http://pastport.jp/user/RollneckBearing ja-JP Four-row tapered roller Bearing, for rolling mill stand, with TIMKEN3311 material, high capacity, long service time. 2023-02-21T16:26:20+0900 http://pastport.jp/user/RollneckBearing/timeline/Four-row%20tapered%20roller%20Bearing RollneckBearing http://pastport.jp/user/RollneckBearing/timeline/Four-row%20tapered%20roller%20Bearing