1.R-roller
R-roller Conveyor Chains have rollers with an outer diameter larger compared to the width of plates.
Because the rollers can effortlessly roll, the chain is appropriate for working around the floor even though the rollers receive the dwell load.
2.F-roller
F-roller Conveyor Chains have rollers using the same outer diameter as that of R-roller but with flanges.
Because the flanges can acquire the force acting around the lateral sides of the chain, the chain is appropriate for getting each a reside load plus a lateral load.
three.M-roller
M-roller Conveyor Chains have rollers with an outer diameter slightly smaller compared to the width of plates.
An M roller is made for smoother engagement with all the sprockets. Since the chain is light in fat, it really is ideal for vertical conveyance.
4.S-roller
S-roller Conveyor Chains have rollers with an outer diameter smaller than that with the M-roller.
The chain is ideal for vertical conveyance the place rollers are much less likely to be worn.
5.BR- and BF- Rollers (with built-in bearings)
BR- and BF- Roller Conveyor Chains have mainly identical construction to R-roller and F Conveyor Chains, respectively, except for the bearings within for smoother rotation.
6.UR- and UF- Rollers (massive clearance between bushing and roller)
UR- and UF- Roller Conveyor Chains have typically identical structure to R-roller and F Conveyor Chains, respectively. Nevertheless, the clearances in between the 
outer diameter of bushings and the inner diameter on the rollers are enlarged to prevent the rollers from repairing when foreign matters enter.
