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Super Precision Angular Contact Ball Bearings S7209 ACDGC/P4A

Super Precision Angular Contact Ball Bearings S7209 ACDGC/P4A

The S7209 ACDGC/P4A is a super precision angular contact ball bearing with a 45mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 9225 lbf and spins smoothly at speeds up to 46,000 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The 25° contact angle provides stable support for combined loads.

This bearing is ideal for high-precision applications like machine tool spindles or robotics, where accuracy is key. It operates in temperatures from -30°C to 110°C and comes pre-greased for easy installation.

Weighing just 0.42kg, it’s lightweight yet robust. The P4A tolerance class ensures tight precision, and it can be paired in back-to-back, face-to-face, or tandem arrangements for versatile use.

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Product Parameters

  • Part Number S7209 ACDGC/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 19 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 14
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 9225 lbf
  • Static Radial Load 6750 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.42 kg
Super Precision Angular Contact Ball Bearings S7209 ACDGC/P4A dimension drawing
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Features

Performance Features of S7209 ACDGC/P4A Bearing

S7209 ACDGC/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls provide strength, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 9225 lbf, it handles demanding conditions reliably.

The P4A tolerance class guarantees precision, making it suitable for high-performance machinery.

How Does S7209 ACDGC/P4A Bearing Achieve High-Speed Performance?

S7209 ACDGC/P4A Bearing’s grease lubrication and phenolic cage reduce friction, enabling speeds up to 46,000 rpm.

The chrome steel construction maintains durability even under high dynamic radial loads.

Its sealed design protects against contaminants, ensuring consistent performance.

With a temperature range of -30°C to 110°C, it operates reliably in varied environments.

Engineered for Precision: S7209 ACDGC/P4A Bearing

S7209 ACDGC/P4A Bearing’s P4A tolerance class ensures exceptional accuracy for precision applications.

The moderate preload (Class C) enhances stability, reducing vibration during operation.

Its universal matching capability allows flexible arrangements like back-to-back or face-to-face.

With 14 high-quality chrome steel balls, it delivers smooth and reliable performance.

Steel vs Ceramic Bearings: Strengths of S7209 ACDGC/P4A Bearing

S7209 ACDGC/P4A Bearing’s chrome steel construction offers a balance of strength and cost-effectiveness.

The phenolic cage provides quiet operation, ideal for high-speed applications.

With a static radial load of 6750 lbf, it handles heavy loads without compromising precision.

Its sealed design and grease lubrication reduce maintenance needs, extending service life.

Application

Super Precision Angular Contact Ball Bearings S7209 ACDGC/P4A is commonly used in high-speed machine tools, where its 25° contact angle ensures accurate spindle rotation. The sealed design helps maintain grease lubrication, reducing maintenance needs in demanding industrial environments.

In automotive applications, S7209 ACDGC/P4A supports components like wheel hubs and transmissions, where its moderate preload enhances stability. The chrome steel construction provides durability under both radial and angular loads.

For robotics, S7209 ACDGC/P4A’s phenolic cage offers smooth operation in articulated arms and precision joints. Its P4A tolerance class makes it suitable for tasks requiring minimal vibration and high positional accuracy.

In medical imaging devices, S7209 ACDGC/P4A’s high-speed capability ensures quiet and reliable performance. The temperature range of -30°C to 110°C allows it to function in various clinical settings.

Q&A

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