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Super Precision Angular Contact Ball Bearings 71828 CD/P4DGB

Super Precision Angular Contact Ball Bearings 71828 CD/P4DGB

The 71828 CD/P4DGB is a super precision angular contact ball bearing with a 140mm bore and 175mm outer diameter, crafted from durable chrome steel. It supports radial loads up to 16380 lbf and operates smoothly at speeds up to 11000 RPM.

Its 15° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face mounting. The phenolic cage ensures quiet, long-lasting performance even under light preload conditions.

This bearing is lubricated for easy maintenance and works reliably in temperatures from -30°C to 110°C. Ideal for high-precision applications like machine tool spindles or aerospace components where accuracy is key.

Weighing 1.6kg, it comes as a matched set of two bearings for balanced performance. Compliant with P4 tolerance standards, it’s interchangeable with SKF models for hassle-free replacements.

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Product Parameters

  • Part Number 71828 CD/P4DGB
  • 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 36 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 Universal matching
  • 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 16380 lbf
  • Static Radial Load 28125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 1.6 kg
Super Precision Angular Contact Ball Bearings 71828 CD/P4DGB dimension drawing
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Features

Performance Features of 71828 CD/P4DGB Bearing

71828 CD/P4DGB Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 16380 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees high precision, making it suitable for critical applications.

Operating at speeds up to 11,000 rpm, it maintains smooth performance.
Its universal matching design allows flexible arrangements like back-to-back or face-to-face configurations.

The lubrication system ensures consistent performance, even in high-speed operations.
Its temperature range of -30°C to 110°C makes it adaptable to various environments.

Application

Industrial Uses of 71828 CD/P4DGB Bearing
71828 CD/P4DGB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The universal matching feature allows for flexible arrangements, making it suitable for complex setups.

In aerospace applications, 71828 CD/P4DGB Bearing handles radial and axial loads in turbine systems, thanks to its phenolic cage and chrome steel construction. Its light preload ensures smooth operation even at high speeds.

For automation systems, 71828 CD/P4DGB Bearing supports robotic arms and CNC machines, where consistent performance is key. The P4 tolerance class guarantees precision in demanding environments.

Medical imaging devices also benefit from 71828 CD/P4DGB Bearing’s reliability, as it maintains stability in high-speed rotations. The open design simplifies lubrication, extending service life in critical applications.

Q&A

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