6704 Thin-section Bearing
6704 belongs to the metric 67 series thin-section deep groove ball bearing family. Its common size is 20x27x4mm for compact precision equipment.

Specifications
| Model | 6704 |
|---|---|
| Size | 20x27x4mm |
| Series | Metric thin-section deep groove ball bearing, 67 series |
| Material | GCr15 bearing steel / stainless steel |
| Sealing | Open / ZZ / 2RS, to be specified |
| Applications | Precision instruments, robot joints, semiconductor equipment, medical imaging equipment, aviation instruments |
Selection Notes
- 6704 is suitable for compact structures that require a thin bearing section.
- Use GCr15 bearing steel for common environments and confirm stainless steel when anti-rust performance is needed.
- Specify open, ZZ or 2RS according to protection, resistance and maintenance needs.
- Confirm mounting space, speed, load, suffix and document requirements before ordering.
Before Ordering
6704 can be supplied according to order requirements in GCr15 bearing steel or stainless steel, with the required sealing structure.
