Angular Contact Ceramic Ball Bearing H7012AC-2RZ HQ1
The H7012AC-2RZ HQ1 is a premium hybrid angular contact ball bearing engineered for high-speed, high-load industrial applications. Featuring a 60mm bore and 95mm outside diameter, this bearing integrates aerospace-grade Silicon Nitride (Si3N4) ceramic balls with high-carbon chrome steel rings. The 'AC' contact angle is specifically designed for enhanced axial load handling without sacrificing high-speed limiting capabilities, which reach 22,200 RPM with grease lubrication. Ceramic balls are significantly lighter and harder than steel, reducing centrifugal forces and internal friction while virtually eliminating the risk of adhesive wear. Certified to P4/HQ1 precision standards, this bearing provides the thermal stability and electrical insulation required for advanced CNC spindles, automotive powertrains, and precision robotics.
- Hybrid Silicon Nitride (Si3N4) Ball Architecture
- 60mm Bore x 95mm OD x 18mm Width
- 22,200 RPM Limiting Speed (Grease)
- Precision P4 Grade for industrial accuracy
- 16.2 KN Basic Dynamic Load (Cr) rating
- 2RZ High-efficiency non-contact seals
Comparative Technical Spindle Motor Configurations Matrix
Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.
| Spindle Capacity | Operating Speed | Operating Voltage | Cooling System |
|---|---|---|---|
| 12.0 kW | 18,000 RPM | 380 V | Water-Cooled |
| 0.8 kW | 24,000 RPM | 220 V | Air-Cooled (Long Shaft) |
| 3.7 kW | 40,000 RPM | 380 V | Water-Cooled ISO20 |
| 9.0 kW | 18,000 RPM | 380 V | Air-Cooled |
Technical Specifications
| Technical Parameter | Engineering Specification Value |
|---|---|
| MECHANICAL | weight: approx 0.41 kg | sealingType: 2RZ (Non-contact) | precisionClass: P4 / HQ1 |
| INSIDE DIAMETER | 60 mm |
| OUTSIDE DIAMETER | 95 mm |
| WIDTH DIMENSION | 18 mm |
| MAX SPEED GREASE | 22200 RPM |
| BASIC LOAD RATING CR | 16.2 KN |
| BASIC LOAD RATING COR | 14.4 KN |
| BEARING TYPE | Angular Contact Hybrid Ceramic |
| BALL MATERIAL | Silicon Nitride (Si3N4) |
| RING MATERIAL | High-Carbon Chrome Steel (GCR15) |
Industrial Applications
| Usage Scenario | Target Industry |
|---|---|
| High-Load CNC Spindle Assemblies | Machine Tool Manufacturing |
| Automotive Powertrains and Turbochargers | Aerospace and Defense Engineering |
| Aerospace Rotating Systems | Automotive and Performance Motorsports |
| Precision Robotics and Industrial Automation | Industrial Automation and Robotics |
| High-Frequency Induction Motors | General Precision Engineering |
| Large-Format Precision Rotating Tables | General Engineering |
Technical FAQ & Operational Guide
What is the limiting speed of the H7012AC-2RZ HQ1?
This hybrid ceramic bearing is designed for a grease-lubricated limiting speed of up to 22,200 RPM.
How does the 'AC' angle benefit high-load applications?
The 'AC' contact angle is optimized for a higher axial load capacity. Combined with the hardness of ceramic balls, it allows the bearing to handle significant thrust forces while maintaining high-speed stability.
What are the dimensions of this 60mm bearing?
The H7012AC-2RZ HQ1 features an inside diameter of 60mm, an outside diameter of 95mm, and a width of 18mm.
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