| 摘要 |
A conveyor roller or idler which comprises a drum (16, 17 or 18) supported on a shaft (4) by a pair of end caps (2) located in opposite ends of the drum. The end caps include first and second relatively movable coorperant portions (20, 13) having tapered surfaces (12, 15). Screws (14) are provided for urging the two portions (20, 13) into engagement, the tapered surfaces (12, 15), on engagement, urging one of the portions (20) radially outward and into frictional engagement within the inner wall of the drum, thereby securing the end cap in position in the drum. The end caps (2) are preferably formed from a plastics material and the drum may be formed from or covered by an unplasticised polyvinylchloride (17 or 18). |
