| Model | DM-940 |
| Part Number | DM-940 |
| ID×OD×width | 4×9×4 mm |
| Configuration | Radial |
| Shields | Open |
| Ball material | 440C Stainless Steel |
| Precision | P4 |
| Speed | >400,000 RPM |
How to select this bearing
DM series micro motor bearings designed for high-speed applications. Featuring 440C Stainless Steel balls and open configuration for maximum speed. Compatible with DM-1030, DM-1040, DM-1360.
Specification Source and Limits
Product reference: DM-940. Source: manufacturer product catalog supplied to DENTORQUE, page 11, panel R1C3.
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 DM-940, page 11, panel R1C3. Read our fitment evidence standard before treating a candidate as a confirmed replacement.
