Patent ID: 7217034

Claim:
Plain bearing for guiding a rail, with a bearing housing ( 4 ) displaying a single, cylindrical through-opening ( 5 ), and a sliding element ( 6 ) which is supported in the through-opening ( 5 ) and which at least partially delimits an interior sliding opening ( 7 ), which is positioned coaxially relative to the through-opening ( 5 ) and in which the rail ( 2 ), by means of a rail head ( 9 ) extending from a rail body ( 8 ) and adapted to the sliding 15 opening ( 7 ), is mounted in displaceable fashion, where the through-opening ( 5 ) and the sliding opening ( 7 ) are laterally open towards the outside at an angle μ formed by an engaging opening ( 10 ) extending along their entire axial length, through which the rail head ( 9 ) of the rail ( 2 ) can engage the sliding opening ( 7 ), characterized in that the sliding opening ( 7 ) displays a polygonal cross-section, where at least one of the interior side surfaces ( 11 ) of the sliding element ( 6 ) that delimit the sliding opening ( 7 ) and are designed as locating surfaces is essentially perpendicular to the greatest force expected during operation and transmitted via the sliding element ( 6 ) to the rail head ( 9 ).