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Super Precision Angular Contact Ball Bearings 71828 CDGB/P4

Super Precision Angular Contact Ball Bearings 71828 CDGB/P4

The 71828 CDGB/P4 is a super precision angular contact ball bearing with a 140mm bore and 175mm outer diameter, crafted from high-grade chrome steel. It measures 18mm in width and is designed for angular contact loads, offering smooth operation at speeds up to 11,000 RPM.

With a 15° contact angle and phenolic cage, it handles radial loads up to 10102 lbf dynamically and 13950 lbf statically. Its open design allows for easy lubrication, ensuring long service life even in demanding conditions.

This bearing is ideal for high-precision applications like machine tool spindles or high-speed robotics. It operates efficiently in temperatures from -30°C to 110°C and comes in a universal matching set for versatile mounting options.

Weighing 0.8kg, it meets P4 tolerance standards for exceptional accuracy. Its interchangeable design with SKF bearings makes it a reliable choice for replacements or upgrades.

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Product Parameters

  • Part Number 71828 CDGB/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 175 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 10.319 mm
  • Ball Qty 35
  • Contact Angle 15°
  • Tolerance Class P4
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 10102 lbf
  • Static Radial Load 13950 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 0.8 kg
Super Precision Angular Contact Ball Bearings 71828 CDGB/P4 dimension drawing
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Features

Performance Features of 71828 CDGB/P4 Bearing

71828 CDGB/P4 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 dynamic radial loads up to 10102 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.

With a maximum speed of 11,000 rpm, it delivers reliable performance in high-speed precision tasks.

Application

Key Fields for 71828 CDGB/P4 Bearing
71828 CDGB/P4 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4 tolerance make it suitable for applications demanding minimal vibration.

In aerospace components, 71828 CDGB/P4 Bearing handles radial and axial loads efficiently, such as in helicopter rotor systems. Its phenolic cage offers stability at high speeds, which is crucial for aviation safety.

For automation equipment, 71828 CDGB/P4 Bearing supports robotic arms, providing smooth movement with its chrome steel construction. The open design allows for easy lubrication, extending service life in continuous operation.

Medical imaging devices benefit from 71828 CDGB/P4 Bearing’s precision, ensuring reliable performance in MRI machines. The temperature range of -30°C to 110°C makes it adaptable to various clinical environments.

In electric vehicle motors, 71828 CDGB/P4 Bearing aids in reducing friction, enhancing energy efficiency. Its compatibility with tandem or back-to-back arrangements offers flexibility in motor design.

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