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 operating within the floor while the rollers acquire the dwell load.
2.F-roller
F-roller Conveyor Chains have rollers together with the similar outer diameter as that of R-roller but with flanges.
Since the flanges can receive the force acting to the lateral sides of your chain, the chain is appropriate for getting both a live load as well as a lateral load.
three.M-roller
M-roller Conveyor Chains have rollers with an outer diameter slightly smaller sized than the width of plates.
An M roller is intended for smoother engagement with the sprockets. Because the chain is light in fat, it is actually suitable 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 suitable for vertical conveyance 
exactly where rollers are less prone to be worn.
five.BR- and BF- Rollers (with built-in bearings)
BR- and BF- Roller Conveyor Chains have mostly identical structure to R-roller and F Conveyor Chains, respectively, except for your bearings inside for smoother rotation.
six.UR- and UF- Rollers (substantial clearance among bushing and roller)
UR- and UF- Roller Conveyor Chains have largely identical structure to R-roller and F Conveyor Chains, respectively. However, the clearances amongst the outer diameter of bushings plus the inner diameter in the rollers are enlarged to prevent the rollers from repairing when foreign issues enter.
