Product specifications
| Model | SR155k |
| Part Number | DS-3N |
| ID×OD×width | 3.96×7.938×2.78 mm |
| Configuration | Radial — Stepped outer ring |
| Shields | Open |
How to select this bearing
DS low-speed 3.96mm bore group + 440C Stainless Steel balls + open configuration
Specification Source and Limits
Product reference: DS-3N. Source: manufacturer product catalog supplied to DENTORQUE, page 9, panel R2C2.
The source file is titled 轴承2026产品资料.pdf. A controlled revision and publication date are not stated in the supplied catalog; the year in its filename is not an issue-date verification.
Catalog markings are source information, not an independent test report or confirmation of compatibility with a specific handpiece. Exact geometry, assembly version and operating requirements still need to be confirmed for your application.
For questions about this source, contact DENTORQUE and quote DS-3N, page 9, panel R2C2. Read our fitment evidence standard before treating a candidate as a confirmed replacement.
