self-aligning roller bearings : 1.OEM service 2.Small orders accept 3.Low price.good quality 4.Prompt delivery cylindrical roller bearings(NJ311--NJ315): MODEL NO.DEMENSIONS (d*D*B)WEIGHT (KG)NJ31155×120×291.77NJ311E55×120×291.5NJ311E55×120×291.11NJ311EM55×120×29-NJ311M55×120×291.75NJ31260×130×312.1NJ312E60×130×311.786NJ312M60×130×312.12NJ31365×140×332.6NJ313E65×140×332.2NJ313M65×140×332. ...