Commonly used models of grease fittings: straight-through pressure filling fittings M6 M10×1. Joint type pressure injection nozzle M6 45° M10×1 45°. Each nominal diameter corresponds to an outer diameter, and the inner diameter value varies with thickness. (Pipes are divided into British pipes and metric pipes. For pipes with a nominal diameter of DN100, if the pipe is an international series (commonly known as British pipes), its outer diameter is 114.3mm;

If the pipe is It is a domestic series (commonly known as metric pipe), and its outer diameter is 108mm. So there are two diameters, which are not contradictory.) The nominal diameter can be expressed in metric mm or inch.

Extended information:

Notes on cleaning the grease nipple:

1. It is best to butter once a month. Otherwise, the shaft pin is completely rusted and cannot be moved at all. Basically, the operator does not grease the machine seriously.

2. Objects such as sand and gravel during construction have entered the gap between the oil seal and the pin sleeve. The gap between them should generally be tightly wrapped with iron wire, plastic hose, car inner tube, etc.

3. Clean up the impurities, sand, gravel, and dust before installing the new parts.