How to remove the slewing bearing? Bearing disassembly method and matters needing attention-Zhehua Machinery Precision Forging

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How to remove the slewing bearing? Bearing disassembly method and matters needing attention

Release time:

2023-08-23

Disassembly method of 1. slewing bearing
　　
1. Normal clearance fit
　　
Under the condition that the support size is designed normally, the clearance fit of the bearing can be removed by tapping or pulling out with copper rod or other soft metal smaller than the inner diameter of the bearing at the end of the shaft, or the bearing can be slowly pulled out and removed by using a special puller as long as the direction is aligned.
　　
2, the inner ring interference situation
　　
For bearing disassembly can not be separated from the tool, small size turntable bearing regular tool of choice is the puller. divided into two kinds of thread and hydraulic. Thread puller is a more traditional tool. Its operation is to align the center screw with the center hole of the shaft, apply a small amount of grease to the center hole of the shaft for lubrication, hook the hook on the end face of the inner ring of the bearing, and twist the center rod with a wrench to pull out the bearing. The hydraulic puller uses a hydraulic device instead of the thread. When the piston in the middle is continuously extended during pressurization, the bearing will be continuously pulled out, which is faster than the traditional threaded puller and the hydraulic device can quickly retreat. When there is a large number of small size bearings need to be disassembled, you can also use the rapid disassembly of the hydraulic device.
　　
3. The interference fit of the outer ring
　　
The premise of removing the bearing under the condition of interference fit of the outer ring of the bearing is that the diameter of the outer ring stop shoulder cannot be less than the supporting diameter required by the bearing. It can be considered to leave two to three notches at the bearing seat step position in the bearing design stage to facilitate the puller claws to have focal points and facilitate disassembly. When the bearing is large or the amount of interference is large, the flexible coil induction heating method can be used to disassemble by heating the outer diameter of the box body, using the principle of thermal expansion and contraction.

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The company's main products cover automobile gear forgings, automobile wheel flange forgings, railway train forgings, oil drill pipe joint forgings, agricultural machinery forgings, engineering hydraulic machinery forgings, construction basket forgings, solar energy bearing support forgings, etc. The weight of forgings of our products covers a wide range of 400 products from 0.3G to 50 KG. Automobile gear forgings are the company's main products, with an annual output of 15000 tons. Oil drill pipe joints have now applied for two national invention patents. Construction basket internal gear plate forgings in the industry in a leading position.

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Zhehua Precision Forging Co., Ltd. will rely on the advantages of talents, technology, equipment, automation, etc., adhering to the concept of excellence and forging the future, and be recognized by the industry with integrity, strength and product quality. In the new stage of development, it will continue to provide new and old customers. The best quality products and services inject new vitality and glory into the "Zhehua" brand.

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The company's direct or indirect customers include Yuchai Group, China National Heavy Duty Truck, North Benz, Yutong Bus, Kubota Agricultural Machinery, Shanghai BYD, Shenxi Hanging Basket and more than 70 units. In line with the principle of mutual benefit and win-win cooperation, the company is committed to providing customers with better products, more reasonable prices, the most smooth communication, for customers in the process of improving product quality and reducing procurement costs, and the most comprehensive partnership with new and old customers.

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