Cam-follower roller with lubricant union

摘要

The roller comprises an outer ring (2) mounted via ball- or roller bearings (3,4) on a flanged bolt (1). An axial drilling (13) for lubricant runs from the flange end of the bolt to the opposite end (12), where the bolt is threaded. A radial drilling (18) runs from the axial one to the bearing inner race, and at one end of the bolt the axial drilling has a portion of polygonal profile (21). A connector (22), tapped (26) for connection to a lubrication system, is a press-fit in the polygonal portion, bring of mating external profile. The connector can be stepped (23-25) in the lengthwise direction, and can be of steel, aluminium alloy or plastics.