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Super Precision Angular Contact Ball Bearings S7028 ACD/P4A

Super Precision Angular Contact Ball Bearings S7028 ACD/P4A

The S7028 ACD/P4A is a super precision angular contact ball bearing with a 140mm bore and 210mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 32850 lbf and operates smoothly at speeds up to 5600 RPM.

Its 25° contact angle and sealed design ensure reliable performance in demanding conditions, while the phenolic cage offers durability. The bearing comes preloaded for immediate use and works well in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for high-precision applications like machine tools or spindle systems where accuracy is key.

Weighing 3.44kg, it’s robust yet manageable for its size. Compliant with P4 tolerance standards for consistent performance.

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Product Parameters

  • Part Number S7028 ACD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 33 mm
  • Width Tolerance -0.24mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 22
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 32850 lbf
  • Static Radial Load 35100 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 5600 rpm
  • Weight 3.44 kg
  • Price（$） 286.641
Super Precision Angular Contact Ball Bearings S7028 ACD/P4A dimension drawing
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Features

Performance Features of S7028 ACD/P4A Bearing

S7028 ACD/P4A Bearing is crafted with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.
With a dynamic radial load capacity of 32,850 lbf, it performs reliably in high-demand applications.
The P4 tolerance class guarantees precision, making it suitable for tasks requiring exacting standards.

How Is S7028 ACD/P4A Bearing Engineered for Reliability?

S7028 ACD/P4A Bearing features sealed construction, protecting against contaminants and extending service life.
Its preload availability enhances stability, reducing vibration during high-speed operation.
The bearing operates smoothly up to 5,600 rpm, maintaining performance within a -30° to 110°C range.
With a static radial load capacity of 35,100 lbf, it ensures dependable performance under heavy loads.

Optimized for Efficiency: S7028 ACD/P4A Bearing

S7028 ACD/P4A Bearing’s chrome steel components resist wear, ensuring long-term reliability.
Its 22.225 mm balls and 22-ball configuration distribute loads evenly, reducing stress on individual components.
The lubricated design minimises maintenance needs while enhancing operational smoothness.
Weighing 3.44 kg, it balances strength and practicality for industrial applications.

Application

Common Applications of S7028 ACD/P4A Bearing
S7028 ACD/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In robotics, S7028 ACD/P4A Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction. Its P4 tolerance class makes it suitable for applications demanding tight precision.

For medical imaging devices like CT scanners, S7028 ACD/P4A Bearing’s chrome steel components offer reliable operation under continuous use. The lubricated design further enhances longevity in critical healthcare equipment.

Automotive testing rigs often incorporate S7028 ACD/P4A Bearing to handle combined radial and axial loads during performance evaluations. Its 25° contact angle balances speed and load capacity effectively.

In industrial pumps, S7028 ACD/P4A Bearing’s robust construction withstands high-speed rotations while maintaining stability. The metric dimensions ensure easy integration with European-engineered systems.

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