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Super Precision Angular Contact Ball Bearings S71909 CD/P4AQBCC

Super Precision Angular Contact Ball Bearings S71909 CD/P4AQBCC

The S71909 CD/P4AQBCC is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7605 lbf and operates smoothly at high 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 15° contact angle and moderate preload (Class C) provide excellent stability for precise applications.

This bearing comes in a matched set of four (QBC arrangement), ideal for spindle or machine tool use where accuracy is key. It works in temperatures from -30°C to 110°C.

Weighing 0.54kg, it’s a robust choice for high-speed, high-precision scenarios. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number S71909 CD/P4AQBCC
  • 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 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • Contact Angle 15°
  • 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 7605 lbf
  • Static Radial Load 8550 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.54 kg
Super Precision Angular Contact Ball Bearings S71909 CD/P4AQBCC dimension drawing
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Features

Performance Features of S71909 CD/P4AQBCC Bearing

S71909 CD/P4AQBCC Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.

The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 7605 lbf.

Its phenolic cage ensures smooth operation at high speeds, reaching up to 46,000 rpm.

With a sealed design and grease lubrication, S71909 CD/P4AQBCC Bearing requires minimal maintenance.

Application

Industrial Uses of S71909 CD/P4AQBCC Bearing
S71909 CD/P4AQBCC Bearing is commonly used in high-precision machine tools, where its moderate preload and angular contact design ensure accurate spindle performance. The sealed construction keeps contaminants out, extending service life in demanding workshop environments.

Where Is S71909 CD/P4AQBCC Bearing Used?
In robotics, S71909 CD/P4AQBCC Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction. The matched set arrangement enhances stability in repetitive, high-speed operations.

Perfect Fit for Automation: S71909 CD/P4AQBCC Bearing
S71909 CD/P4AQBCC Bearing works well in automated production lines, particularly for pick-and-place systems requiring consistent angular load handling. Its grease lubrication ensures quiet operation over long shifts.

Medical vs Industrial: Where S71909 CD/P4AQBCC Bearing Excels
S71909 CD/P4AQBCC Bearing suits medical imaging devices needing low-vibration rotation, while also handling industrial grinders with equal reliability. The chrome steel construction resists wear in both sterile and gritty conditions.

How Does S71909 CD/P4AQBCC Bearing Support High-Speed Operations?
S71909 CD/P4AQBCC Bearing’s P4A tolerance class enables precise alignment in dental drill handpieces, minimising heat buildup. The 46,000 rpm rating makes it adaptable to turbine applications too.

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