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Super Precision Angular Contact Ball Bearings 71903 ACE/HCP4AHDGB

Super Precision Angular Contact Ball Bearings 71903 ACE/HCP4AHDGB

The 71903 ACE/HCP4AHDGB is a super precision angular contact ball bearing with a compact size of 17mm by 30mm by 14mm, crafted from chrome steel and ceramic balls for durability. It handles radial loads up to 1170 lbf and spins at speeds up to 121,000 RPM, making it suitable for high-performance applications.

Its open design and phenolic cage ensure smooth operation, while the 25° contact angle provides stability under angular loads. The bearing comes pre-lubricated and operates efficiently in temperatures from -30°C to 110°C.

This model is part of a matched set of two bearings, allowing flexible arrangements like back-to-back or face-to-face mounting. Ideal for precision machinery, spindles, or high-speed tools where accuracy is key.

Weighing just 0.028kg, it’s lightweight yet robust, meeting P4A tolerance standards for exceptional precision. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71903 ACE/HCP4AHDGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 17 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 30 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 13
  • Contact Angle 25°
  • Tolerance Class P4A
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1170 lbf
  • Static Radial Load 652 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 121000 rpm
  • Weight 0.028 kg
Super Precision Angular Contact Ball Bearings 71903 ACE/HCP4AHDGB dimension drawing
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Features

How Does 71903 ACE/HCP4AHDGB Bearing Achieve Super Precision?

71903 ACE/HCP4AHDGB Bearing features a 25° contact angle, optimised for handling combined radial and axial loads with high accuracy.
Its ceramic balls and chrome steel rings reduce friction, enabling smoother operation at speeds up to 121,000 rpm.

The phenolic cage ensures stability and minimal heat generation, even under demanding conditions.
With universal matching capability, it offers flexibility in back-to-back, face-to-face, or tandem arrangements.

Light preload (Class B) enhances precision while maintaining smooth performance.
Its P4A tolerance class guarantees consistent accuracy for critical applications.

Application

Common Applications of 71903 ACE/HCP4AHDGB Bearing
In machine tools, 71903 ACE/HCP4AHDGB Bearing handles high-speed spindle rotations with precision, thanks to its ceramic balls and P4A tolerance class. The universal matching design allows flexible arrangements for varied load demands.

Where Is 71903 ACE/HCP4AHDGB Bearing Used?
You’ll often spot 71903 ACE/HCP4AHDGB Bearing in robotics, where its light preload ensures smooth motion in articulated arms. The phenolic cage reduces friction, ideal for repetitive tasks.

Optimized for Performance: 71903 ACE/HCP4AHDGB Bearing
For small electric motors, 71903 ACE/HCP4AHDGB Bearing’s 25° contact angle manages combined radial and axial loads efficiently. Its compact 17 mm bore fits neatly in space-constrained designs.

Medical vs Industrial: Where 71903 ACE/HCP4AHDGB Bearing Excels
In dental drills, 71903 ACE/HCP4AHDGB Bearing’s ceramic balls minimise heat buildup during high-speed operation. Industrial pumps benefit from its corrosion-resistant chrome steel rings.

Perfect Fit for Automation: 71903 ACE/HCP4AHDGB Bearing
3D printers rely on 71903 ACE/HCP4AHDGB Bearing for precise linear motion control. The matched set simplifies installation in dual-bearing configurations.

Q&A

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