【 Jiaxing bearing knowledge 】 Bearing with purpose and method

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. 1. Bearing fit is a kind of standard parts, rolling bearing has a small friction, easy to start, and the advantages of easy replacement. When we are in the daily maintenance or engaged in mechanical design, reasonable and correct selection of bearing fit is crucial. 2. Bearing with the purpose of the bearing fit to make bearing inner ring and shaft or outer ring and shell firmly fixed, in order to avoid adverse circumferential sliding on the mutual cooperation. The circular sliding (this kind of bad As the creep) Can cause fever, abnormal mating surface wear, wear iron powder of shooting bearing internal and all sorts of problems, such as vibration bearing cannot give full play to the role. So for bearing, due to the load rotation, generally must be put on ring interference or shell is fixed firmly on the shaft. 3. Bearing common with method of bearing common two kinds of matching method, respectively is: the force fit and heating to cooperate. 1) Force fit tight fit bearing inner ring and the shaft, the outer ring and bearing hole is a loose fit, press the bearing to be pressed on the shaft are available, and then put the shaft together with the bearing load bearing hole, when pressed on the bearing inner ring end face, cushion the assembling casing made of a soft metal materials ( Copper or mild steel) , the inner diameter of the casing assembly should be slightly larger than the diameter of a journal, outside diameter than the bearing inner ring guard slightly smaller, in order to avoid pressure in keeping the frame. Bearing outer ring and bearing hole tight fit, inner ring and the shaft is a loose fit, the bearing can be pressed into the bearing hole first, then assembling casing diameter should be slightly less than the diameter of a hole. If the bearing ring and shaft and hole is a tight fit, install indoor ring and outer ring to pressure into the shaft and hole, at the same time assembling casing structure should be able to at the same time, so the bearing inner ring and outer ring end face. 2) Heated by heating the bearing or bearing seat, the use of thermal expansion will fit into a loose fit installation method, installation method is a kind of common and energy saving. This method is suitable for interference quantity larger the installation of the bearing, the bearing before hot charging type or separable bearing ring into the fuel tank 80 - uniform heat 100 ℃, and then loaded on the shaft, as soon as possible out of the oil to prevent inner ring after cooling end face and shoulder joint is not tight, bearing axial fastening again after cooling. Bearing outer ring and light metal bearing seat tight fit, by heating the hot charging method of the bearing, can avoid the mating surface scratch. Heating tank with bearing and should be at a certain distance from the bottom of a mesh, or hanging hooks in the bearings, bearing on the bottom, in case of heavy impurities into the bearing or uneven heating, fuel tank must have a thermometer, strictly control the oil temperature shall not exceed 100 ℃, in order to prevent the tempering effect, reduce the hardness of the ring. If you are more interested in jiaxing bearing group co. , LTD. The author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you full close jiaxing bearing purchasing consultant company. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source