China Mr Bearing

Work under the rolling friction bearings. Rolling bearing is a high degree of standardization of parts, good compatibility, low lubricant consumption, mostly with grease lubrication, use convenient maintenance, reliable work, close to the static friction torque of friction torque, starting performance is good, bearing capacity is higher under the moderate speed. Life is low, but high speed sound is bigger. Rolling bearing according to the loading direction can be divided into the centripetal bearing and thrust bearing (see chart). Centripetal bearing mainly bear radial force, also can bear little axial force at the same time; Thrust bearing can only carry axial force. Angular contact bearings can withstand radial force and axial force at the same time. Rolling bearing press roller shape can be divided into again Rolling bearing ball bearings, roller bearings and needle roller bearings. High speed and small load, high rotating accuracy required time choose ball bearing; Load big time choose roller bearings; Large and radial load size and limited time to choose needle roller bearing. Centripetal bearing ring part ring and outer ring, inner ring and shaft tight set and often with shaft
Rolling bearing structure Rolling bearings of rolling bearing type, structure, size and precision grade and other rules in code. Ordinary rolling bearings of no special requirements, the Chinese code with four digits. The front is a type code, followed by the diameter series code, the last two digits for the inner diameter size. The same inner diameter of the bearing, there are several different diameter, light, light, medium and heavy series, with 1, 2, 3, 4 said. Series, light series minimum diameter, heavy outside diameter is the largest. Bearing inside diameter of 20 ~ 459 mm, inner diameter size code by 5 is the inner diameter of the bearing. For example, 6308: 6 on behalf of the angular contact ball bearings, 3 representative in the series, 08 on behalf of the bearing diameter is 8 X 5 = 40 mm. Load with any element in the life of rolling bearing in contact fatigue wear before operation to the total number of turns or the total hours worked under a certain speed, called the bearing life. The service life of rolling bearing varies a lot, the same production of bearings under the condition of the same operation
Rolling bearings - characteristics
1, small frictional resistance, small power consumption, high mechanical efficiency, easy to start. 2, size standardization, interchangeable, installation convenient disassembly, convenient maintenance. 3, compact structure, light weight, the axial size is more narrow. 4, high precision, high speed, wear small, long service life. 5, part of the bearing with automatic tuning new performance. 6, suitable for mass production, quality stable and reliable, high production efficiency.