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Super Precision Angular Contact Ball Bearings 71903 CEGA/HCPA9A

Super Precision Angular Contact Ball Bearings 71903 CEGA/HCPA9A

The 71903 CEGA/HCPA9A 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 radial loads up to 760 lbf and spins at speeds up to 80,000 RPM. The extra light preload ensures minimal friction, making it efficient for high-speed applications.

Its open design allows for easy lubrication, while the phenolic cage provides stability. The bearing is universal matching, suitable for back-to-back, face-to-face, or tandem arrangements.

Ideal for precision machinery like spindles or dental equipment, it operates in temperatures from -30°C to 110°C. Weighing just 0.014kg, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number 71903 CEGA/HCPA9A
  • 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 13
  • Contact Angle 15°
  • Tolerance Class PA9A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 760 lbf
  • Static Radial Load 344 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 80000 rpm
  • Weight 0.014 kg
Super Precision Angular Contact Ball Bearings 71903 CEGA/HCPA9A dimension drawing
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Features

Performance Features of 71903 CEGA/HCPA9A Bearing

71903 CEGA/HCPA9A Bearing is crafted with chrome steel rings and ceramic balls, ensuring smooth operation under high-speed conditions.
Its extra light preload design enhances precision, making it ideal for angular contact applications.

The phenolic cage maintains ball alignment, reducing friction and wear during operation.
With a maximum speed of 80,000 rpm, it delivers reliable performance in demanding environments.

71903 CEGA/HCPA9A Bearing’s dynamic radial load capacity of 760 lbf ensures durability under stress.
Its temperature range of -30°C to 110°C allows for versatile use in various conditions.

Application

Ideal for Precision: 71903 CEGA/HCPA9A Bearing
71903 CEGA/HCPA9A Bearing works well in high-speed machine spindles, where its ceramic balls reduce friction and heat buildup. The 15° contact angle helps manage combined radial and axial loads smoothly.

In robotics, 71903 CEGA/HCPA9A Bearing ensures accurate movement in joints and arms due to its extra-light preload. Its phenolic cage dampens vibrations, making operations quieter and more precise.

For dental handpieces, 71903 CEGA/HCPA9A Bearing’s PA9A tolerance class delivers the consistency needed for delicate procedures. The open design allows easy lubrication, extending service life in demanding clinical environments.

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