APPARATUS FOR REDUCING SHAFT VIBRATION USING BALL BALANCER

摘要

The present invention relates to multiple apparatuses installed in a shaft (20) to reduce vibration. The apparatus to reduce shaft vibration comprises: a ball balancer which has multiple balls (36) in a race (31) and is concentrically installed in the circumference of the shaft (20); and a fixing unit (40) which is inserted into the gap between the shaft (20) and the ball balancer (30) and fixes the position of the ball balancer. Therefore, the present invention enables the easy installation and repair of the ball balancer in a propeller shaft of a ship, and prevents additional vibration from occurring due to the rotation of the balls in the ball balancer.