| 摘要 |
A method and a device for testing in an endless rotating chain link mechanism the bearing friction of the rollers of the chain which co-operate with stationary guide rails to guide the chain. A detector is provided adjacent the path of the rollers of the mechanism which makes frictional contact with the rollers, and which is arranged for limited movement in a direction parallel to the path of the rollers to be tested. The detector is biased in a direction which is opposite to the direction in which the rollers of the chain tend to displace the detector by the frictional contact therewith. The equilibrium position which is taken by the detector is a measure for the resistance to rotation of the rollers.
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