What is the tolerance range of precision screws?
What is the tolerance range of precision screws?
The materials of rubber gaskets are usually NBR (nitrile butadiene rubber), SBR (styrene butadiene rubber), HNBR (hydrogenated nitrile butadiene rubber), EPDM (EPDM rubber), SILICONE (silica gel), VITON (fluorine rubber), CR ( Neoprene), FFKM (perfluoroelastomer), etc.
Screw (English a screw) refers to the parts used in construction machinery. It is a kind of threaded parts with sharp ends such as nails, small cylindrical or conical metal rods, with grooved or dimpled heads, and used alone. . The detection of the screw should start from the wire of the screw. The quality of the precision screw is directly related to the wire that produces the screw. A good screw wire will open the screws more beautifully. What screw head burst, what thread is bad. Good screw wires generally do not find this situation.
Guangdong Yueluo Hardware Industry Co., Ltd. is a kind of locking nut, which includes a nut, the bottom of which is circular, the middle is hexagonal, the top is circular, there is a bolt hole in the center, the side wall of the bolt hole is threaded, and the top of the nut is Set up several squash notches. According to the locking nut of the preferred embodiment of Guangdong Yueluo Hardware Industry Co., Ltd., the number of flattening notches is three. The three flattening gaps can be used as the focal point of the tightening tool and the clamping place of the anti-loose gasket bayonet, and the structure is simple and can be formed by die stamping at one time.
After the centrifugal fan blade is assembled in the square cabinet, it needs to be fixed with nuts. The components needed to fix the centrifugal fan blades are gaskets, washers and nuts. During the operation, it is necessary to assemble the gasket, washer and nut in sequence, then drip the fastening glue, and then fix it.
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