Angular Contact Steel Ball Bearing 7002C-2RZ DBB
The Angular Contact Steel Ball Bearing 7002C-2RZ DBB is a precision-engineered component designed to handle demanding industrial conditions. With an inside diameter of 15mm and an ultra-high limiting speed of 68100 RPM (grease), this bearing is optimized for high-speed CNC machines and robotic arm joints. Made from high-grade hardened steel, it provides exceptional durability and rigidity while supporting both radial and axial loads. The 2RZ non-contact seals ensure low friction and protection against contaminants without sacrificing speed.
- High-speed 7002C series steel balls
- Optimized contact angle for axial/radial load support
- Non-contact 2RZ seals for thermal stability
- Precision ground steel rings for low runout
- Compact 15x32x9mm design for space-sensitive integrations
- High-precision DBB configuration compatibility
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: 2.2 kg | sealingType: 2RZ (Non-contact seal) | precisionClass: P4 / DBB |
| INSIDE DIAMETER | 15 mm |
| OUTSIDE DIAMETER | 32 mm |
| WIDTH DIMENSION | 9 mm |
| MAX SPEED GREASE | 68100 RPM |
| BASIC LOAD RATING CR | 4.4 KN |
| BASIC LOAD RATING COR | 2.2 KN |
| BEARING TYPE | Angular Contact Steel Ball |
| BALL MATERIAL | High-Carbon Steel |
| RING MATERIAL | Hardened Chrome Steel |
Industrial Applications
| Usage Scenario | Target Industry |
|---|---|
| High-Speed CNC Spindles | Automotive Manufacturing |
| Industrial Robotics and Automation | Aerospace & Defense |
| Automotive Precision Components | CNC Machinery Builders |
| High-Speed Electric Motors | Robotics & Mechatronics |
| Machine Tool Rotating Assemblies | Precision Engineering Workshops |
| Precision Laboratory Equipment | General Engineering |
Technical FAQ & Operational Guide
What is the limiting speed for the 7002C-2RZ DBB bearing?
This bearing is designed for extreme high-speed applications, featuring a limiting speed of 68100 RPM with grease lubrication.
Can this bearing handle both axial and radial loads?
Yes, its angular contact design allows it to support both radial and axial loads simultaneously, making it highly versatile for spindle applications.
What does the 2RZ designation indicate?
2RZ refers to non-contact seals on both sides of the bearing, which protect the internal components from dust while allowing for ultra-high speeds without generating excessive heat.
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