Overview
| brand | Cantonese snail | Nominal diameter | forty |
| length | one hundred and thirty | Interdental distance | four |
| Applicable scope | Fasteners for mining machinery | producing area | Yunfu |
| colour | white | Functional purpose | Stainless steel wave bead positioning ball |
| Packaging specifications | fifteen | model | M40 * 130 |
| Customized or not | no | Order number | Yue Luo-2021659 |
| Standard type | European Standard | Delivery time | Within 48 hours |
| Performance level | eight point eight | Material grade | Carbon steel 22H |
Product Details
Earless retaining rings for holes are mostly installed in the circular groove on the inner wall of the pipe fitting, and the outer diameter of these retaining rings is slightly larger than the diameter of the assembly circular hole. During assembly, it is necessary to press the ear free retaining ring into the pipe fitting. Due to the smooth inner wall of the pipe fitting, the ear free retaining ring is prone to tilting inside the pipe fitting and requires multiple adjustments to enter the annular groove, resulting in low assembly efficiency.
In the assembly of fastening and connecting parts and components of various equipment and fixtures, if anti loosening treatment is required for screws and nuts, there is a contradiction between anti loosening and tightening, or between tightening and loosening. For example, there is a high resistance during tightening or loosening, or the anti loosening effect is poor, or the service life is short, and it is scrapped after 2-3 uses. In summary, various types of anti loosening nuts currently have the above problems. Therefore, it is necessary to use a practical model of anti loosening nut with low resistance when tightening or loosening, but good anti loosening effect, and long service life.
The purpose of Guangdong Yueluo Hardware Industry Co., Ltd. is to provide a flat gasket that improves the lubrication performance of the contact surface and reduces the friction of the contact surface. Yueluo is implemented through the following technical solution: a flat gasket with flat upper and lower end faces, characterized in that the upper and lower end faces are arranged with pits in a point shape, which are spherical pits with a diameter between 2-3mm and a depth of 0.5_ Between 1mm. The bottom of some pits is equipped with through-holes that run through the upper and lower end faces, with a diameter of no more than 0.5mm. The flat gasket provided by Yueluo can effectively improve the lubrication performance of the gasket contact surface, reduce friction on the gasket contact surface, and reduce failure rate due to the placement of pits with reasonable design parameters on the upper and lower end faces of the flat gasket, which can serve as oil storage; Furthermore, the design of the through-hole allows for a smooth oil passage between the upper and lower end faces of the gasket, ensuring good lubrication for both ends.
The fixed screw proposed by Guangdong Yueluo Hardware Industry Co., Ltd. has a screw body 1, and the axial surface of the screw body 1 forms an extended screw tooth 6. The axial surface is a cylindrical surface along the central axis direction of the screw body 1, with a hemispherical screw tail 7 at the bottom, and a screw head 2 at the top. The upper surface of the screw head 2 is provided with a groove (not shown). The screw body 1 is composed of an upper cone rod 4 and a lower cylindrical screw rod 5. The cone rod 4 is an inverted cone, and the diameter of its circular upper surface is equal to the aperture size of the screw installation hole 10. The fixed screw also has a washer 3, which is located between the screw head 2 and the screw body 1. The cylindrical washer 3 has several teeth 8 on the lower surface, which are straight convex bars 15 extending outward along the edge of the connection between the upper surface of the inverted cone of the cone rod 4 and the washer 3; The convex strip 15 can also be designed as an arc. The installation fixing screws proposed by Guangdong Yueluo Hardware Industry Co., Ltd. can be made of metal materials by integrated molding. As shown in Figure 3, it is the installation diagram of Guangdong Yueluo Hardware Industry Co., Ltd. for fixing PCB boards. When installing, first pass the screw body 1 that fixes the screw through the installation hole 10 and copper column 11 set on the PCB board 9, so that the tail of the screw 7 reaches the installation hole 13 on the casing 12. Then use the tightening tool 14 to insert it into the slot on the top of the screw head, and forcefully press the inverted cone design cone rod 4 of the screw body 1 into the installation hole 10, so that the tail 7 passes through the installation hole 13
Therefore, there is a need to design a bearing retainer disassembly and installation device that is convenient, safe, and reliable for the installation and disassembly of the bearing retainer.
