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Super Precision Angular Contact Ball Bearings 7008 ACD/P4AQGB

Super Precision Angular Contact Ball Bearings 7008 ACD/P4AQGB

The 7008 ACD/P4AQGB is a super precision angular contact ball bearing with a 40mm bore and 68mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 9518 lbf and operates smoothly at speeds up to 56,000 RPM.

With a 25° contact angle and universal matching design, it offers excellent stability for angular loads. The phenolic cage ensures durability while keeping the bearing lightweight at just 0.77kg.

This bearing comes pre-lubricated and works in temperatures from -30°C to 110°C. Its P4A tolerance class guarantees high precision for demanding applications.

Ideal for machine tools or high-speed spindles, it’s available in matched sets of four for versatile mounting options (back-to-back, face-to-face, or tandem). Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7008 ACD/P4AQGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 60 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 18
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 9518 lbf
  • Static Radial Load 9338 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.77 kg
Super Precision Angular Contact Ball Bearings 7008 ACD/P4AQGB dimension drawing
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Features

Performance Features of 7008 ACD/P4AQGB Bearing

7008 ACD/P4AQGB Bearing is crafted with chrome steel rings and balls, offering high precision and durability.
Its 25° contact angle ensures optimal load distribution, making it ideal for angular contact applications.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 9518 lbf, it handles demanding tasks efficiently.

How Does 7008 ACD/P4AQGB Bearing Achieve High-Speed Performance?

7008 ACD/P4AQGB Bearing supports speeds up to 56,000 rpm, thanks to its precision-engineered design.
The open seal type allows for effective lubrication, ensuring smooth operation at high speeds.
Its universal matching feature enables flexible arrangements like back-to-back or face-to-face.
The light preload (Class B) further enhances stability and reduces vibration.

Designed for Precision: 7008 ACD/P4AQGB Bearing

7008 ACD/P4AQGB Bearing meets P4A tolerance class, ensuring exceptional accuracy for precision applications.
The chrome steel construction resists wear, maintaining performance over time.
With 18 balls of 7.938 mm diameter, it balances load capacity and speed.
Its temperature range of -30°C to 110°C suits various operating environments.

Chrome Steel vs Phenolic Cage: Strengths of 7008 ACD/P4AQGB Bearing

7008 ACD/P4AQGB Bearing combines chrome steel rings with a phenolic cage for reliable performance.
The chrome steel provides strength, while the phenolic cage reduces friction and noise.
This combination ensures longevity and efficiency in high-speed applications.
The bearing’s universal matching capability adds versatility for different setups.

Application

Common Applications of 7008 ACD/P4AQGB Bearing
7008 ACD/P4AQGB Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The universal matching design allows for flexible arrangements in complex machinery setups.

In robotics, 7008 ACD/P4AQGB Bearing supports smooth movement in articulated arms and joints, thanks to its light preload and phenolic cage. Its high-speed capability makes it ideal for automated production lines.

For aerospace applications, 7008 ACD/P4AQGB Bearing’s P4A tolerance class provides the precision needed in flight control systems. The chrome steel construction ensures durability under varying temperatures and loads.

Medical imaging devices benefit from 7008 ACD/P4AQGB Bearing’s low friction and consistent performance. The open design allows for easy lubrication, extending service life in critical equipment.

In electric motors, 7008 ACD/P4AQGB Bearing handles high rotational speeds while maintaining stability. Its metric sizing ensures compatibility with a range of motor designs across different industries.

Q&A

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