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Super Precision Angular Contact Ball Bearings S71920 ACE/HCP4ATBTA

Super Precision Angular Contact Ball Bearings S71920 ACE/HCP4ATBTA

The S71920 ACE/HCP4ATBTA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-grade chrome steel and ceramic balls. It handles radial loads up to 17842 lbf and spins smoothly at speeds up to 16250 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The bearing operates reliably in temperatures from -30°C to 110°C.

This set includes three matched bearings arranged in a TBT configuration, ideal for high-precision applications like machine tool spindles or medical equipment. The extra-light preload (Class A) ensures minimal friction and smooth rotation.

Weighing 1.98kg, it’s a robust choice for demanding environments. Compliant with P4A tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number S71920 ACE/HCP4ATBTA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 60 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 17842 lbf
  • Static Radial Load 20250 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 1.98 kg
Super Precision Angular Contact Ball Bearings S71920 ACE/HCP4ATBTA dimension drawing
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Features

Performance Features of S71920 ACE/HCP4ATBTA Bearing

S71920 ACE/HCP4ATBTA Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and ceramic balls provide high precision and durability in demanding applications.

The phenolic cage ensures smooth operation and reduces friction, even at high speeds up to 16,250 rpm.
With a dynamic radial load capacity of 17,842 lbf, it delivers reliable performance in precision machinery.

S71920 ACE/HCP4ATBTA Bearing comes preloaded for extra light operation, enhancing stability and accuracy.
Its sealed design and grease lubrication minimise maintenance needs, ensuring long service life.

Application

Key Fields for S71920 ACE/HCP4ATBTA Bearing
S71920 ACE/HCP4ATBTA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, making it ideal for demanding workshop environments.

In robotics, S71920 ACE/HCP4ATBTA Bearing provides smooth motion control for articulated arms, thanks to its ceramic balls and phenolic cage. The extra light preload also minimises friction during repetitive movements.

For medical imaging devices like CT scanners, S71920 ACE/HCP4ATBTA Bearing’s P4A tolerance class delivers the required precision. Its grease lubrication ensures quiet operation, crucial in sensitive diagnostic equipment.

The matched set of three bearings makes S71920 ACE/HCP4ATBTA Bearing suitable for complex axial load applications in aerospace components. The temperature range allows reliable performance in various operating conditions.

In semiconductor manufacturing equipment, S71920 ACE/HCP4ATBTA Bearing’s ceramic balls reduce electrical conductivity risks. The 25° contact angle provides optimal load distribution for high-speed wafer handling systems.

Q&A

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