BEARING CONSTRUCTION OF WATER PUMP

摘要

PURPOSE:To avoid thrust forces generated due to temperature differences of individual parts during operations by fixing one bearing outer wheel within a pair of bearings by clearance fit and supporting this bearing outer wheel by means of a spacer and a gum ring aginst the other bearing outer wheel fixed by blind fit. CONSTITUTION:Thrust forces generated due to size errors of individual parts or temperature differences during operations are avoided by fixing one bearing 5 outer wheel within a pair of ball bearings by clearance stop. Furthermore, the bearing 5 outer wheel is supported for damping in the direction of a shaft 2 by means of a gum ring 15 and a spacer 14 against the other bearing 6 outer wheel fixed by blind stop. Thereby, a pre-pressure generated by a reaction force of the cross section compression strain of the gum ring 15 with such a predetermined magnitude that gives no excessive thrust forces to accelerate abrasion to the bearing 5 can be applied to the bearing 5.