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Super Precision Angular Contact Ball Bearings S71903 CD/P4AQBCC

Super Precision Angular Contact Ball Bearings S71903 CD/P4AQBCC

The S71903 CD/P4AQBCC is a super precision angular contact ball bearing with a compact 17mm bore and 30mm outer diameter, crafted from durable chrome steel. Its 15° contact angle efficiently handles combined radial and axial loads, supporting up to 2498 lbf dynamically.

Sealed for protection and preloaded for stability, this bearing set includes four matched units (QBC arrangement) for balanced performance. The phenolic cage and grease lubrication ensure smooth operation at speeds up to 85,000 RPM.

Ideal for high-precision applications like machine tool spindles or robotics, it maintains accuracy even under moderate loads. With a temperature range of -30°C to 110°C, it suits most industrial environments.

Weighing just 0.068kg per bearing, the set offers lightweight precision without compromising strength. Compliant with P4A tolerance standards, it’s interchangeable with SKF equivalents for easy replacement.

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Product Parameters

  • Part Number S71903 CD/P4AQBCC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 17 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 30 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 28 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 14
  • 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 2498 lbf
  • Static Radial Load 1868 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 85000 rpm
  • Weight 0.068 kg
Super Precision Angular Contact Ball Bearings S71903 CD/P4AQBCC dimension drawing
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Features

Performance Features of S71903 CD/P4AQBCC Bearing

S71903 CD/P4AQBCC Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.

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

With a maximum speed of 85,000 rpm, it delivers reliable performance in demanding conditions.

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

Application

Essential Roles of S71903 CD/P4AQBCC Bearing
S71903 CD/P4AQBCC Bearing is widely used in high-precision machine tools, where its 15° contact angle ensures accurate radial and axial load handling. The sealed design keeps contaminants out, extending service life in demanding industrial environments.

What Makes S71903 CD/P4AQBCC Bearing a Preferred Choice?
In robotics, S71903 CD/P4AQBCC Bearing provides smooth motion control for articulated arms, thanks to its moderate preload and phenolic cage. Its compact size and high-speed capability make it ideal for space-constrained applications.

Optimized for Performance: S71903 CD/P4AQBCC Bearing
For medical imaging devices, S71903 CD/P4AQBCC Bearing offers reliable rotation with minimal vibration, crucial for clear diagnostic results. The chrome steel construction ensures durability even with frequent use.

Automotive vs Aerospace: Applications of S71903 CD/P4AQBCC Bearing
In automotive systems, S71903 CD/P4AQBCC Bearing supports high-speed spindles, while in aerospace, its precision tolerances are vital for navigation equipment. The matched set arrangement enhances stability in both fields.

Q&A

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