The structure of the bolted roller bearing, the classification of the bolted roller bearing and the advantages of the bolted roller bearing compared to the sliding bearing What is the bolted roller bearing (bolt roller bearing manufacturer)? The sliding friction between the running shaft and the shaft seat is changed into rolling friction by rolling elements (balls, rollers or needle rollers), thereby reducing friction loss. A precise mechanical element is called a bolt roller bearing. This article mainly introduces the structure, classification and advantages of bolted roller bearings compared with sliding bearings. I hope it will be helpful for everyone to understand bolted roller bearings! The structure of the bolted roller bearing: the outer ring of the bolted roller bearing adopts a full complement cylindrical roller bearing with a thick outer ring wall. With this outer ring, the rollers can roll directly on the raceway and can withstand heavier loads and shock loads. The bearing is a sealed structure, filled with grease to provide long-term effective lubrication, and users can avoid lubrication. For harsh operating conditions, a channel for supplementing grease can be designed to improve bearing service life. Improper method can also cause the bolt roller bearing to heat up. Lubrication can reduce the wear of parts in motion, ensure the accuracy of the press, and reduce energy consumption. Lubrication is divided into thin oil lubrication, thick oil lubrication, etc. The specific details of bolted roller bearings are as follows: 1. Consists of an outer ring, a needle roller and cage assembly or a full complement needle roller set or a full complement cylindrical roller set, with an inner ring or without an inner ring complete unit. 2. The roller is a full complement cylindrical roller structure, which is suitable for bearing very heavy load, and can also bear impact axial load at high speed. 3. The outer ring of this kind of bearing adopts roller type, with compact structure and thick outer ring wall, which can bear large impact force during rotation and has good wear resistance. 4. Like the cylindrical roller bearing, the outer ring is axially guided by the rolling elements and pressed into the outer ring to form a high-efficiency gap seal. 5. Closed stamped outer ring bolted roller bearing, inner ring bolted roller bearing and non-bolted roller bearing. 6. The outer ring adopts arc surface design, with single, double sealing ring, without sealing ring, with sealing ring and other specifications and models. The composition of the combined bolt roller bearing: 1. The main roller The main roller is the main bearing body in a set of composite rollers. It mainly bears the vertical load and impact load, and has strong impact resistance, wear resistance and corrosion resistance. . Since the main roller is a full complement roller bearing, it can also be used alone as a one-way bearing. 2. Side roller The side roller is the second bearing body in a set of composite rollers. It mainly bears the horizontal load, and also has strong impact resistance, wear resistance and corrosion resistance. The side rollers are designed with full needle rollers without inner ring, and a mandrel replaces the inner ring and the shaft head to connect and carry. 3. The shaft head The shaft head is used as the connection part between the composite roller and the machine equipment. Usually the shaft head head is designed to be chamfered, which is convenient for installation. The shaft head can be directly welded to the equipment, or the shaft head can be welded with Assemble the connecting board and the device on the connecting board with the round hole. 4. Cover plate The function of the cover plate is to fix the side rollers installed inside the shaft head and the main roller outside the shaft head with nuts and thread glue at the tail of the shaft head. The structure of bolted roller bearings | Classification of bolted roller bearings and their advantages compared to sliding bearings Classification of bolted roller bearings: According to the purpose of the bearing, it can be divided into: (1) railway bearings (2) automobile bearings (3) machine tool bearings (4) Aero-engine bearings (5) Motor bearings can be divided into: (1) High temperature bearings (2) Low temperature bearings (3) High speed bearings (4) Vacuum bearings (5) Antimagnetic bearings (6) Corrosion-resistant bearings, bolts, roller bearings Compared with sliding bearings, it has the following advantages: 1. The friction coefficient of bolt roller bearings is smaller than that of sliding bearings, and the transmission efficiency is high. The friction coefficient of general sliding bearings is 0.08-0.12, while the friction coefficient of bolted roller bearings is only 0.001-0.005; 2. Bolted roller bearings have been standardized, serialized and generalized, and are suitable for mass production and supply, use and maintenance. It is very convenient; 3. The bolt roller bearing is made of bearing steel and has undergone heat treatment. Therefore, the bolted roller bearing not only has high mechanical properties and long service life, but also can save the expensive non-ferrous metals used in the manufacture of sliding bearings; 4. The internal clearance of the bolted roller bearing is small, and the machining accuracy of each part is relatively high. high. Therefore, the running accuracy is high. At the same time, the rigidity of the bearing can be increased by preloading, which is very important for precision machinery; 5. Some bolted roller bearings can bear radial and axial loads at the same time. Therefore, the structure of the bearing support can be simplified; 6. Due to the high transmission efficiency of the bolt roller bearing, the heat generation is small. Therefore, the consumption of lubricating oil can be reduced, and the lubrication and maintenance are more convenient; 7. The bolt roller bearing can be easily applied to the shaft in any direction of the space
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