1.R-roller
R-roller Conveyor Chains have rollers with an outer diameter larger than the width of plates.
Since the rollers can effortlessly roll, the chain is suitable for running about the floor whilst the rollers receive the dwell load.
two.F-roller
F-roller Conveyor Chains have rollers with the very same outer diameter as that of R-roller but with flanges.
Because the flanges can receive the force acting to the lateral sides of the chain, the chain is ideal for acquiring each a live load and a lateral load.
3.M-roller
M-roller Conveyor Chains have rollers with an outer diameter slightly smaller compared to the width of plates.
An M roller is developed for smoother engagement with all the sprockets. Because the chain is light in bodyweight, it is actually ideal for 
vertical conveyance.
4.S-roller
S-roller Conveyor Chains have rollers with an outer diameter smaller sized than that with the M-roller.
The chain is ideal for vertical conveyance where rollers are significantly less prone to be worn.
five.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 that bearings within for smoother rotation.
six.UR- and UF- Rollers (big clearance among bushing and roller)
UR- and UF- Roller Conveyor Chains have largely identical construction to R-roller and F Conveyor Chains, respectively. Even so, the clearances in between the outer diameter of bushings and the inner diameter from the rollers are enlarged to avoid the rollers from fixing when foreign matters enter.
