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Super Precision Angular Contact Ball Bearings S71909 ACDGB/P4A

Super Precision Angular Contact Ball Bearings S71909 ACDGB/P4A

The S71909 ACDGB/P4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes sealed for protection, with a phenolic cage for smooth operation.

This bearing handles radial loads up to 2790 lbf and spins efficiently at speeds up to 41,000 RPM. Its light preload (Class B) ensures stable performance, while the grease lubrication simplifies maintenance.

The P4A tolerance class guarantees high precision, making it suitable for demanding applications. It’s versatile, working in temperatures from -30°C to 110°C and available in matched sets for back-to-back, face-to-face, or tandem arrangements.

Ideal for precision machinery like spindles or CNC equipment, this lightweight bearing (0.13kg) is interchangeable with SKF models for easy replacements.

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Product Parameters

  • Part Number S71909 ACDGB/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 23
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 2790 lbf
  • Static Radial Load 2025 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.13 kg
  • Price（$） 49.365
Super Precision Angular Contact Ball Bearings S71909 ACDGB/P4A dimension drawing
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Features

Performance Features of S71909 ACDGB/P4A Bearing

S71909 ACDGB/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls ensure durability and resistance to wear under dynamic radial loads up to 2790 lbf.

With a maximum speed of 41,000 rpm, S71909 ACDGB/P4A Bearing delivers smooth and efficient performance.
The phenolic cage maintains ball alignment, reducing friction and extending operational life.

S71909 ACDGB/P4A Bearing operates reliably in temperatures ranging from -30°C to 110°C.
Its sealed design and grease lubrication minimise maintenance requirements, ensuring hassle-free use.

The P4A tolerance class guarantees high precision, making it suitable for demanding applications.
Its universal matching capability allows flexible configurations like back-to-back or face-to-face arrangements.

Application

Where Is S71909 ACDGB/P4A Bearing Used?
S71909 ACDGB/P4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The sealed construction helps keep out contaminants, making it reliable in demanding environments.

In robotics, S71909 ACDGB/P4A Bearing supports smooth movement in articulated arms and joints. Its light preload and phenolic cage contribute to low friction and quiet operation, ideal for automated systems.

For medical imaging devices, S71909 ACDGB/P4A Bearing’s chrome steel components provide durability and consistent performance. The P4A tolerance class ensures the precision needed for sensitive diagnostic equipment.

In electric motors, S71909 ACDGB/P4A Bearing handles both radial and axial loads efficiently. Its grease lubrication and high-speed capability make it a solid choice for long-lasting motor performance.

Q&A

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