SFR144TiZ1WN bearing overview
SFR144TiZ1WN is listed in the current catalog as a high-speed dental bearing under P/N GS-F4. The card identifies a 3.175 mm bore, 6.35 mm outside diameter and 2.38 mm width, plus an additional 7.5 mm profile dimension.
Verified source data
| Model | SFR144TiZ1WN |
|---|---|
| P/N | GS-F4 |
| Product type | High-speed dental bearing |
| Bore / ID | 3.175 mm |
| Outer Diameter / OD | 6.35 mm |
| Width | 2.38 mm |
| Dimension order | ID × OD × Width |
| Additional source dimension | 7.5 mm |
| Precision marking | P4 |
| Source speed marking | RPM > 400000 |
The 7.5 mm value is retained as an additional profile dimension; its feature name and function are not inferred. The speed value is retained only as the catalog marking, not a rated, maximum or guaranteed assembled-handpiece speed. P4 is not converted to an ABEC class.
Identification before ordering
Confirm the exact SFR144TiZ1WN model, GS-F4 P/N, all source dimensions and photographs of both bearing faces. The current card does not verify a handpiece brand, rotor model or replacement equivalence.
Compare verified family records in the SR144 bearing guide, use the dental bearing size chart, or submit evidence through bearing identification.
Related guidance
Review the high-speed dental bearing guide. For sourcing assistance, contact us with the SFR144TiZ1WN model, GS-F4 code, quantity and identification details.
Specification Source and Limits
Product reference: GS-F4. Source: manufacturer product catalog supplied to DENTORQUE, page 5, panel R4C1.
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 GS-F4, page 5, panel R4C1. Read our fitment evidence standard before treating a candidate as a confirmed replacement.
