one.R-roller
R-roller Conveyor Chains have rollers with an outer diameter greater compared to the width of plates.
Because the rollers can very easily roll, the chain is ideal for running on the floor while the rollers obtain the reside 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 get the force acting about the lateral sides of the chain, the chain is suitable for acquiring both a live load as well as a lateral load.
3.M-roller
M-roller Conveyor Chains have rollers with an outer diameter somewhat smaller than the width of plates.
An M roller is designed for smoother engagement with the sprockets. Because the chain is light in bodyweight, it can be appropriate for vertical conveyance.
four.S-roller
S-roller Conveyor Chains have rollers with an outer diameter smaller sized than that of your M-roller.
The chain is suitable 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 primarily identical structure to R-roller and F Conveyor Chains, respectively, except for that bearings within for smoother rotation.
6.UR- and UF- Rollers (significant clearance concerning bushing and roller)
UR- and UF- Roller Conveyor Chains have mainly identical structure to R-roller and F Conveyor Chains, respectively. Having said that, the clearances between the outer diameter of bushings along with the inner diameter on the rollers are enlarged to prevent the rollers from fixing when foreign issues enter.
