High standard 6200 ball bearing

Due to the large partial strike 68 Series Ball Bearings of multi-cavity forging, and the severe cold strike during the final forging, the guide rail is damaged severely in the early stage, and even the phenomenon of 'hammer stuck' occurs.; ⑷. Improve the design of the secondary valve and increase the area of ​​the orifice, thereby increasing the flow rate and velocity during the slow drop process.　　When lifting the hammer, you only need to manipulate the main valve to make the high pressure oil in the oil pump accumulator communicate with the lower cavity of the main cylinder piston.　　 But for multi-cavity forging die forging hammer to implement 'head change' transformation, 'flexible thin hammer rod theory' is obviously not applicable. According to the principle of tribology, 3 sets of tensioning structures (compression piece, taper sleeve, hammer rod) are designed to make the hammer rod by The original 'double cone structure' is changed to a 'single cone structure', which greatly avoids the occurrence of stress concentration, thereby achieving both reliable connection and convenient disassembly. The hydraulic station part includes: oil tank, motor-oil pump unit, Electronically controlled unloading valves, valve seats, electronically controlled thermometers, heat exchange motor pump units, heat exchangers, oil filters, etc. The electro-hydraulic power head, its main body is a tank, which is used as a short-term oil tank during operation (when not working, the oil in the tank enters the oil tank of the hydraulic station placed on the ground through the oil retu pipe), with eight bolts passing through The cushion and the pre-compression spring are fixed at the original cylinder position. In the past, “free forging electro-hydraulic hammers are not free”.2mm), which makes the forging process The eccentric force is boe by the hammer head rail, which greatly improves the life of the hammer shaft. According to ,68 Series Ball Bearings ...ادامه مطلب

Y-bearing with eccentric locking 68 Series Ball Bearings is mainly suitable for applications where the rotation direction is inconvenient to fix. On one side of the inner ring of the bearing, there is an eccentric extension that fits with the locking ring. Rotate the locking ring on the extension of the inner ring in the direction of rotation to lock the ring and the bearing to the shaft. Use a flat head (fixing) screw to further fasten the collar to the shaft. SKF can provide two standard series: one is Y-bearing of YET2 series, the inner ring is extended on one side, and strong Superagriseal seals are fitted on both sides. The eccentric locking ring is coated with a galvanized layer. The standard outer ring has two lubrication holes. The inner ring of YEL2 series Y-bearing extends on both sides. This helps reduce the degree of tilt of the inner ring to the shaft and makes the bearing run more smoothly. These bearings are equipped with sturdy standard Superagriseal seals and one of the following two types of oil retaining rings: oil retaining rings made of ordinary steel, with the designation suffix 2F. Steel plate oil baffle ring with rubber sealing lip (multiple seal), the model suffix is ​​2RF. The outer ring has two lubrication holes as the standard form. SKF can also provide bearings without refueling holes according to customer requirements. These bearings are indicated by the suffix W. This type of SKF bearings include bearings for metric shafts, with a diameter range of 15-60mm and bearings for inch shafts, with a diameter range of 1/2-215/16 inches. When cutting high manganese steel, the leading deflection angle should be smaller, which can increase the heat dissipation area of ​​the tool and the strength of the tip, and the secondary deflection angle should not be too large. When choosing cemented carbide tools, generally take κr=25°～45°, κ′r=10°～20°. When the rigidity of the process system is good, take a small ,68 Series Ball Bearings ...ادامه مطلب