BEARING HAVING WATER HOLE

摘要

PURPOSE: A bearing having a water supplying unit is provided to reduce the coefficient of friction generated between an outer race and an inner race due to water being directly induced into a space unit from an induction space unit. CONSTITUTION: A bearing having a water supplying unit comprises an outer race(10), an inner race(20), and a ball(30). A rotary shaft(200) is inserted into the inner race. The inner race is arranged inside the outer race. The ball is arranged in a space unit(25) formed between the outer and inner races. The water supplying unit is perforated in the exterior of the outer race toward the inside of the outer race. The water supplying unit is formed in an opposite direction of gravity. The water supplied to the inside of the outer race through the water supplying unit is induced to the space unit and in the direction of the ball by gravity.