| Model | SR156zz |
|---|---|
| Part Number | DS-4K |
| ID×OD×width | 4.76×7.938×3.175 mm |
| Shields | 2 shields |
How to select this bearing
DS low-speed 4.76mm bore group + 440C Stainless Steel balls + double shields + 兄弟件号 DS-4L, DS-4M
Specification Source and Limits
Product reference: DS-4K. Source: manufacturer product catalog supplied to DENTORQUE, page 9, panel R5C2.
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-4K, page 9, panel R5C2. Read our fitment evidence standard before treating a candidate as a confirmed replacement.
