.

Application

Super Precision Angular Contact Ball Bearings S71909 ACEGA/P4A is commonly used in high-speed machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The sealed design keeps contaminants out, extending service life in demanding workshop conditions.

In robotics, S71909 ACEGA/P4A provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction during rapid directional changes. The P4A tolerance class guarantees consistent precision for repetitive tasks.

For medical imaging devices like CT scanners, S71909 ACEGA/P4A’s grease lubrication and chrome steel construction deliver quiet operation essential for sensitive environments. Its extra light preload minimises vibration during delicate procedures.

Automotive electric motors benefit from S71909 ACEGA/P4A’s ability to handle combined loads at speeds up to 41,000 rpm. The universal matching option allows flexible mounting configurations in compact EV drivetrains.

In aerospace applications, S71909 ACEGA/P4A’s temperature stability (-30°C to 110°C) ensures reliable performance in avionics cooling systems. The matched bearing sets simplify maintenance in hard-to-access aircraft components.

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