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Super Precision Angular Contact Ball Bearings S71924 ACB/P4A

Super Precision Angular Contact Ball Bearings S71924 ACB/P4A

The S71924 ACB/P4A is a super precision angular contact ball bearing with a 120mm bore and 165mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 5738 lbf and operates smoothly at speeds up to 9000 RPM.

Its sealed design keeps lubrication in and contaminants out, while the phenolic cage ensures quiet, efficient performance. The 25° contact angle makes it ideal for handling combined radial and axial loads.

This bearing is interchangeable with SKF models, offering a reliable replacement option. Perfect for high-precision applications like machine tool spindles or robotics, where accuracy and durability are key.

Weighing 1.31kg, it’s robust yet manageable for its size. Compliant with P4 tolerance standards, it ensures exceptional precision in demanding environments.

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Product Parameters

  • Part Number S71924 ACB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 120 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 165 mm
  • Outer Dia Tolerance -0.01mm to 0
  • Width 22 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 8.731 mm
  • Ball Qty 41
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 5738 lbf
  • Static Radial Load 6412 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 9000 rpm
  • Weight 1.31 kg
  • Price（$） 1817.55
Super Precision Angular Contact Ball Bearings S71924 ACB/P4A dimension drawing
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Features

Performance Features of S71924 ACB/P4A Bearing

S71924 ACB/P4A Bearing is crafted 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.

With a dynamic radial load capacity of 5738 lbf, it handles demanding conditions reliably.

The P4 tolerance class guarantees high precision, making it suitable for critical operations.

How Is S71924 ACB/P4A Bearing Engineered for Reliability?

S71924 ACB/P4A Bearing features sealed design, protecting against contaminants and extending service life.

Its matched arrangement and preload options enhance stability in high-speed applications.

The bearing operates smoothly at up to 9,000 rpm, maintaining performance within -30° to 110°C.

Lubrication is pre-applied, ensuring immediate readiness and reducing initial maintenance.

Built for Precision: S71924 ACB/P4A Bearing

S71924 ACB/P4A Bearing’s 41 chrome steel balls and precise ball diameter of 8.731 mm ensure balanced operation.

Its static radial load capacity of 6412 lbf provides robustness for heavy-duty applications.

The phenolic cage material offers excellent heat resistance and reduces wear over time.

With ABEC-7 tolerance, it delivers exceptional accuracy for super precision tasks.

Steel vs Ceramic Bearings: Strengths of S71924 ACB/P4A Bearing

S71924 ACB/P4A Bearing uses chrome steel for rings and balls, offering a cost-effective yet durable solution.

Its phenolic cage combines lightweight properties with high strength, outperforming many alternatives.

The bearing’s sealed design ensures protection in harsh environments, unlike open ceramic options.

With a temperature range of -30° to 110°C, it suits diverse industrial applications.

Application

How Does S71924 ACB/P4A Bearing Improve Performance?
S71924 ACB/P4A Bearing excels in high-speed machine tools, where its 25° contact angle ensures precise radial and axial load handling. The sealed design keeps lubrication intact, reducing maintenance needs in demanding environments.

In robotics, S71924 ACB/P4A Bearing supports articulated arms with smooth, low-friction rotation. Its phenolic cage dampens vibrations, making it ideal for automated assembly lines where accuracy is key.

For aerospace applications, S71924 ACB/P4A Bearing’s P4 tolerance class guarantees reliability in navigation systems. The chrome steel construction withstands extreme temperatures without compromising performance.

Q&A

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