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Super Precision Angular Contact Ball Bearings S71911 CDGA/HCP4A
Super Precision Angular Contact Ball Bearings S71911 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings S71911 CDGA/HCP4A

The S71911 CDGA/HCP4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from chrome steel for durability. Its compact 13mm width makes it suitable for tight spaces, while the ceramic balls reduce friction for smoother operation.

This bearing handles radial loads up to 4388 lbf and spins at impressive speeds of up to 34,000 RPM. The sealed design keeps grease in and contaminants out, ensuring long-lasting performance even in temperatures from -30°C to 110°C.

With a 15° contact angle and extra-light preload, it offers precise movement and low noise. The phenolic cage adds strength and reduces weight, making it just 0.16kg.

Ideal for high-speed applications like machine tool spindles or precision instruments. It’s interchangeable with SKF bearings and comes in matched sets for versatile mounting options. Compliant with P4A tolerance standards for reliable accuracy.

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Product Parameters

  • Part Number S71911 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 4388 lbf
  • Static Radial Load 3285 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.16 kg

Features

Performance Features of S71911 CDGA/HCP4A Bearing

S71911 CDGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring smooth operation under high-speed conditions.
Its 15° contact angle provides excellent radial and axial load capacity, making it ideal for precision applications.

The phenolic cage maintains ball alignment, reducing friction and extending the bearing’s lifespan.
With a maximum speed of 34,000 rpm, it delivers reliable performance in demanding environments.

S71911 CDGA/HCP4A Bearing’s sealed design protects against contaminants, ensuring consistent lubrication.
Its extra light preload enhances precision, making it suitable for high-accuracy machinery.

Application

How Does S71911 CDGA/HCP4A Bearing Improve Performance?
S71911 CDGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The P4A tolerance ensures precise alignment, critical for maintaining accuracy in machining processes.

In robotics, S71911 CDGA/HCP4A Bearing supports articulated arms, offering reliable angular contact under dynamic loads. Its sealed design helps keep contaminants out, extending service life in demanding environments.

For medical imaging devices, S71911 CDGA/HCP4A Bearing’s chrome steel rings and grease lubrication provide quiet, consistent performance. The extra-light preload minimises vibration, essential for clear diagnostic results.

Automotive applications like electric vehicle motors benefit from S71911 CDGA/HCP4A Bearing’s high-speed capability and temperature resistance. The metric sizing ensures compatibility with a range of European and Asian designs.

In consumer electronics, S71911 CDGA/HCP4A Bearing is found in precision equipment like 3D printers, where its low friction and durability enhance print quality. The compact design fits seamlessly into tight spaces.

Q&A

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