Side Seals Extend Service Life

The Roller Guide equipped with side seals has been added to the company’s line of NSK linear guides.

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The Roller Guide equipped with side seals has been added to the company’s line of NSK linear guides. The roller guides feature enhanced durability under harsh operating conditions where lubrication tends to dry out or become contaminated by dust.

Roller guides feature both high rigidity and large load capacity. Because fine dust particles can force their way into the roller guide slider, abnormal abrasion of the raceway and impairment of the rotation of the rolling element can occur. Conventional roller guides used in production environments that generate fine dust particles can even become damaged in a relatively short time.

The company’s high-performance side seals make it possible to maintain highly dustproof performance in roller guides for long periods of operation.

The roller guide incorporates highly dust resistant side seals designed using new materials and a new shape that improves abrasion resistance that makes it possible to prevent penetration by particles not stoppable with conventional cover designs. Adding the rail cover prevents buildup of foreign matter in the mounting bolt holes, thereby helping to prevent dust entry into the inside of the roller guide.

The side seals boast abrasion-resistance performance more than five times that of conventional products, ensuring dustproof performance can be maintained over very long periods. In addition, NSK K1 lubrication unit improves roller guide track surface and side seal area lubrication performance, which helps to minimize any tear-off of the side-seal lip.