BS ISO 15312-2004 滚动轴承.热速额定值.计算和系数

标准号：BS ISO 15312-2004
中文标准名称：滚动轴承.热速额定值.计算和系数
英文标准名称：Rolling bearings - Thermal speed rating - Calculation and coefficients
标准类型：J11
发布日期：2004/3/5 12:00:00
实施日期：2004/3/5 12:00:00
中国标准分类号：J11
国际标准分类号：21.100.20
适用范围：This International Standard defines the thermal speed rating for oil bath lubricated rolling bearings and defines calculation principles for the determination of this parameter. The parameter determined in accordance with this International Standard applies to rolling bearings of the given series and sizes of standard design or of a design that, from a frictional point of view, can be related to a standard design bearing. In most cases of standard assembly, the permissible temperature determines the maximum operating speed. Heating of the assembly is then generated by the bearing. Thrust ball bearings are excluded from this International Standard as kinematic effects do not allow the thermal speed rating defined in this International Standard to be applied. NOTE 1 In Annex A mean values for the coefficients f0r and f1r are given — f0r for calculating viscous losses of oil bath lubricated bearings and f1r for calculating frictional losses of bearings. NOTE 2 In Annex B the reference conditions for grease lubrication are defined. The reference conditions are chosen such that the thermal speed rating for grease lubrication is identical to that for oil bath lubrication.