Patent ID: 7465091
Filing Date: 2008-12-16
Classification: F16C

Abstract:
1. A linear guide device, comprising a rail, at least one slide member and a multiple rows of rolling elements; said slide member consisting of a rigid body, a bottom frame, a front and a rear end caps, said rigid body comprising a flat plate and two leg portions downwardly extended therefrom, each leg portion having raceways on an inward surface and a return channel either completely or partially exposed on outer sides of said raceways, said bottom frame being mounted under said rigid body, further comprising two end plates attached on both ends of said rigid body, two under plates underneath said leg portions and an upper plate underneath said flat plate; said under plates further providing a plurality of rest return channels; said both endplates further providing inner walls of the turnaround channels for each said raceways; said front and rear end caps, mounted on the outer end of said endplate, and providing the outer wall of a turnaround channels, whereby said turnaround channels connect said return channels and said raceways to form a plurality of recirculation passages; said rail having multiple rows of longitudinally extended raceways, which correspond to the raceways of said slide member one-to-one, when said slide member riding on the rail; said multiple rows of rolling elements rolling within the coupled raceways and circulating within said recirculation passage; wherein each said upper plate and under plates of said bottom frame having a concavity, obturated by associating underneath the rigid body, as a lubricant reservoir, each said lubricant reservoir having at least one lubrication pad filled inside and being brought into contact with adjacent said rolling elements through the openings of said lubricant reservoir extending to said raceways.