6.2.3 RF Plastic Roller Plus Plastic Sleeve Conveyor Chain
Large Pitch Conveyor Chain: Maintenance-free type for light load
RF Plastic Roller Plus Plastic Sleeve Conveyor Chain is ideal for maintenance-free, light-load applications. It is not suitable for conveying bulk materials (such as grains) or when the application exposes it to rough handling (Figure 6.8).
Figure 6.8 RF Plastic Roller Plus Plastic Sleeve Conveyor Chain
Figure 6.9 Wear comparison
Construction and Features
See the section on Plastic Sleeve Chain in Small Pitch Conveyor Chains (Figure 6.9).
Standard RF Conveyor Chain sprockets may be used.
Selection and Handling
The maximum allowable load of this chain is smaller than the standard series. For example, maximum allowable load of RF05100-R with plastic sleeve is 5.20 kN (with 8-tooth sprocket), while for the standard type it is 9.80 kN. This represents 47 percent reduction in the maximum allowable load. The coefficient of rolling friction is also 47 percent lower (0.08 versus 0.15 for standard type without lubrication). Therefore, it is important to note that while the maximum allowable chain tension is reduced, the coefficient of friction is also reduced commensurately. The result is that the allowable conveyed object weight on the conveyor remains the same.