Angular Contact Steel Ball Bearing 7014AC-2RZ DBB
The Angular Contact Steel Ball Bearing 7014AC-2RZ DBB is a high-performance industrial component specifically engineered for mid-to-large bore spindle assemblies. Featuring a 70mm inside diameter and a 110mm outside diameter, this bearing is built from premium hardened chrome steel to ensure maximum rigidity under simultaneous radial and axial loads. The 'AC' contact angle is optimized for superior thrust capacity, making it an essential choice for VMC spindles and heavy-duty industrial motors. Its 2RZ double rubber non-contact seals allow for an impressive grease-lubricated limiting speed of 15,500 RPM while providing a reliable barrier against dust and industrial contaminants. Certified to P4 precision standards, it delivers the rotational accuracy and vibration-free performance required for high-finish machining.
- Hardened high-carbon chrome steel rings and balls
- 70mm Bore x 110mm OD x 20mm Width
- 2RZ non-contact rubber seals for thermal efficiency
- Optimized AC contact angle for enhanced axial stiffness
- Limiting speed of 15,500 RPM (Grease Lubrication)
- P4 Precision grade for industrial machining accuracy
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 0.61 kg | sealingType: 2RZ (Double non-contact seal) | precisionClass: P4 / DBB |
| INSIDE DIAMETER | 70 mm |
| OUTSIDE DIAMETER | 110 mm |
| WIDTH DIMENSION | 20 mm |
| MAX SPEED GREASE | 15500 RPM |
| BASIC LOAD RATING CR | 22.6 KN |
| BASIC LOAD RATING COR | 20.1 KN |
| BEARING TYPE | Angular Contact Steel Ball |
| BALL MATERIAL | Hardened Chrome Steel (GCR15) |
| RING MATERIAL | High-Carbon Steel |
Industrial Applications
| Usage Scenario | Target Industry |
|---|---|
| High-Precision CNC Spindle Assemblies | Machine Tool Manufacturing |
| Industrial Electric Motors and Generators | Automotive and Engineering Production |
| Vertical and Horizontal Machining Center Spindles | Aerospace and Defense Machining |
| Precision Grinding and Milling Machine Spindles | Industrial Automation and Robotics |
| Automotive Powertrain and High-Speed Machinery | General Precision Engineering |
| Industrial Gearboxes and Power Transmissions | General Engineering |
Technical FAQ & Operational Guide
What is the speed limit for the 7014AC-2RZ DBB bearing?
This precision bearing is designed for a grease-lubricated limiting speed of up to 15,500 RPM.
How does the AC contact angle benefit this 70mm bore model?
The AC contact angle provides higher axial stiffness, allowing the spindle to handle significant thrust loads during heavy machining without compromising rotational precision.
What are the exact dimensions for the 7014 model?
The 7014AC-2RZ DBB has an inside diameter of 70mm, an outside diameter of 110mm, and a width of 20mm.
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