This series of rolier sleeve type friction product release and, matters relating to the delivery of cargo weight 10~30kg applicable for light load conveying roller product force depends on the load, and in a certain range automatic adjustment.
Advantages:
Using polyamide as product put a set of, give full play to the materia1 inherent self lubrication and wear resistance;precision ball bearings and plastic bearing,end cover design formed the key bearing component part. lt is not only beautiful, more important is the roller running more quietly; roller at the end of the end cover, effectiveIy prevents the working environment in the dust and splash water entry; steel sprocket compared to steel sprocket more wear-resisting.
Disadvantages:
Due to the characteristics of roller, load is small; product release sleeve and bearing assembly materials have certain requirements on the use of the temperature of the environment, not in the environment of high temperature use.

| Material of tube | Tube diameter and wall thickness |
| Galvanized steel | Φ 50*1.5 |
| Φ 60*2.0 | |
| Stainless steel | Φ 50*1.5 |
| Φ 60*2.0 |
| Roller diameter(D) | Diameter of axle(d) | Suitable for chain | |
| Φ 50 | Φ 12/15 | L=W+41 | 08B14T |
| Φ 60 | Φ 12/15 | L=W+41 | 08B14T |
| Φ12(M8*15) Φ15(M10*20) | |||