one.R-roller
R-roller Conveyor Chains have rollers with an outer diameter more substantial compared to the width of plates.
Because the rollers can quickly roll, the chain is suitable for running around the floor while the rollers get the dwell load.
two.F-roller
F-roller Conveyor Chains have rollers using the same outer diameter as that of R-roller but with flanges.
Since the flanges can obtain the force acting on the lateral sides of the chain, the chain is appropriate for obtaining the two a live load in addition to a lateral load.
three.M-roller
M-roller Conveyor Chains have rollers with an outer diameter slightly smaller sized compared to the width of plates.
An M roller is developed for smoother engagement together with the sprockets. Since the chain is light in fat, it is actually appropriate for vertical conveyance.
four.S-roller
S-roller Conveyor Chains have rollers with an outer diameter smaller than that of the M-roller.
The chain is appropriate for vertical conveyance exactly where rollers are significantly less likely to be worn.
five.BR- and BF- Rollers (with built-in bearings)
BR- and BF- Roller Conveyor Chains have primarily identical construction to R-roller and F Conveyor Chains, respectively, except to the bearings inside for smoother rotation.
6.UR- and UF- Rollers (substantial 
clearance among bushing and roller)
UR- and UF- Roller Conveyor Chains have generally identical structure to R-roller and F Conveyor Chains, respectively. However, the clearances amongst the outer diameter of bushings along with the inner diameter from the rollers are enlarged to stop the rollers from repairing when foreign issues enter.
