China Quality parts Professional Precision machining,Precision parts processingMotor shaft, Bushings, rivets, special screws, nuts, etc.Precision partsProcessing. Products are widely used in automotive, communications, medical, watch, mobile phone, computer and other industries.
Shaft pin parts are usually used for bearings after processing. In the bearing industry, some people call them needle rollers or rollers. In general, many people think that this should be a manufacturer of bearings. This is the only way to do this, but its not true, companies like Precision parts processing can also do it. Not only can it be done, but it can be done very well, we will come today Introduce the design concept and key knowledge of shaft pin tired parts. Shaft pin parts usually show the phenomenon of delayed fracture under the action of stress. There have been galvanized parts such as automobile springs, washers, screws, leaf springs, etc., which have been fractured within a few hours after the assembly of the axle pin parts, and the fracture rate reached 40% to 50%. A special product cadmium-plated part has experienced batch cracks and fractures during its use. It has organized nationwide research and formulated a strict dehydrogenation process. In addition, some hydrogen embrittlement does not show delayed fracture, for example: electroplating racks (steel wire, copper wire) due to repeated electroplating and acid pickling and deplating, the hydrogen penetration is more serious, and it often occurs when it is used. The phenomenon of brittle fracture; the mandrel used for shotgun precision forging, after repeated chrome plating, fell to the ground and fractured; some quenched parts (large internal stress) produced cracks during pickling. These parts are severely hydrogen-permeable, cracks are generated without additional stress, and the original toughness can no longer be recovered with de-pins. When the shaft pin is designed to reduce the shaft pin, the frictional connection of the shaft pin is the maximum possible friction force provided by the bolt tightening force between the external shear force and the plate contact surface as the limit state, which is to ensure that the connection is The internal and external shear force does not exceed the maximum friction force during the entire use period. The plate will not undergo relative sliding deformation (the original amount of gap is always maintained between the screw and the hole wall), and the connected plate is stressed as a whole. In the shear-resistant design, the high-strength shaft pin pressure-type connection allows the external shear force to exceed the maximum friction force. At this time, the relative sliding deformation occurs between the connected plates until the bolt rod contacts the hole wall, and then the connection depends on the bolt The shearing of the shaft and the pressure of the hole wall are transmitted together by the friction between the contact surfaces of the and the plate. Finally, the shearing of the shaft or the failure of the pressure of the hole wall is regarded as the limit state of the connection shear. Last It is the purpose and specifications of the shaft pin parts produced by our factory: The main purpose: for making nail beds, both sides of the board can be printed at the same time, saving time and improving efficiency Shaft pin features and materials: special imported copper materials, Durable. Any specification can be produced at any time. Shaft pin specification table:
Serial number
Specification size
Serial number
Specifications
1
1.67.0m/m
1
1.38.0m/m
2
1.67.5m/m
2
1.39.0m/m
3
1.68.0m/m
3
1.310.0m/m
4
1.69.0m/m
4
1.311.0m/m
5
1.610.0m/m
5
1.313.0m/m
6
1.611.0m/m
6
1.315.0m/m
7
1.612.0m/m
7
1.319.0m/m
8
1.65x12.0m/m
8
1.321.0m/m
9
1.712.0m/m
9
1.322.0m/m
10
1.75x12.0m/m
10
1.323.0m/m
11
1.612.5m/m
11
1.38x8.0m/m
12
1.613.5m/m
12
1.38x10.0m/m
13
1.615.5m/m
13
1.512.0m/m
14
1.616.0m/m
14
1.55x12.0m/m
15
1.617m/m
15
1.510m/m
16
1.618m/m
16
1.58.0m/m
17
1.620.0m/m
17
1.58.0m/m
18
1.621.0m/m
18
1.412.0m/m
19
1.622.0m/m
19
1.210.0m/m
20
1.624.0m/m
20
1.28.0m/m
21
1.514.0m/m
The above is some relevant knowledge of shaft pin parts produced by our company before, of course, we can customize various parts according to the needs of customers.
