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Super Precision Angular Contact Ball Bearings 71818 CD/P4

Super Precision Angular Contact Ball Bearings 71818 CD/P4

The 71818 CD/P4 is a super precision angular contact ball bearing with a 90mm bore and 115mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 4860 lbf and operates smoothly at speeds up to 17,000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows for easy lubrication. The bearing is rated to P4 tolerance class, offering excellent precision for demanding applications.

This model works well in temperatures from -30°C to 110°C and is interchangeable with SKF bearings. Ideal for high-speed machinery like spindles or precision tools where accuracy is crucial.

Weighing just 0.28kg, it’s lightweight yet durable. The preload option adds versatility for specific setups.

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Product Parameters

  • Part Number 71818 CD/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 115 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 31
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4860 lbf
  • Static Radial Load 5962 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 17000 rpm
  • Weight 0.28 kg
  • Price（$） 259.434
Super Precision Angular Contact Ball Bearings 71818 CD/P4 dimension drawing
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Features

Performance Features of 71818 CD/P4 Bearing

71818 CD/P4 Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under dynamic radial loads up to 4860 lbf.

The phenolic cage in 71818 CD/P4 Bearing maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 17,000 rpm, it delivers smooth operation in high-speed scenarios.

71818 CD/P4 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its P4 tolerance class ensures precision, making it suitable for demanding applications.

Application

Common Applications of 71818 CD/P4 Bearing
71818 CD/P4 Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The P4 tolerance class makes it suitable for applications demanding minimal runout.

In robotics, 71818 CD/P4 Bearing supports articulated arms, providing smooth movement and long service life. Its phenolic cage reduces friction, enhancing efficiency in automated systems.

For medical imaging devices, 71818 CD/P4 Bearing offers reliable performance due to its chrome steel construction. The open design allows for easy lubrication, maintaining precision in critical operations.

In automotive transmissions, 71818 CD/P4 Bearing handles combined radial and axial loads effectively. Its high-speed capability makes it a dependable choice for performance vehicles.

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