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Super Precision Angular Contact Ball Bearings S71920 CD/HCP4AQBCA

Super Precision Angular Contact Ball Bearings S71920 CD/HCP4AQBCA

The S71920 CD/HCP4AQBCA is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 35775 lbf and operates smoothly at speeds up to 16250 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The 15° contact angle and extra-light preload make it ideal for high-precision applications.

This matched set of four bearings (QBC arrangement) offers consistent performance in demanding conditions. Perfect for machine tools or high-speed spindles where accuracy and reliability are key.

Weighing 2.73kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s a top choice for precision engineering tasks. Works well in temperatures from -30°C to 110°C.

The ceramic balls reduce friction and heat, enhancing efficiency. Its sealed construction means less maintenance, making it a practical option for busy workshops.

Interchangeable with SKF bearings, it’s a versatile replacement option. Suitable for applications requiring tight tolerances and smooth operation, such as CNC machinery or aerospace components.

The grease lubrication ensures smooth running, while the phenolic cage dampens vibrations. A reliable choice for high-speed, high-precision environments where performance can’t be compromised.

With 26 ceramic balls, it balances load distribution and speed. The 80mm width provides stability, making it a solid pick for heavy-duty precision tasks.

Its matched set design ensures uniform performance across all four bearings. Ideal for systems where consistent alignment and minimal deflection are crucial, like in advanced manufacturing equipment.

The chrome steel rings offer strength, while the ceramic balls add durability. A well-rounded bearing for challenging applications that demand both precision and endurance.

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Product Parameters

  • Part Number S71920 CD/HCP4AQBCA
  • 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 80 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 26
  • Contact Angle 15°
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 35775 lbf
  • Static Radial Load 59625 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 2.73 kg
Super Precision Angular Contact Ball Bearings S71920 CD/HCP4AQBCA dimension drawing
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Features

How Does S71920 CD/HCP4AQBCA Bearing Achieve Super Precision?

S71920 CD/HCP4AQBCA Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
The ceramic balls and chrome steel rings ensure minimal friction and enhanced durability.
With a dynamic radial load capacity of 35775 lbf, it handles demanding conditions effortlessly.
Its sealed design and grease lubrication maintain performance, even at speeds up to 16,250 rpm.

What Makes S71920 CD/HCP4AQBCA Bearing Suitable for High-Speed Applications?

S71920 CD/HCP4AQBCA Bearing is designed with phenolic cages and ceramic balls, reducing weight and friction.
The extra-light preload (Class A) ensures smooth operation, ideal for precision machinery.
It operates efficiently within a temperature range of -30°C to 110°C, maintaining reliability.
With a tolerance class of P4A, it delivers consistent accuracy in high-speed environments.

Engineered for Precision: S71920 CD/HCP4AQBCA Bearing

S71920 CD/HCP4AQBCA Bearing’s matched set of four bearings (QBC arrangement) ensures balanced load distribution.
The 26 ceramic balls and 12.7 mm ball diameter contribute to its high-speed capability.
Its sealed design protects against contaminants, extending service life.
The static radial load capacity of 59625 lbf highlights its robustness in precision applications.

Application

Super Precision Angular Contact Ball Bearings S71920 CD/HCP4AQBCA excels in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The sealed design keeps contaminants out, extending service life in demanding environments.

In robotics, S71920 CD/HCP4AQBCA provides the accuracy needed for precise joint movements, thanks to its P4A tolerance class. The extra-light preload ensures minimal resistance, ideal for repetitive tasks.

For aerospace applications, S71920 CD/HCP4AQBCA handles both radial and axial loads efficiently, making it suitable for flight control systems. Its temperature range of -30°C to 110°C ensures reliability under varying conditions.

Automotive testing equipment benefits from S71920 CD/HCP4AQBCA’s matched arrangement, which maintains alignment under heavy loads. The grease lubrication reduces maintenance needs, perfect for long-duration testing cycles.

In medical imaging devices, S71920 CD/HCP4AQBCA’s quiet operation and precision enhance diagnostic accuracy. The chrome steel rings and ceramic balls offer durability without compromising performance.

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