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Super Precision Angular Contact Ball Bearings S7208 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings S7208 CDGA/HCP4A

The S7208 CDGA/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It features ceramic balls and a phenolic cage for smooth operation at high speeds.

With a 15° contact angle, it handles radial loads up to 7605 lbf and spins up to 41,000 RPM. The sealed design keeps grease in place, reducing maintenance needs while operating between -30°C to 110°C.

Its extra light preload (Class A) ensures minimal friction, ideal for precision applications. The bearing comes in pairs, suitable for back-to-back, face-to-face, or tandem arrangements.

Perfect for CNC spindles or high-speed machinery where accuracy is crucial. Weighing 0.33kg, it meets P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number S7208 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 14
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 7605 lbf
  • Static Radial Load 5400 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.33 kg
Super Precision Angular Contact Ball Bearings S7208 CDGA/HCP4A dimension drawing
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Features

Performance Features of S7208 CDGA/HCP4A Bearing

S7208 CDGA/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

The ceramic balls reduce friction, allowing for smoother operation at high speeds up to 41,000 rpm.

Its phenolic cage ensures stability and durability, even under dynamic radial loads of 7605 lbf.

With a precision tolerance class of P4A, it delivers consistent performance in demanding conditions.

How Is S7208 CDGA/HCP4A Bearing Engineered for Reliability?

S7208 CDGA/HCP4A Bearing features chrome steel rings and ceramic balls, enhancing its resistance to wear.

The sealed design protects against contaminants, making it suitable for various environments.

Its extra light preload ensures minimal friction, contributing to longer service life.

The bearing’s universal matching capability allows flexible arrangement options for different applications.

Engineered for Precision: S7208 CDGA/HCP4A Bearing

S7208 CDGA/HCP4A Bearing’s precision-ground rings ensure accurate performance in high-speed applications.

The ceramic balls and phenolic cage work together to reduce heat generation and noise.

With a static radial load capacity of 5400 lbf, it handles demanding conditions with ease.

Its compact size and lightweight design make it ideal for space-constrained installations.

Steel vs Ceramic Bearings: Strengths of S7208 CDGA/HCP4A Bearing

S7208 CDGA/HCP4A Bearing combines chrome steel rings with ceramic balls for superior performance.

This hybrid design offers reduced friction and increased durability compared to all-steel bearings.

The ceramic balls resist wear and perform well in high-temperature environments up to 110°C.

Its grease lubrication ensures smooth operation, even at maximum speeds.

Application

Industrial Uses of S7208 CDGA/HCP4A Bearing
S7208 CDGA/HCP4A Bearing is commonly used in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup.
The sealed design keeps contaminants out, ensuring long-lasting performance in demanding industrial environments.

Where Is S7208 CDGA/HCP4A Bearing Used?
In automotive applications, S7208 CDGA/HCP4A Bearing supports precision components like turbochargers and transmission systems.
Its angular contact design handles combined radial and axial loads efficiently, making it ideal for high-performance vehicles.

Perfect Fit for Automation: S7208 CDGA/HCP4A Bearing
S7208 CDGA/HCP4A Bearing excels in robotic arms and CNC machines, where its P4A tolerance class ensures accurate positioning.
The extra light preload allows for smooth, vibration-free operation in automated production lines.

Medical vs Industrial: Where S7208 CDGA/HCP4A Bearing Excels
In medical imaging devices, S7208 CDGA/HCP4A Bearing provides quiet and reliable operation due to its ceramic ball construction.
For industrial uses, its high-speed capability and grease lubrication make it suitable for precision grinding equipment.

Key Fields for S7208 CDGA/HCP4A Bearing
S7208 CDGA/HCP4A Bearing is a popular choice for aerospace applications, such as helicopter rotor systems.
Its ability to handle extreme speeds and temperatures ensures dependable performance in critical flight components.

Q&A

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