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Super Precision Angular Contact Ball Bearings 7040 CD/P4ADBA

Super Precision Angular Contact Ball Bearings 7040 CD/P4ADBA

The 7040 CD/P4ADBA is a super precision angular contact ball bearing with a 200mm bore and 310mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 109800 lbf and operates smoothly at speeds up to 16250 RPM.

Its 15° contact angle and matched arrangement (2 bearings DB) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and durability, while the extra light preload enhances precision.

This bearing is lubricated for long service life and works in temperatures from -30°C to 110°C. With a P4A tolerance class, it meets high accuracy requirements.

Ideal for machine tools or high-speed spindles where precision and reliability are crucial. Weighing 24.6kg, it’s robust yet designed for performance in demanding applications. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7040 CD/P4ADBA
  • 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 102 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 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 109800 lbf
  • Static Radial Load 172125 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 24.6 kg
Super Precision Angular Contact Ball Bearings 7040 CD/P4ADBA dimension drawing
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Features

Performance Features of 7040 CD/P4ADBA Bearing

7040 CD/P4ADBA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high radial loads up to 109,800 lbf.

The phenolic cage maintains ball alignment, reducing friction and extending service life.
With a maximum speed of 16,250 rpm, it delivers reliable performance in high-speed operations.

7040 CD/P4ADBA Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its precision P4A tolerance class ensures consistent performance in demanding conditions.

The matched arrangement of two bearings (DB) provides stability and balanced load handling.
Extra light preload (Class A) minimises friction while maintaining precision.

Weighing 24.6 kg, 7040 CD/P4ADBA Bearing is robust yet designed for smooth operation.
Its open seal type allows for easy lubrication and maintenance.

Application

Common Applications of 7040 CD/P4ADBA Bearing
In machine tools, 7040 CD/P4ADBA Bearing is widely used for spindle support due to its high precision and angular contact design. The matched arrangement ensures stability during high-speed operations, making it suitable for demanding industrial environments.

Where Is 7040 CD/P4ADBA Bearing Used?
You’ll often find 7040 CD/P4ADBA Bearing in aerospace applications, where its extra-light preload and P4A tolerance class meet strict performance requirements. Its phenolic cage also helps reduce friction, which is crucial for long-duration flights.

Built for Heavy-Duty Use: 7040 CD/P4ADBA Bearing
This bearing excels in heavy machinery like turbines, handling both radial and axial loads with ease. The chrome steel construction ensures durability, even under extreme operating conditions.

Automotive vs Aerospace: Applications of 7040 CD/P4ADBA Bearing
In automotive systems, 7040 CD/P4ADBA Bearing supports high-performance gearboxes, while in aerospace, it’s trusted for critical rotor assemblies. The metric sizing and open design make it versatile across industries.

Perfect Fit for Automation: 7040 CD/P4ADBA Bearing
Robotic arms and CNC machines benefit from 7040 CD/P4ADBA Bearing’s precision and low friction. The lubricated design ensures smooth movement, reducing maintenance needs in automated production lines.

Q&A

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