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Super Precision Angular Contact Ball Bearings 71903 CDGB/HCP4A

Super Precision Angular Contact Ball Bearings 71903 CDGB/HCP4A

The 71903 CDGB/HCP4A is a super precision angular contact ball bearing with a compact size of 17mm by 30mm by 7mm. Made from chrome steel rings and ceramic balls, it offers smooth operation and durability.

With a 15° contact angle, it handles both radial and angular loads efficiently. It can spin at high speeds up to 80,000 RPM and works in temperatures from -30°C to 110°C.

The phenolic cage ensures stability, while the P4A tolerance class guarantees precision. It comes pre-lubricated for easy use and is part of a universal matching set for versatile configurations.

Ideal for high-speed applications like machine tool spindles or precision instruments where accuracy is key. Its lightweight design at just 0.015kg makes it easy to handle.

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Product Parameters

  • Part Number 71903 CDGB/HCP4A
  • 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 7 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 Open
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 936 lbf
  • Static Radial Load 468 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 80000 rpm
  • Weight 0.015 kg
Super Precision Angular Contact Ball Bearings 71903 CDGB/HCP4A dimension drawing
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Features

Performance Features of 71903 CDGB/HCP4A Bearing

71903 CDGB/HCP4A Bearing is designed with a 15° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and ceramic balls ensure smooth operation even at high speeds up to 80,000 rpm.

The phenolic cage in 71903 CDGB/HCP4A Bearing reduces friction and wear, enhancing longevity.
With a dynamic radial load capacity of 936 lbf, it performs reliably in precision applications.

71903 CDGB/HCP4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its P4A tolerance class guarantees high precision and consistent performance.

Application

Key Fields for 71903 CDGB/HCP4A Bearing
71903 CDGB/HCP4A Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The P4A tolerance ensures precision in demanding applications like CNC spindles.

In robotics, 71903 CDGB/HCP4A Bearing supports articulated arms, offering reliable angular contact performance. Its lightweight design and high-speed capability make it ideal for repetitive, precise movements.

For medical imaging devices, 71903 CDGB/HCP4A Bearing’s low heat generation and quiet operation are key advantages. The chrome steel rings provide durability, while the open design allows for easy lubrication.

Automotive applications include electric power steering systems, where 71903 CDGB/HCP4A Bearing handles combined loads efficiently. The 15° contact angle optimises performance in compact spaces.

In aerospace instrumentation, 71903 CDGB/HCP4A Bearing’s temperature stability and precision are critical. Its ceramic balls resist wear, ensuring long service life in sensitive equipment.

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