1.R-roller
R-roller Conveyor Chains have 
rollers with an outer diameter bigger than the width of plates.
Since the rollers can quickly roll, the chain is ideal for running to the floor while the rollers get the live load.
2.F-roller
F-roller Conveyor Chains have rollers with all the identical outer diameter as that of R-roller but with flanges.
Since the flanges can obtain the force acting about the lateral sides on the chain, the chain is suitable for obtaining the two a live load in addition to a lateral load.
3.M-roller
M-roller Conveyor Chains have rollers with an outer diameter somewhat smaller sized compared to the width of plates.
An M roller is built for smoother engagement with the sprockets. Because the chain is light in excess weight, it can be suitable for vertical conveyance.
four.S-roller
S-roller Conveyor Chains have rollers with an outer diameter smaller sized than that from the M-roller.
The chain is appropriate for vertical conveyance where rollers are significantly less more likely to be worn.
five.BR- and BF- Rollers (with built-in bearings)
BR- and BF- Roller Conveyor Chains have generally identical framework to R-roller and F Conveyor Chains, respectively, except for your bearings inside for smoother rotation.
six.UR- and UF- Rollers (large clearance amongst bushing and roller)
UR- and UF- Roller Conveyor Chains have mainly identical construction to R-roller and F Conveyor Chains, respectively. On the other hand, the clearances involving the outer diameter of bushings along with the inner diameter of the rollers are enlarged to stop the rollers from fixing when foreign issues enter.
DK Conveyor Chains Typical Conveyor Chain
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