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Agriculture Bearing


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Why we choose ceramic ball bearings?
In the development and application of modern industry, the bearing are mainly divided into four types according to bearing materials: ordinary bearing steel AISI52100 (GCr15), stainless steel AISI440 (9Cr18), silicon nitride (Si3N4) and zirconia (ZrO2). Among them, ceramic bearings, especially hybrid ceramic ball bearings, are widely used in h... In the development and application of modern industry, the bearing are mainly divided into four types according to bearing materials: ordinary bearing steel AISI52100 (GCr15), stainless steel AISI440 (9Cr18), silicon nitride (Si3N4) and zirconia (ZrO2). Among them, ceramic bearings, especially hybrid ceramic ball bearings, are widely used in high-speed and ultra-high-speed precision spindles. Hybrid ceramic ball bearings, that is, the rolling elements use hot-pressed Si3N4 ceramic balls, and the bearing rings are still steel rings. This type of bearing has a high degree of standardization and easy maintenance. The assembled high-speed electric spindle with hybrid ceramic ball bearing has the advantages of high speed, high rigidity, high power and long life.The composition of ceramic ball bearing: inner/outer ring with bearing steel or stainless steel + ceramic ball + PA66 stainless steel retainer + high temperature grease.When the rolling element adopts ceramic material, the bearing is defined as hybrid ceramic ball bearing. Commonly used ceramic ball materials are zirconia (ZRO2) and silicon nitride (SI3N4); commonly used ring materials are bearing steel (GCR15) and stainless iron (440, 440C) and stainless steel (304, 316, 316L).The advantages of ceramic ball bearings1. Work in more than 220 degreesThe thermal expansion coefficient of ceramic balls is small, and the bearing ball will not expand under the high temperature environment, which greatly increases the operating temperature of the entire bearing.The temperature of ordinary bearings is about 160 degrees, and the ceramic ball can reach more than 220 degrees.Ceramic balls have oil-free self-lubricating properties, and the friction coefficient of ceramic balls is small, so ceramic ball bearings have high speed.2. Long service lifeCeramic balls can be operated without any grease, that is to say, even if the grease is dried, the bearing can still work. According to our tests and feedback from some customers, the service life of ceramic ball bearing is 2-3 times that of ordinary bearings.Bearings with ceramic balls can insulate the inner ring and outer rings of the bearing, which allows the bearing to be used in a conductive environment.3. PreservativeSince ceramics are scarcely resistant to corrosion, ceramic ball bearings are suitable for operation in harsh conditions covered with corrosive media.4. Low densitySince the density of ceramic balls is lower than that of steel, and the weight is much lighter, the centrifugal effect to the outer ring during rotation can be reduced by 40%, and the service life is greatly extended.5. Good flexibilitySince the elastic modulus of ceramic is higher than that of steel, it is not easy to deform when subjected to force, so it is conducive to improve the working speed and achieve higher accuracy.The types of ZYS hybrid bearings can be divided into H719C(AC)/HQ1, H70C(AC)/HQ1, B70C/HQ1, B70C(AC)-2RZ/HQ 1, B719C(AC)-2RZ/HQ1, etc.  View Details
Tips of changing the washing machine bearing
After the washing machine bearing is removed, first observe whether there are cracks, rust, scars on the rolling element, the inner ring and outer ring of the bearing. Then hold the inner ring of the bearing by hand and level the bearing, and rotate the outer ring of the bearing with the other hand. If the bearing is good, the outer ring should rot... After the washing machine bearing is removed, first observe whether there are cracks, rust, scars on the rolling element, the inner ring and outer ring of the bearing. Then hold the inner ring of the bearing by hand and level the bearing, and rotate the outer ring of the bearing with the other hand. If the bearing is good, the outer ring should rotate smoothly and gradually decelerate to stop. There is no vibration or obvious stagnation during the rotation. After the rotation, the outer ring does not reverse. If the bearing is defective, noise and vibration will appear when it rotates. It will be abrupt like a brake when it stops, and it will reverse backwards seriously. Such bearings should be replaced.The radial clearance of the washing machine bearing is 0.01 mm-0.02 mm. Push the inner ring in all directions. If the gap is felt when pushing, then the bearing wear is severe. Before installing the washing machine bearing, it should be cleaned and checked for flexibility and smoothness, and greased. Then, ZYS washing machine bearing is placed on the journal, and a sleeve is used to hold the inner ring of the bearing. The upper end of the sleeve is iron-plated and hammered until the bearing is in place. When knocking, pay attention to the fact that the bearing can not be skewed, and the tap should be facing the axial direction. View Details
The installation of robot bearing
The installation of robot bearing will affect the accuracy, life and performance of the robot bearing. Therefore, it is important to install the robot bearing in accordance with the operating standards. The following are the installation rules for robot bearings. The installation of the robot bearing should be based on the structure of the robot be... The installation of robot bearing will affect the accuracy, life and performance of the robot bearing. Therefore, it is important to install the robot bearing in accordance with the operating standards. The following are the installation rules for robot bearings. The installation of the robot bearing should be based on the structure of the robot bearing, the size and the mating nature of the robot bearing components. The pressure should be directly applied to the end face of the ring instead of transmitting through the rolling element. The robot bearing installation generally adopts the following methods: First, clean the robot bearings and related parts. For grease-lubricated robot bearings and double-sided oil seals or dust caps, the seal robot bearings do not need to be cleaned before installation. Check the size and finishing of the relevant parts. The inner ring of the robot bearing is tightly matched with the shaft. When the outer ring and the bearing hole of the robot are loosely matched, the robot bearing can be press-fitted on the shaft by the press, and then the shaft is loaded into the hole of the robot bearing seat together with the robot bearing. On the end face of the inner ring of the robot bearing during press-fit, a mounting sleeve (copper or mild steel) made of soft metal material is used. The inner diameter of the assembled sleeve should be slightly larger than the diameter of the journal. The outer diameter should be slightly smaller than the inner ring of the robot bearing to avoid pressing on the cage.When the outer ring of the robot bearing is tightly matched with the hole of the robot bearing seat but the inner ring and the shaft are loosely fitted, the robot bearing can be first pressed into the hole of the robot bearing seat. At this time, the outer diameter of the assembling sleeve should be slightly smaller than the diameter of the seat hole. If the robot bearing ring is tightly fitted with the shaft and the seat hole, the inner ring and the outer ring should be pressed into the shaft and the seat hole at the same time. The structure of the assembly sleeve should be able to simultaneously press the end faces of the inner and outer rings of the robot bearing. View Details
Inspection of one-way bearing for washing machine
Although the outer cup of the clutch is accurately drawn from strip steel, it can go slightly out of round during heat treatment. When the assembly is pressed into a ring gage or properly prepared housing of correct size and wall thickness, it becomes round and properly sized. Direct measurement of the outside diameter of a drawn cup assembly is an... Although the outer cup of the clutch is accurately drawn from strip steel, it can go slightly out of round during heat treatment. When the assembly is pressed into a ring gage or properly prepared housing of correct size and wall thickness, it becomes round and properly sized. Direct measurement of the outside diameter of a drawn cup assembly is an incorrect procedure. The proper inspection procedure is as follows: 1. Press the assembly into a ring gage of the proper size. 2. Gage the bore with the specified plug gages of the proper size. - The locking plug is rotated to insure lockup when the clutch is operated at low limit shaft and is mounted in a high limit housing strong enough to properly size the clutch. - The overrun plug is rotated to ensure free over-running when the clutch is operated on a high limit shaft and is mounted in a low limit housing. - The go plug and no go plug insure proper size of the bearings in the clutch and bearing assemblies. View Details