... 72MM 3.Ball bearing W 19MM 4.Brand, KOMASU, OEM Double row angular contact ball bearing 7306AC Bearing Specifications: 1) Bearing ... aligning ball bearings, angular contact ball bearings, insert ball bearings, needle roller bearings, thrust ball bearings, cylindrical roller bearings, tapered ... bearings. Technical datas of ball bearings for your reference, Double row angular contact ball bearing 7306AC