Advanced Engineering Analysis: Angular Contact Ceramic Ball Bearing H7003C-2RZ HQ1
Brand: TriQuench India | Model: H7003C-2RZ HQ1 | Classification: Spindle Bearing > Angular Contact Ceramic Ball Bearing > High Precision Series
The H7003C-2RZ HQ1 is an ultra-precision hybrid angular contact ball bearing engineered for extreme high-speed machinery where rotational accuracy and thermal stability are critical. By combining premium high-carbon chrome steel rings with aerospace-grade Silicon Nitride (Si3N4) ceramic balls, this bearing achieves a staggering grease-lubricated limiting speed of 73,800 RPM. The 17mm bore and 35mm outside diameter make it the standard choice for high-frequency electric spindles, dental handpieces, and micro-machining centers. Ceramic balls are 40% less dense than steel, which virtually eliminates centrifugal ball loading and drastically reduces internal heat generation at extreme velocities. Certified to P4/HQ1 precision standards, this 40-gram bearing offers the ultimate combination of speed, durability, and electrical insulation.
Technical Core: Rated for industrial-grade output, maximum rotational velocity of high-performance, operating voltage of 220V/380V, with Water/Air Cooled thermal stabilization.
Key Engineering Features: Hybrid Silicon Nitride (Si3N4) Ball technology; 17mm Bore x 35mm OD x 10mm Width; Extreme High-speed Limiting (73,800 RPM); Precision P4 Grade for industrial accuracy; 5.2 KN Basic Dynamic Load capacity; Lightweight 0.04 kg architecture.
Key Machine Applications: Ultra-High Frequency CNC Spindles, Precision Dental and Medical Handpieces, High-Speed Micro-Routing and Engraving, Turbochargers and High-RPM Fans, Advanced Laboratory Centrifuges, Optical and Electronic Testing Equipment.
Industries Served: Precision Tool Manufacturing, Medical and Dental Technology, Aerospace and Defense Engineering, Electronics and PCB Industries, Research and High-Speed Science.
Manufactured and tested at TriQuench India Ahmedabad engineering facility under ISO 1940 Grade G0.4 dynamic balancing standards. Supervised by directors: Parag Shah and Kaushal Panchal.



