Single -bearing supporting roller

The utility model provides a single -bearing supporting roller comprises back shaft, bearing and roller circle, and bearing inner race interference fit installs on the back shaft, and the roller circle interference fit install on bearing inner race, back shaft and roller circle between only install a bearing to sealing device is installed respectively to the bearing both sides, sealing device be labyrinth seals. Beneficial effect lies in: simple structure, the width is little, can install dead angle position and the supporting use of current bearing roller, makes sticky tape smooth transition stable, has eliminated the problem that the wearing and tearing fish tail is serious, the life -span is reduced that conveyer belt dead angle problem was brought. 种单轴承支撑托辊，由支撑轴、轴承和辊圈组成，轴承内圈过盈配合安装在支撑轴上，辊圈过盈配合安装在轴承外圈上；所述的支撑轴和辊圈之间只安装有个轴承，并且轴承两侧分别安装有密封装置；所述的密封装置为迷宫密封。有益效果在于：结构简单，宽度小，能够安装到死角位置与现有托辊配套使用，使胶带过渡平滑稳定，消除了输送机皮带死角问题带来的磨损划伤严重、寿命降低的问题。