An idler roller assembly having a roller tube which has a constant diameter throughout its length and does not have machined ends or ends formed with integrally formed flanges. An end cap is attached to each end of the roller tube which has a hollow internal bore and an outer seal insert retained within the hollow internal bore of the end cap and having an internal recess and adapted for rotation with the roller tube and end cap. A stationary inner seal is located in the recess and having a flexible lip. Also included is a bearing retained within the internal bore of the end cap as well as a stationary shaft extending through a hollow interior of the roller tube wherein the inner seal is fixed to the stationary shaft. There is also provided an inner fastening member retaining the bearing in position within the end cap.
