Patent ID: 8523443

Claim:
A linear guidance system comprising a guide rail ( 1 ) and a carriage ( 2 ) which is guided displaceably on the guide rail by way of at least two ball bearings ( 3 , 3 ′), wherein the ball bearings respectively comprise a plurality of balls ( 4 ) and a ball cage ( 5 ) and the guide rail ( 1 ) has running surfaces ( 9 , 9 ′) and the carriage ( 2 ) has running surfaces ( 10 , 10 ′) for the rolling movement of the balls ( 4 ) of the ball bearings ( 3 , 3 ′), wherein the carriage ( 2 ) includes a profile member ( 11 ) which is substantially C-shaped in cross-section, wherein the running surfaces ( 10 , 10 ′) are provided at the respective end portions ( 11 ′, 11 ″) of the C-shaped profile member ( 11 ) and the carriage ( 2 ) further includes a plate ( 12 ) which extends between the end portions ( 11 ′, 11 ″) of the C-shaped profile member ( 11 ) of the carriage ( 2 ) and is connected to said end portions ( 11 ′, 11 ″), forming a closed hollow profile.