Bearing for a shedding machine or motion transmission system, heald motion lever comprising such a bearing and shedding machine comprising such a lever or such a bearing

Abstract

Bearing (25) for a shed-forming machine or a system for transmitting movement to the frames of a loom, which comprises an inner ring (72), an outer ring (74) and rolling elements (76). The inner ring is centered on a major axis (A72), has two lateral surfaces normal to the major axis, and defines a circular peripheral ring (80) centered on the major axis. The outer ring (74) defines an inner ring (82), which is circular and centered on the main axis. The rolling elements (76) are interposed, radially with respect to the main axis, between the peripheral ring and the inner ring, so as to guide the outer ring in rotation relative to the inner ring around the main axis. The inner ring (72) comprises at least one slot (90), opening onto the two lateral surfaces, extending opposite a portion of the peripheral ring (80), and forms a bridge of material (94) between the slot and the peripheral ring. The material bridge (94) extends over an angular sector (99) of the inner ring, is centered on the main axis (A72) of the bearing and has a vertex angle (α1) greater than or equal to the vertex angle (β2) of an angular sector occupied by two rolling elements (76), preferably greater than or equal to the vertex angle (β5) of an angular sector occupied by five rolling elements, preferably greater than or equal to the vertex angle (β9) of an angular sector occupied by nine rolling elements, more preferably greater than or equal the vertex angle (β13) of an angular sector occupied by thirteen rolling elements. The inner ring (72) further comprises at least one hole (88) for fixing the bearing (25).

Dependencies are inferred from the claim text.