Product Packing & Delivery Packing Detials：Industrial packing, Single box, or as customer's request Product Quick Details A square bore is the most prominent feature of this series agricultrual bearings ,their base structure belong to single row deep groove ball bearing. Used in applications where collars, set screws, or any other locking devices are not required. This series incorporates a close fitting metal shield backed by a molded rubber seal. Also available relubricable-prefix "G". corporation professional supply high quality GW212PP50 Square bore agricultural ball bearings Disc harrow ball bearings for global buyer, the first choice of agricultural machine factory, farm machinery parts company and bearing company.