Linear guide bearing device and seal member used for the same

摘要

There is provided a linear guide bearing device, and a seal member used for the same, in which the entry of foreign matter to the inside the slider and leakage of lubricant from the inside of the slider are prevented and the manufacturing costs are reduced. For this end, a linear guide bearing device 1 is configured with multiple seal members (31, 32, 33) arranged in an axial direction of a slider (20) are provided at end portions of a slider (20) so as to slide against rolling element rolling grooves (11) of a guide rail (10). The multiple seal members (31, 32, 33) are provided with: seal main bodies (31a, 32a, 33a) respectively having lip parts (31b, 32b, 33b) sliding against the rolling element rolling grooves (11); and reinforcing members (31c, 32c, 33c) arranged on both daces of the seal main bodies (31a, 32a, 33a), respectively.

主权项

1. A linear guide bearing device comprising:
a guide rail which has guide rail rolling element rolling grooves extending in an axial direction; a slider which has slider rolling element rolling grooves facing the guide rail rolling element rolling grooves and straddling the guide rail to be capable of relatively moving in the axial direction through a rolling action of a plurality of rolling elements inserted between associated ones of the guide rail and slider rolling element rolling grooves; and a plurality of seal members attached to each end part of the slider in the axial direction to be superposed in the axial direction of the slider, wherein each of the plurality of seal members has a seal body provided with a lip part which slides against the guide rail rolling element rolling grooves and reinforcing members provided at both sides of the seal body, and wherein for each of the plurality of seal members, the lip part projects from the seal body in a direction toward the slider body, with the length of respective lip parts being longer the further away from the slider body.