| 摘要 |
A rocker bushing for a roller structure for supporting a boat on a trailer bed and having a male and female member formed of two cylindrical portions surrounding the shaft and supporting the roller. Each cylindrical member having a tapered longitudinal portion but terminating in a radially outwardly extending stop flange of increased radial thickness. The bearing surface of the rocker bushing positionally adjacent to the shaft is curved to allow the roller to gimbal or wobble to engage the angle of a boat hull. The integral construciton of the rocker bushing provides support across the entire width of the roller.
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