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Super Precision Angular Contact Ball Bearings S71904 CEGA/HCP4A

Super Precision Angular Contact Ball Bearings S71904 CEGA/HCP4A

The S71904 CEGA/HCP4A is a super precision angular contact ball bearing with a compact 20mm bore and 37mm outer diameter. Its 15° contact angle and ceramic balls ensure smooth, high-speed operation up to 75,000 RPM.

Made from chrome steel with a phenolic cage, it handles radial loads up to 1112 lbf and comes pre-lubricated with grease. The sealed design keeps contaminants out for reliable performance in temperatures from -30°C to 110°C.

With an extra-light preload (Class A) and P4A tolerance, it offers exceptional accuracy for demanding applications. This bearing is interchangeable with SKF models and can be paired in back-to-back, face-to-face, or tandem configurations.

Ideal for high-speed spindles, precision tools, or medical equipment where low friction and tight tolerances are crucial. Weighing just 31g, it’s lightweight yet robust for its size.

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Product Parameters

  • Part Number S71904 CEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 14
  • Contact Angle 15°
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1112 lbf
  • Static Radial Load 531 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 75000 rpm
  • Weight 0.031 kg
Super Precision Angular Contact Ball Bearings S71904 CEGA/HCP4A dimension drawing
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Features

Performance Features of S71904 CEGA/HCP4A Bearing

S71904 CEGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 75,000 rpm, it excels in high-speed applications.

S71904 CEGA/HCP4A Bearing operates smoothly within a temperature range of -30°C to 110°C.
Its sealed design and grease lubrication minimise maintenance needs, ensuring long service life.

The P4A tolerance class guarantees exceptional accuracy, making it ideal for precision machinery.
Its lightweight design at 0.031 kg ensures easy integration without compromising strength.

Application

Super Precision Angular Contact Ball Bearings S71904 CEGA/HCP4A is commonly used in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The sealed design keeps contaminants out, ensuring long-lasting performance in demanding conditions.

In robotics, S71904 CEGA/HCP4A provides smooth motion control for articulated arms, thanks to its angular contact design and extra-light preload. The P4A tolerance class ensures the precision needed for repeatable movements.

For dental handpieces, S71904 CEGA/HCP4A’s grease lubrication and ceramic balls offer quiet operation and reliability. The compact size fits neatly into tight spaces without compromising on load capacity.

In optical equipment like lens positioning systems, S71904 CEGA/HCP4A’s chrome steel rings and precise tolerances maintain alignment under angular loads. The temperature stability also makes it suitable for lab environments.

Q&A

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