| φD1（mm) | φD2(mm) | L(mm) | δ(mm) | φd(mm) | Material | Surface Tre | |
| ≥38 | ≤300 | 200-2000 | 1.5-5.0 | φ12/φ15/20φ25 | Carbon Steel Or Stainless | Zincorplated/Set of glue/rubber casting | |
| Double sprocket: 08B11T/08B14T Material: Carbon steel / stainless steel / plastic, special specifications can be customized Structure: steel tapered cylinder, precision bearings Features: load, low noise, durable, flexible rotation Uses: suitable for 90 degrees, 180 degrees, turn the ring power, no power roller | |||||||