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Super Precision Angular Contact Ball Bearings 7040 CD/P4A

Super Precision Angular Contact Ball Bearings 7040 CD/P4A

The 7040 CD/P4A 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 66600 lbf and operates smoothly at speeds up to 6700 RPM.

With a 15° contact angle and phenolic cage, it offers stable performance under angular loads. The open design allows for easy lubrication, extending its service life.

This bearing is ideal for high-precision applications like machine tool spindles or industrial pumps. Its P4 tolerance class ensures reliable accuracy in demanding conditions.

Weighing 12.3kg, it’s built for durability while maintaining precision. Compatible with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 7040 CD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 310 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 51 mm
  • Width Tolerance -0.3mm to 0
  • Ball Dia 34.925 mm
  • Ball Qty 21
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • 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° to 110 °C
  • Max Speed 6700 rpm
  • Weight 12.3 kg
  • Price（$） 421.362
Super Precision Angular Contact Ball Bearings 7040 CD/P4A dimension drawing
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Features

Performance Features of 7040 CD/P4A Bearing

7040 CD/P4A Bearing is crafted with chrome steel rings and balls, offering high precision for angular contact applications.
Its 15° contact angle ensures optimal load distribution, enhancing performance in demanding conditions.
The phenolic cage maintains ball alignment, reducing friction and wear for smoother operation.
With a dynamic radial load capacity of 66,600 lbf, it handles heavy loads reliably.
The P4 tolerance class guarantees precision, making it suitable for high-speed applications up to 6,700 rpm.

Application

Industrial Uses of 7040 CD/P4A Bearing
7040 CD/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate radial and axial load handling. The phenolic cage material reduces friction, making it suitable for high-speed operations.

In automotive applications, 7040 CD/P4A Bearing supports components like wheel hubs and transmissions, offering reliable performance under heavy loads. Its P4 tolerance class ensures consistent operation in demanding conditions.

For automation systems, 7040 CD/P4A Bearing is ideal for robotic arms and CNC machines, thanks to its preload capability and smooth rotation. The chrome steel construction enhances durability in continuous use.

Medical imaging devices benefit from 7040 CD/P4A Bearing’s precision and low noise, ensuring reliable performance in sensitive environments. The open design allows for easy lubrication and maintenance.

In aerospace applications, 7040 CD/P4A Bearing provides stability in flight control systems, where precision and reliability are critical. Its wide temperature range makes it adaptable to various operating conditions.

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