<h2>Basic Info.</h2> <table> <tr><td>Inner Diameter</td><td>30 mm</td></tr> <tr><td>Outer Diameter</td><td>72 mm</td></tr> <tr><td>Width</td><td>19 mm</td></tr> <tr><td>Model NO.</td><td>30306 / 31306 / 32306</td></tr> <tr><td>Lubrication</td><td>Grease or Oil</td></tr> <tr><td>Origin</td><td>China</td></tr> </table> <h2>Introduction</h2> High-precision tapered roller bearings with P0–P2 ratings, low-vibration options (Z1V1–Z3V3), and OEM/ODM service. Designed for industrial applications requiring reliability and long service life.
| Inner Diameter | 30 mm |
| Outer Diameter | 72 mm |
| Width | 19 mm |
| Model NO. | 30306 / 31306 / 32306 |
| Lubrication | Grease or Oil |
| Origin | China |
High-precision tapered roller bearings with P0–P2 ratings, low-vibration options (Z1V1–Z3V3), and OEM/ODM service. Designed for industrial applications requiring reliability and long service life.
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