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Super Precision Angular Contact Ball Bearings 71917 ACD/HCP4ATBTCGMM

Super Precision Angular Contact Ball Bearings 71917 ACD/HCP4ATBTCGMM

The 71917 ACD/HCP4ATBTCGMM is a super precision angular contact ball bearing with an 85mm bore and 120mm outer diameter, crafted from chrome steel for durability. Its 25° contact angle and ceramic balls ensure smooth operation under high radial loads up to 21060 lbf.

This set includes three matched bearings arranged in a TBT configuration, offering moderate preload for stable performance. The phenolic cage and grease lubrication allow it to reach speeds up to 28000 RPM while maintaining precision.

Ideal for high-speed applications like machine tool spindles or precision equipment, it operates reliably between -30°C and 110°C. The P4A tolerance class guarantees exceptional accuracy for demanding tasks.

Weighing 1.35kg, this bearing set is interchangeable with SKF models, making it a practical choice for replacements or upgrades in industrial settings.

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Product Parameters

  • Part Number 71917 ACD/HCP4ATBTCGMM
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 85 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 54 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 25
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 21060 lbf
  • Static Radial Load 30825 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 1.35 kg
Super Precision Angular Contact Ball Bearings 71917 ACD/HCP4ATBTCGMM dimension drawing
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Features

Performance Features of 71917 ACD/HCP4ATBTCGMM Bearing

71917 ACD/HCP4ATBTCGMM Bearing features a 25° contact angle, optimised for angular contact loads.
Its chrome steel rings and ceramic balls enhance durability and reduce friction during high-speed operation.

The phenolic cage maintains ball alignment, ensuring smooth performance even at 28,000 rpm.
With a dynamic radial load capacity of 21060 lbf, it handles demanding applications with ease.

71917 ACD/HCP4ATBTCGMM Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its matched arrangement of three bearings provides stability and balanced load distribution.

Application

Industrial Uses of 71917 ACD/HCP4ATBTCGMM Bearing
71917 ACD/HCP4ATBTCGMM Bearing is commonly used in high-precision machine tools, where its moderate preload and ceramic balls ensure smooth operation. The matched arrangement of three bearings provides excellent stability for spindle applications.

What Makes 71917 ACD/HCP4ATBTCGMM Bearing a Preferred Choice?
In robotics, 71917 ACD/HCP4ATBTCGMM Bearing offers reliable performance in articulated arms due to its phenolic cage and high-speed capability. The 25° contact angle helps manage combined loads effectively.

Built for Heavy-Duty Use: 71917 ACD/HCP4ATBTCGMM Bearing
For aerospace applications, 71917 ACD/HCP4ATBTCGMM Bearing handles radial and axial loads in avionics systems. Its P4A tolerance class ensures precision even under demanding conditions.

Automotive vs Aerospace: Applications of 71917 ACD/HCP4ATBTCGMM Bearing
In automotive testing equipment, 71917 ACD/HCP4ATBTCGMM Bearing supports high-speed dynamometers with minimal friction. The grease lubrication extends service life in continuous operation.

Perfect Fit for Automation: 71917 ACD/HCP4ATBTCGMM Bearing
71917 ACD/HCP4ATBTCGMM Bearing works well in CNC machinery, where its chrome steel rings resist wear. The open design allows for easy inspection and maintenance during production runs.

Q&A

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