SR144TiZ is listed as a high-speed dental handpiece bearing under H&Q P/N GS-A4. Its current verified dimensions are 3.175 mm × 6.35 mm × 2.38 mm in ID × OD × Width order.
Verified Specifications
| Model | SR144TiZ |
|---|---|
| H&Q P/N | GS-A4 |
| Product type | high-speed dental handpiece bearing |
| Bore / ID | 3.175 mm |
| Outer Diameter / OD | 6.35 mm |
| Width | 2.38 mm |
| Precision Grade | P4 |
| Source speed marking | >400,000 RPM |
| Ball Material | AISI 440C Stainless Steel |
| Cage Material | Phenolic |
| Shield Configuration | One Shield |
| Outer Ring Profile | Smooth |
What Distinguishes SR144TiZ
The current SKU record identifies a smooth outer-ring profile, AISI 440C Stainless Steel balls, a Phenolic cage and a one-shield configuration. These fields distinguish SR144TiZ within the current H&Q high-speed bearing records; they do not by themselves confirm handpiece compatibility.
Identification Before Ordering
Confirm the exact SR144TiZ marking, H&Q P/N GS-A4, Bore / ID, Outer Diameter / OD and width, the smooth outer-ring profile. Also compare the shield or open configuration and any flange, groove or step visible on the removed bearing. A shared dimension does not establish interchangeability. Compatibility must be confirmed for the exact handpiece and turbine or assembly version.
Information to Send for RFQ Review
Send clear front, side and marking photos of the removed bearing, the measured ID, OD and width, and the rotor, turbine or assembly reference when available. H&Q can then review the submitted information for identification and quotation.
Technical resources: dental bearing products, high-speed bearing hub, SR144 bearing guide, bearing size chart, bearing cross-reference and bearing identification.
Request Bearing Identification or a Technical Quote
No specific handpiece compatibility is claimed on this page. Confirm fit from the exact model, dimensions and construction evidence before ordering.
