BEARING FOR A SHEDDING MACHINE OR SYSTEM FOR TRANSMITTING MOVEMENT, MECHANICAL DOBBY COMPRISING SUCH A BEARING AND SHEDDING MACHINE COMPRISING SUCH A DOBBY OR SUCH A BEARING

摘要

A bearing (25) for a group of machines or a system for transmitting motion to a loom frame, including an inner ring (72),An outer ring (74) and a rolling element (76). The inner ring is centered on the main shaft (A72),It includes two sides perpendicular to the spindle and defines a circumferential (80) bearing path centered on the spindle. The outer ring (74) defines the inner bearing path (82),It's round and centered on the main axis. A rolling element (76) is inserted radially relative to the spindle between the outer bearing path and the inner bearing path to guide the outer ring to rotate about the spindle relative to the inner ring. The inner ring (72) includes at least one lamp (90),Facing both sides, extending to a part of the peripheral rolling path (80),And a material bridge (94) is formed between the light and the surrounding rolling path. The material bridge (94) extends to the angular sector (99) of the inner ring, centered on the main shaft (A72) of the bearing, and its top angle (α 1) is greater than or equal to the top angle (β 2) of the angular sector occupied by two rolling elements (76),Preferably greater than or equal to the top angle (β 5) of the angular sector occupied by five rolling elements, preferably greater than or equal to the top angle (β 9) of the angular sector occupied by nine rolling elements, Preferably still greater than or equal to the angle (β 13) at the top of the angular sector occupied by the 13 rolling elements. The inner race (72) also includes at least one hole (88) for fixing the bearing (25).