spring-loaded idler 弹簧托辊 ; 装簧空转轮

spring loaded idler 装簧空转轮 ; 卷筒纸拉力调节辊

IDLER STRAIN SPRING 涨紧弹簧

spring idler 弹簧托辊

idler compression spring 拉紧机构弹簧

track idler recoil spring 履带导向轮缓冲弹簧

pre-stress spring idler 预应力弹簧托辊

spring loaded idler rollers 弹簧加载空转轮滚柱

Dual-spring adjustable absorber idler 双弹簧可调缓冲托辊组