1. With selfadjustment ability xshaped 45 45 of curved groove on cross section design makes it selfaligning. Even small misalignment exists on the mounting surfacethis design can help absorb it and maintain high precision smooth and stable linear motion. 2. High rigidity equal load on four direction design the 45degree contact angle layout of the four rows of steel balls and the raceway allow the steel balls to realize the ideal twopoint contactand can withstand the action and reaction force from the radial and lateral direction. Meanwhilepreload can be applied to increase extra rigidity if necessary. 3. Interchangeable because of the strict control on manufacturing processthe dimensional accuracy is stable and in the midst of the set tolerance. Besides the ball retainer design can prevent steel balls from falling out. Therefore when assemblingblocks are interchangeable within a similar context spec and still maintain consistency of preload and accuracy. Our We aspire to function recognized as the top provider for with our, Industrial procurement core beliefs deeply rooted in the essence of our brand deliver outstanding solutions that guarantee our clients' complete satisfaction @ competitive prices.