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Super Precision Angular Contact Ball Bearings S7211 CDGA/P4A

Super Precision Angular Contact Ball Bearings S7211 CDGA/P4A

The S7211 CDGA/P4A is a super precision angular contact ball bearing with a 55mm bore and 100mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 12442 lbf and operates smoothly at speeds up to 39000 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The bearing works in temperatures from -30°C to 110°C, making it versatile for various environments.

With a 15° contact angle and extra light preload, it offers precise motion control. Ideal for high-speed applications like machine tool spindles or precision instruments where accuracy is key.

Weighing 0.62kg, it’s robust yet manageable. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement. Suitable for matched sets in back-to-back, face-to-face, or tandem arrangements.

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Product Parameters

  • Part Number S7211 CDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 21 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 15
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 12442 lbf
  • Static Radial Load 9675 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 39000 rpm
  • Weight 0.62 kg
Super Precision Angular Contact Ball Bearings S7211 CDGA/P4A dimension drawing
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Features

Performance Features of S7211 CDGA/P4A Bearing

S7211 CDGA/P4A Bearing is designed with a 15° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel construction ensures durability and resistance to wear in high-speed applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 39,000 rpm, it excels in precision tasks requiring high rotational accuracy.

S7211 CDGA/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its sealed design protects against contaminants, ensuring consistent performance in various environments.

The extra light preload (Class A) minimises vibration, making it suitable for sensitive applications.
Its dynamic radial load capacity of 12,442 lbf ensures reliability under demanding conditions.

Application

Key Fields for S7211 CDGA/P4A Bearing
S7211 CDGA/P4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, extending service life in demanding workshop conditions.

How Does S7211 CDGA/P4A Bearing Support High-Speed Operations?
In CNC machining centres, S7211 CDGA/P4A Bearing handles rapid tool changes with its extra light preload and P4A tolerance class. The phenolic cage dampens vibrations, contributing to smoother surface finishes on workpieces.

Built for Heavy-Duty Use: S7211 CDGA/P4A Bearing
This bearing’s chrome steel construction makes it suitable for industrial gearboxes that undergo constant directional loads. Its 15° contact angle effectively manages combined radial and thrust forces in power transmission systems.

Medical vs Industrial: Where S7211 CDGA/P4A Bearing Excels
While S7211 CDGA/P4A Bearing performs well in medical centrifuges due to its low vibration, it truly shines in paper mill rollers where grease lubrication withstands humid environments. The universal matching capability allows flexible mounting in various configurations.

Practical Applications of S7211 CDGA/P4A Bearing
For robotics arms requiring precise motion control, S7211 CDGA/P4A Bearing offers reliable angular contact performance. The temperature range from -30°C to 110°C ensures stability across different operating conditions.

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