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Super Precision Angular Contact Ball Bearings 71821 CDGC/P4

Super Precision Angular Contact Ball Bearings 71821 CDGC/P4

The 71821 CDGC/P4 is a super precision angular contact ball bearing with a 105mm bore and 130mm outer diameter, crafted from durable chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 5152 lbf and a static radial load of 6750 lbf.

Designed for high-speed applications, it spins smoothly up to 16,000 RPM and operates in temperatures from -30°C to 110°C. The phenolic cage ensures quiet performance and longevity, while the open design allows easy lubrication.

This bearing comes in a matched set of three, suitable for universal mounting configurations like back-to-back, face-to-face, or tandem arrangements. Its P4 tolerance class guarantees exceptional precision.

Ideal for precision machinery, spindles, or high-speed tools where accuracy and reliability are crucial. Weighing just 0.32kg, it’s lightweight yet robust for demanding applications.

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Product Parameters

  • Part Number 71821 CDGC/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 130 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 35
  • Contact Angle 15°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 5152 lbf
  • Static Radial Load 6750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 0.32 kg
Super Precision Angular Contact Ball Bearings 71821 CDGC/P4 dimension drawing
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Features

Performance Features of 71821 CDGC/P4 Bearing

71821 CDGC/P4 Bearing is crafted with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 5152 lbf, 71821 CDGC/P4 Bearing handles demanding conditions reliably.
The P4 tolerance class guarantees precision, making it suitable for high-accuracy machinery.

71821 CDGC/P4 Bearing operates efficiently in temperatures from -30°C to 110°C, ensuring consistent performance.
Its matched arrangement option allows for versatile configurations like back-to-back or face-to-face setups.

The lubricated design reduces friction, supporting speeds up to 16,000 rpm without compromising longevity.
Weighing just 0.32 kg, it combines strength with lightweight efficiency for various industrial uses.

Application

Industrial Uses of 71821 CDGC/P4 Bearing
The 71821 CDGC/P4 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its moderate preload and P4 tolerance make it suitable for applications demanding tight control.

In automotive systems, 71821 CDGC/P4 Bearing supports components like electric motors and gearboxes, providing reliable performance under radial and axial loads. The chrome steel construction enhances durability in demanding conditions.

For automation equipment, 71821 CDGC/P4 Bearing’s phenolic cage reduces friction, making it ideal for high-speed robotic arms. Its matched arrangement options allow for flexible installation in various configurations.

Medical imaging devices benefit from 71821 CDGC/P4 Bearing’s precision, ensuring smooth operation in scanners and diagnostic machines. The open design facilitates easy lubrication, maintaining performance over time.

Q&A

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