LR50/5-2RSRLR50/5NPPU双列,两侧密封LR50/6-2RSRLR50/6NPPU双列,两侧密封LR50/7-2RSRLR50/7NPPU双列,两侧密封LR50/7-2RSRLR50/7NPPU双列,两侧密封LR50/8-2RSRLR50/8NPPU双列,两侧密封LR5000-2RSLR5000NPPU双列,两侧密封LR5001-2RSLR5001NPPU双列,两侧密封LR5002-2RSLR5002NPPU双列,两侧密封LR5003-2RSLR5003NPPU双列,两侧密封LR5004-2RSLR5004NPPU双列,两侧密封LR5005-2RSLR5005NPPU双列,两侧密封LR5006-2RSLR5006NPPU双列,两侧密封LR5007-2RSLR5007NPPU双列,两侧密封LR50X55X20,5LR50X55X20,5磨削，增加的公差LR5200-2RSLR5200NPPU双列,两侧密封LR5200-2ZLR5200KDDU双列,两侧密封)