<ul> <li> <strong>Design Code:</strong> SF</li> <li> <strong>Inside Diameter:</strong> 280 mm</li> <li> <strong>Outside Diameter:</strong> 320 mm</li> <li> <strong>Overall Width:</strong> 20 mm</li> <li> <strong>Contact Type:</strong> Contact Seal</li> <li> <strong>Lip Material:</strong> Nitrile Rubber</li> </ul><h3>Specifications</h3><table><tbody> <tr> <td>Part Number</td> <td>28032020SF</td> </tr> <tr> <td>Brand</td> <td>DDS</td> </tr> <tr> <td>Item</td> <td>Rotary Shaft Seal</td> </tr> <tr> <td>Design Code</td> <td>SF</td> </tr> <tr> <td>Inside Diameter</td> <td>280 mm</td> </tr> <tr> <td>Outside Diameter</td> <td>320 mm</td> </tr> <tr> <td>Overall Width</td> <td>20 mm</td> </tr> <tr> <td>Contact Type</td> <td>Contact Seal</td> </tr> <tr> <td>Lip Material</td> <td>Nitrile Rubber</td> </tr> <tr> <td>Maximum Pressure</td> <td>7 psi</td> </tr> <tr> <td>Number of Lips</td> <td>1</td> </tr> <tr> <td>System of Measurement</td> <td>Metric</td> </tr> <tr> <td>Case Coating</td> <td>Uncoated</td> </tr> <tr> <td>Maximum Surface Speed</td> <td>999 mps</td> </tr> <tr> <td>Seal Type</td> <td>Single Lip Seal</td> </tr> </tbody></table><h3>Description</h3><p>The DDS 28032020SF is a rotary shaft seal with an SF design code and a single nitrile rubber lip. It has an inside diameter of 280 mm, an outside diameter of 320 mm, and an overall width of 20 mm. This metric contact seal has an uncoated case, a maximum pressure of 7 psi, and a maximum surface speed of 999 mps.</p><p>Confirm the part number against your existing unit or equipment before ordering to ensure correct fit.</p>