Endless belt power transmission systems or components – Positive drive belt – Belt formed of rigid links
Patent
1986-04-07
1987-11-03
Suchfield, George A.
Endless belt power transmission systems or components
Positive drive belt
Belt formed of rigid links
474216, F16G 1306
Patent
active
047040998
ABSTRACT:
The invention relates to a roller chain for chain drives, which has a plurality of inner and outer links alternating in tandem. The inner links have at least two inner plates having pairs of pin holes and having pin bearings disposed between the pin holes. The outer links contain each at least two outer plates which are joined together by at least two pins fastened in them. For the articulation of the outer links with two adjacent inner links each, the one pin of each outer link reaches through one of the pairs of pinholes and the associated pin bearing of one of the adjacent inner links, and the other pin of each outer link reaches through one of the pairs of pin holes and the associated pin bearing of the other of the adjacent inner links. The pin bearings are encompassed by rollers disposed for loose rotation between the inner plates. According to the invention the pin bearings consist of bearing shells affixed to the inner plates and only partially encompassing the pins, which, when the chain is in the outstretched state, are situated opposite clips disposed within the rollers and between the inner plates, and which also encompass the pins only partially, which together with the bearing shells encompass the pins on circumferential sections totaling less than 360.degree., so that they are movable circumferentially relative to the bearing shells.
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