7020 FE/HCP4ALQBCA

• 7020: Standard bore diameter (100 mm) and series designation.
• FE: Indicates a filled phenolic resin cage, suitable for high-speed operation.
• HC: Denotes the use of Hybrid Ceramic balls (Silicon Nitride).
• P4A: Specifies a super-precision tolerance class with restricted width tolerance.
• L: Indicates a light preload applied to the bearing set.
• QBC: Identifies the bearing as part of a Quadruplex Back-to-Back matched set.
• A: Designates an Extra Light preload class.

High Rigidity & Stability: The quadruplex back-to-back arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, essential for maintaining precision under combined loads.

Enhanced Speed & Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a phenolic cage allows for a high limiting speed of 15,000 rpm. This hybrid ceramic design also reduces friction and heat generation.

Precision & Accuracy: Manufactured to P4A tolerance class, this bearing ensures minimal runout and precise rotational accuracy. The controlled bearing dimensions (bore, OD, width) with tight tolerances guarantee consistent performance in precision assemblies.

Optimized Load Capacity: With a dynamic load rating of 26,325 lbf and a static load rating of 35,100 lbf, it offers reliable performance in applications with significant radial and axial forces. The 18° contact angle is optimized for supporting substantial axial loads.

This high-precision bearing is engineered for the most demanding applications, including:

• High-Speed Machine Tool Spindles
• Precision Grinding Spindles
• High-Frequency Machining Centers
• Advanced Robotics and Automation Systems
• Medical and Dental Equipment Spindles
• Aerospace Test and Measurement Equipment