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Super Precision Angular Contact Ball Bearings S71919 ACD/P4AQBCD

Super Precision Angular Contact Ball Bearings S71919 ACD/P4AQBCD

The S71919 ACD/P4AQBCD is a super precision angular contact ball bearing with a 95mm bore and 130mm outer diameter, crafted from durable chrome steel. It handles heavy radial loads up to 27225 lbf and operates smoothly at speeds up to 21000 RPM.

Its sealed design and phenolic cage ensure long-lasting performance with minimal maintenance. The 25° contact angle and heavy preload (Class D) provide excellent stability for high-precision applications.

This set includes four matched bearings (QBC arrangement), ideal for spindle or rotary table use. It works reliably in temperatures from -30°C to 110°C and comes pre-lubricated with grease.

Weighing 2.38kg, it’s a robust choice for machine tools or aerospace systems where precision and durability matter. Compliant with P4A tolerance standards for consistent performance.

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Product Parameters

  • Part Number S71919 ACD/P4AQBCD
  • 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 <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Heavy / Class D
  • 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/P4AQBCD dimension drawing
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Features

Performance Features of S71919 ACD/P4AQBCD Bearing

S71919 ACD/P4AQBCD Bearing is designed with a 25° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 27225 lbf.

The sealed design and phenolic cage ensure smooth operation, even at high speeds of 21,000 rpm.
Heavy preload class D improves stability, making it suitable for demanding angular contact tasks.

With a temperature range of -30°C to 110°C, S71919 ACD/P4AQBCD Bearing performs reliably in varied conditions.
The matched set of four bearings offers consistent performance, reducing alignment issues.

Grease lubrication simplifies maintenance, while the P4A tolerance class ensures high precision.
Its robust construction and precise engineering make it a dependable choice for industrial applications.

Application

Key Fields for S71919 ACD/P4AQBCD Bearing
S71919 ACD/P4AQBCD Bearing is widely 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 workshop conditions.

In robotics, S71919 ACD/P4AQBCD Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction. The matched set of four bearings offers excellent load distribution for repetitive movements.

For aerospace applications, S71919 ACD/P4AQBCD Bearing handles both radial and thrust loads in aircraft components. Its P4A tolerance class guarantees the precision needed for critical flight systems.

Medical imaging devices benefit from S71919 ACD/P4AQBCD Bearing’s quiet operation and minimal vibration. The grease lubrication ensures maintenance-free performance in sensitive diagnostic equipment.

In high-speed automation lines, S71919 ACD/P4AQBCD Bearing’s 21,000 rpm rating keeps production running smoothly. The chrome steel construction withstands continuous operation without compromising precision.

Q&A

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