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Super Precision Angular Contact Ball Bearings S7208 CD/HCP4A

Super Precision Angular Contact Ball Bearings S7208 CD/HCP4A

The S7208 CD/HCP4A is a super precision angular contact ball bearing, measuring 40mm by 80mm by 18mm, crafted from durable chrome steel with ceramic balls. It handles radial loads up to 7605 lbf and spins smoothly at speeds up to 22,000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under angular loads, while the sealed design keeps lubrication intact for longer periods. The bearing operates efficiently in temperatures ranging from -30°C to 110°C.

With a P4 tolerance class (equivalent to ABEC-7), it offers high precision for demanding applications. Ideal for use in machine tools, spindles, or other high-speed equipment where accuracy is crucial.

Weighing 0.33kg, it’s a robust yet lightweight option for precision engineering needs. This model is interchangeable with SKF bearings, making replacements straightforward.

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Product Parameters

  • Part Number S7208 CD/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 14
  • Contact Angle 15°
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 7605 lbf
  • Static Radial Load 5400 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 22000 rpm
  • Weight 0.33 kg
  • Price（$） 286.155
Super Precision Angular Contact Ball Bearings S7208 CD/HCP4A dimension drawing
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Features

Why Choose S7208 CD/HCP4A Bearing for Precision Tasks?

S7208 CD/HCP4A Bearing features a 15° contact angle, ideal for high-precision angular contact applications.
Its ceramic balls and chrome steel rings ensure smooth operation with minimal friction.

The phenolic cage in S7208 CD/HCP4A Bearing enhances durability and reduces wear under dynamic radial loads.
With a maximum speed of 22,000 rpm, it delivers reliable performance in demanding conditions.

S7208 CD/HCP4A Bearing is lubricated for long-term use, reducing maintenance needs.
Its P4 tolerance class guarantees precision, making it suitable for high-accuracy machinery.

Application

Ideal for Precision: S7208 CD/HCP4A Bearing
S7208 CD/HCP4A Bearing is commonly used in high-speed machine tools, where its angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it suitable for prolonged operations.

In robotics, S7208 CD/HCP4A Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage and sealed design. This helps maintain performance in dusty or humid environments.

For medical imaging devices, S7208 CD/HCP4A Bearing’s P4 tolerance class ensures minimal vibration, crucial for clear scans. The chrome steel rings add durability without compromising precision.

Automotive vs Aerospace: Applications of S7208 CD/HCP4A Bearing
In automotive systems, S7208 CD/HCP4A Bearing supports electric motor shafts, handling both radial and axial loads efficiently. Its lubricated design extends service life even under constant use.

Aerospace applications benefit from S7208 CD/HCP4A Bearing’s lightweight ceramic balls, which reduce overall component weight. The high-speed capability makes it ideal for turbine assemblies.

Where Is S7208 CD/HCP4A Bearing Used?
You’ll find S7208 CD/HCP4A Bearing in 3D printers, where its precision ensures smooth layer deposition. The sealed design keeps out dust, maintaining print quality over time.

In conveyor systems, S7208 CD/HCP4A Bearing handles moderate loads while maintaining alignment. Its phenolic cage resists wear, reducing maintenance needs in industrial settings.

Q&A

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