23248B轴承 GAKSR12-PS轴承 1218K轴承 UKFC211;H2311X轴承 22348B轴承 GIKPSR12-PS轴承 2218K轴承 UKFC209;H2309X轴承 23948K轴承 GIKSL12-PS轴承 UKFC210;H2310X轴承 GIKSR12-PS轴承 1318K轴承 23048BK轴承 UKFC212;H2312X轴承 GAL12-DO轴承