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Super Precision Angular Contact Ball Bearings 7040 CDGA/P4A

Super Precision Angular Contact Ball Bearings 7040 CDGA/P4A

The 7040 CDGA/P4A is a super precision angular contact ball bearing with a 200mm bore and 310mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for angular contact loads, handling up to 66600 lbf dynamically.

Its phenolic cage ensures smooth operation at speeds up to 16250 RPM, while the open design allows for easy lubrication. The bearing operates efficiently in temperatures ranging from -30°C to 110°C.

With a P4A tolerance class, this bearing offers exceptional precision and is interchangeable with SKF models. It’s ideal for high-speed applications like machine tool spindles or precision equipment.

Weighing 12.3kg, it’s robust yet suitable for matched sets in back-to-back, face-to-face, or tandem arrangements. Compliant with universal matching standards, it’s a versatile choice for demanding setups.

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Product Parameters

  • Part Number 7040 CDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 310 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 51 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 34.925 mm
  • Ball Qty 21
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 66600 lbf
  • Static Radial Load 87750 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 12.3 kg
Super Precision Angular Contact Ball Bearings 7040 CDGA/P4A dimension drawing
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Features

Performance Features of 7040 CDGA/P4A Bearing

7040 CDGA/P4A Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 66,600 lbf, it suits demanding applications.

7040 CDGA/P4A Bearing operates smoothly at speeds up to 16,250 rpm, balancing speed and reliability.
Its open design and lubrication ensure consistent performance in various conditions.

The P4A tolerance class guarantees precise operation, making it ideal for high-accuracy machinery.
Weighing 12.3 kg, it offers a robust solution without compromising on precision.

Application

Industrial Uses of 7040 CDGA/P4A Bearing
The 7040 CDGA/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. Its phenolic cage and chrome steel construction provide stability during high-speed operations.

In robotics, 7040 CDGA/P4A Bearing supports articulated arms, offering smooth movement and reliable load handling. The extra light preload makes it suitable for applications requiring minimal friction.

For aerospace components, 7040 CDGA/P4A Bearing’s P4A tolerance class ensures consistent performance in critical systems. Its ability to handle both radial and axial loads makes it versatile for various aircraft mechanisms.

Automotive vs Aerospace: Applications of 7040 CDGA/P4A Bearing
In automotive systems, 7040 CDGA/P4A Bearing is often found in performance gearboxes, where precision and durability are key. The metric sizing and universal matching options simplify integration.

For aerospace, this bearing excels in landing gear mechanisms, thanks to its high dynamic load capacity. The temperature range also allows for reliable operation in diverse conditions.

Q&A

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