A***531轴承NSK挖掘机轴承NTN扒渣机轴承克迪斯轴承（天津）NTN挖掘机轴承NSK挖掘机轴承外形尺寸及技术参数对照表NTN挖掘机轴承（天津专卖）NSK挖掘机轴承（克迪斯轴承天津）克轴承型号（单列角接触球轴承）外形尺寸（内径x外径x高）（mm)迪BA240-3WSA240x310x33.5斯BA230-7230x300x35轴BA180-4WSA180x250x33承BA280-2SA280x370x40BA200-7B200x250x25BA300-4WSA300x395x50)