Seiko Co., Ltd. has developed a "Long-Life Self-aligning Roller Bearing for Vibrating Machinery" that extends the product life to more than 2 times the original product by controlling the sliding of the roller. It is mainly used for vibration machinery of mining equipment. Can reduce the maintenance burden. A total of 22 products with an outer diameter of 90 to 400mm are available, and the sales in 2011 will reach 1 billion yen.
Most mining equipment is used in harsh environments such as 24-hour operation. In particular, the bearings used for vibrating machinery for sorting minerals are used in a harsher environment and therefore have a shorter life than bearings used in other machines. Since the mechanical shutdown will have a huge impact on production, the bearings used in vibration machines are required to have higher performance such as long life and high reliability.
In order to extend the life of the bearings, Seiko Co., Ltd. adopted a special groove machining design on the raceway surface of the wheels, thereby optimizing the track surface and the roller curvature of the inner and outer wheels. The control of roller sliding (rotation) is achieved, and the occurrence of sliding and stress on the contact surface at the time of rotation is suppressed. By taking this measure, the surface fatigue damage is reduced and the bearing life is extended to more than 2 times the original product.
Most mining equipment is used in harsh environments such as 24-hour operation. In particular, the bearings used for vibrating machinery for sorting minerals are used in a harsher environment and therefore have a shorter life than bearings used in other machines. Since the mechanical shutdown will have a huge impact on production, the bearings used in vibration machines are required to have higher performance such as long life and high reliability.
In order to extend the life of the bearings, Seiko Co., Ltd. adopted a special groove machining design on the raceway surface of the wheels, thereby optimizing the track surface and the roller curvature of the inner and outer wheels. The control of roller sliding (rotation) is achieved, and the occurrence of sliding and stress on the contact surface at the time of rotation is suppressed. By taking this measure, the surface fatigue damage is reduced and the bearing life is extended to more than 2 times the original product.
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