| 加工定制：是 | 产品别名：牛油头注油嘴黄油嘴油脂加注器 | 品牌：润驰通 |
| 型号：M14*1.5 | 性能：不漏油 | 材质：铁铜不锈钢 |
| 用途：船用风机、 锅炉风机、 空调风机、 其他 | 类型：外转子风机 | 适用风机：核电风机，风能风机，减速机，车桥 |
| 风机压力：高压风机 |
grease fitting, grease nipple or Zerk fitting is a lubrication fitting used in mechanical systems to add grease with a grease gun series. The fitting is permanently installed by a threaded connection leaving a nipple connection the grease gun series attaches to. By using the pressure in the grease gun series, grease is added to the system through the grease fitting. Generally a spring-loaded steel ball is fitted to the internal side of the nipple inlet passageway to exclude dirt intrusion and function as a shutoff valve to prevent grease escaping back out of the nipple. The ball is almost flush with the surface of the nipple so it can be wiped clean to reduce the amount of debris carried with the grease into the bearing. Grease nipples are commonly made from carbon steel,stainless steel or brass.
However, in many modern applications they are falling out of use, because it has been determined by wear analyses that each new grease injection usually contains abrasive contamination, and thus service life is reduced compared to many "sealed for life" systems
