| Model | S681 |
| Part Number | DS-1A |
| ID×OD×width | 1×3×1 mm |
| Speed | >30,000 RPM |
How to select this bearing
DS series low-speed micro motor bearings designed for precision applications. Featuring 1mm bore group and 440C Stainless Steel balls with open configuration.
Specification Source and Limits
Product reference: DS-1A. Source: manufacturer product catalog supplied to DENTORQUE, page 8, panel R1C1.
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-1A, page 8, panel R1C1. Read our fitment evidence standard before treating a candidate as a confirmed replacement.

