Understanding the limit speed of spherical roller bearing

Wafangdian bearing - Bearing - comfortable and durable On June 28, the authors explain for you: understanding the limit speed of spherical roller bearing self-aligning roller bearing is bearing during operation can reach the highest speed, mainly depends on the bearing during operation because of the heat generated by the friction and the relationship between the discharge quantity of heat, and bearing materials, the structure size, clearance, load, keep the frame and structure of the material and the guide way, the lubrication method, the dosage of lubricant, bearing cooling condition is closely related to the factors such as. Under normal circumstances, the bearing samples are given a single set of bearing grease lubrication and oil lubrication conditions limit speed, its applied conditions are: standard structure, common precision, basic group of open type bearing clearance; Sufficient lubrication conditions; Equivalent dynamic load is less than 10% of the rated dynamic load bearing; 20 ℃ ambient temperature, bearing temperature of 50 ℃; The centripetal bearing only bear radial load, thrust bearing only carry axial load. Understanding the limit speed of spherical roller bearing: if the actual working condition and the applicable condition is different, the actual maximum working speed will be lower than sample given in the reference speed limit values. Double or triple bearing limit speed can achieve a single set of bearing 60% in general 80%. Improve precision bearings and bearing clearance to appropriate to a certain extent, improve the limit speed of the bearing, but specific to improve value is difficult to quantify; Use of lightweight materials to maintain or design the special structure of the cage, a more effective lubrication method can greatly improve the limit speed of the bearing, up to the sample given 3 to 4 times the limit speed. Bearing at the same time for you to explain the rotating precision of bearing 1, complete sets of bearing inner ring and outer ring radial beat; 2, complete sets of bearing inner ring and outer ring end face a race to beat; 3, inner ring benchmark end face diameter to beat; 4 and exterior bus for reference face changes of slope; 5, the thickness of the thrust bearing race groove on the underside of quantity change. Bearing comfortable and durable, )