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Super Precision Angular Contact Ball Bearings 71902 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71902 CDGA/HCP4A

The 71902 CDGA/HCP4A is a super precision angular contact ball bearing, measuring 15mm by 28mm by 7mm. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

It handles radial loads up to 893 lbf and spins at speeds up to 230,000 RPM, ideal for high-performance applications. The extra light preload ensures minimal friction and precise movement.

Its open design allows easy lubrication, while the phenolic cage provides stability. The bearing works in temperatures from -30°C to 110°C, suitable for various environments.

This model is interchangeable with SKF bearings and comes in a set of two for universal matching. Perfect for precision machinery like spindles or dental tools where accuracy is key.

Weighing just 0.014kg, it’s lightweight yet robust. Compliant with P4A tolerance class for high precision.

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Product Parameters

  • Part Number 71902 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 15 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 28 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 13
  • Contact Angle 15°
  • Tolerance Class P4A
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 893 lbf
  • Static Radial Load 428 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 230000 rpm
  • Weight 0.014 kg
Super Precision Angular Contact Ball Bearings 71902 CDGA/HCP4A dimension drawing
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Features

How Is 71902 CDGA/HCP4A Bearing Engineered for Reliability?

71902 CDGA/HCP4A Bearing features a 15° contact angle, optimised for precision angular contact applications.
The chrome steel rings and ceramic balls enhance durability while reducing friction.

With a dynamic radial load capacity of 893 lbf, it handles demanding conditions effortlessly.
The phenolic cage ensures smooth operation, even at high speeds up to 230,000 rpm.

Its extra-light preload design minimises vibration, improving performance in sensitive equipment.
The P4A tolerance class guarantees consistent accuracy for precision tasks.

71902 CDGA/HCP4A Bearing operates reliably within a temperature range of -30°C to 110°C.
Its compact size (15 mm×28 mm×7 mm) makes it ideal for space-constrained applications.

Application

Where Is 71902 CDGA/HCP4A Bearing Used?
71902 CDGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The 15° contact angle helps manage both radial and axial loads efficiently.

In robotics, 71902 CDGA/HCP4A Bearing ensures precise movement in joints and arms, thanks to its P4A tolerance class. Its lightweight design also minimises energy loss during rapid motions.

For dental drills and other medical devices, 71902 CDGA/HCP4A Bearing’s ceramic components provide quiet, reliable performance. The open seal design allows for easy lubrication, extending service life in demanding conditions.

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