7010 ACD/P4AQBCB
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7010 ACD/P4AQBCB Bearing Product Overview & Core Advantages
The 7010 ACD/P4AQBCB is a precision quadruplex angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This P4A tolerance class bearing is pre-configured in a back-to-back quadruplex (QBC) arrangement, providing superior stability and the ability to handle significant combined loads (radial and axial) from multiple directions. Its light preload (Class B) ensures precise rotational accuracy and minimal runout, making it ideal for high-precision, high-stiffness machinery where positional integrity is paramount.
7010 ACD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
- 7010: Basic bearing series, indicating a 50mm bore and 80mm outside diameter.
- ACD: Angular Contact design with a 25° contact angle.
- P4A: Denotes an ultra-precision tolerance class exceeding standard P4 levels, ensuring extremely tight dimensional and running accuracy.
- QBC: Specifies the bearing is supplied as a Quadruplex (4 bearings) matched set in a Back-to-Back arrangement.
- B: Indicates a Light preload is applied to the matched set.
7010 ACD/P4AQBCB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The quadruplex back-to-back configuration creates a highly rigid bearing system that effectively resists moment loads and manages complex combined loads. This setup significantly enhances the overall stiffness of the spindle or shaft assembly.
Precision & High-Speed Performance: Manufactured to P4A super-precision standards, this bearing guarantees minimal vibration and exceptional running accuracy. The phenolic resin cage is lightweight and robust, contributing to smooth operation at high rotational speeds, with a limiting speed of 46,000 rpm.
Optimized Material & Design: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue life and durability. The specified 25° contact angle provides an excellent balance between radial and axial load capacity.
7010 ACD/P4AQBCB Bearing Typical Application Areas
This bearing is engineered for the most demanding precision applications, including:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Rigidity CNC Machining Centers
- Advanced Robotic Drives
- Aerospace & Defense Positioning Systems
