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Super Precision Angular Contact Ball Bearings S71919 ACD/P4AQBTC

Super Precision Angular Contact Ball Bearings S71919 ACD/P4AQBTC

The S71919 ACD/P4AQBTC is a super precision angular contact ball bearing with a 95mm bore and 130mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 27225 lbf and operates smoothly at speeds up to 21000 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The moderate preload (Class C) enhances stability in high-speed applications.

This set includes four matched bearings, ideal for precision machinery like spindles or CNC tools where accuracy is key. It works well in temperatures from -30°C to 110°C and is interchangeable with SKF models.

Weighing 2.38kg, it’s robust yet manageable for its size. The 25° contact angle efficiently manages combined radial and axial loads.

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Product Parameters

  • Part Number S71919 ACD/P4AQBTC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 95 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 130 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 72 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 4 bearings <>>> QBT
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 27225 lbf
  • Static Radial Load 46800 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 21000 rpm
  • Weight 2.38 kg
Super Precision Angular Contact Ball Bearings S71919 ACD/P4AQBTC dimension drawing
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Features

Performance Features of S71919 ACD/P4AQBTC Bearing

S71919 ACD/P4AQBTC Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

The bearing’s dynamic radial load capacity of 27,225 lbf makes it suitable for high-performance machinery.
With a maximum speed of 21,000 rpm, it maintains efficiency without compromising reliability.

S71919 ACD/P4AQBTC Bearing operates in temperatures from -30°C to 110°C, adapting to various working conditions.
The sealed design and grease lubrication minimise maintenance needs, extending service life.

The matched arrangement of four bearings ensures consistent performance in demanding setups.
Its P4A tolerance class guarantees precision, making it ideal for high-accuracy applications.

Application

Industrial Uses of S71919 ACD/P4AQBTC Bearing
S71919 ACD/P4AQBTC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, extending service life in demanding environments.

Where Is S71919 ACD/P4AQBTC Bearing Used?
In robotics, S71919 ACD/P4AQBTC Bearing provides smooth motion control for articulated arms, thanks to its moderate preload and phenolic cage. The matched set of four bearings offers balanced performance for complex movements.

Built for Heavy-Duty Use: S71919 ACD/P4AQBTC Bearing
S71919 ACD/P4AQBTC Bearing handles heavy radial loads in industrial gearboxes, making it a reliable choice for power transmission systems. Its chrome steel rings and balls ensure durability under continuous operation.

Automotive vs Aerospace: Applications of S71919 ACD/P4AQBTC Bearing
In automotive applications, S71919 ACD/P4AQBTC Bearing supports high-speed wheel hubs, while in aerospace, it’s used in turbine systems for its precision and temperature resistance. The P4A tolerance class guarantees consistent performance in both fields.

Q&A

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