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Super Precision Angular Contact Ball Bearings 71917 CDGB/P4A

Super Precision Angular Contact Ball Bearings 71917 CDGB/P4A

The 71917 CDGB/P4A is a super precision angular contact ball bearing with an 85mm bore and 120mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 10395 lbf and operates smoothly at speeds up to 17000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under light preload conditions. The open design allows for easy lubrication, extending its lifespan in demanding applications.

This bearing is ideal for high-precision machinery like CNC spindles or grinding machines, where accuracy and speed are crucial. It can be arranged in back-to-back, face-to-face, or tandem configurations for versatile use.

Weighing 0.53kg, it meets P4A tolerance standards and works in temperatures from -30°C to 110°C. Interchangeable with SKF bearings, it’s a reliable choice for replacements or upgrades.

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Product Parameters

  • Part Number 71917 CDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 85 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 25
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 10395 lbf
  • Static Radial Load 10800 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 17000 rpm
  • Weight 0.53 kg
  • Price（$） 215.352
Super Precision Angular Contact Ball Bearings 71917 CDGB/P4A dimension drawing
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Features

Performance Features of 71917 CDGB/P4A Bearing

71917 CDGB/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel construction ensures durability and resistance to wear under high radial loads.

The phenolic cage maintains ball alignment, enhancing smooth operation at speeds up to 17,000 rpm.
With a dynamic radial load capacity of 10,395 lbf, it handles demanding conditions reliably.

71917 CDGB/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its precision P4A tolerance class guarantees consistent performance in high-accuracy applications.

The open design allows for easy lubrication, reducing friction and extending service life.
Its universal matching capability enables flexible arrangement options for varied needs.

Application

Super Precision Angular Contact Ball Bearings 71917 CDGB/P4A are commonly used in high-speed machine tools, where their 15° contact angle ensures smooth rotation under radial and axial loads. The open design and phenolic cage make them suitable for applications requiring frequent lubrication.

In robotics, 71917 CDGB/P4A Bearings provide reliable performance in articulated arms, thanks to their tight tolerances and P4A precision class. Their lightweight phenolic cage reduces inertia, which is ideal for rapid movements.

For medical imaging equipment, these bearings offer quiet operation and consistent accuracy, crucial for diagnostic machines. The chrome steel construction ensures durability even in continuous use.

Automotive applications like electric power steering systems benefit from 71917 CDGB/P4A Bearings’ ability to handle combined loads. Their metric sizing makes them compatible with various European and Asian vehicle designs.

In 3D printers, these bearings contribute to precise linear motion, ensuring high-quality prints. The light preload helps maintain accuracy without adding excessive friction.

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