Double Pitch Chain with top rollers

Product photo
  • A free flow chain using a Double Pitch Chain base with a raised link plate with freely rotating top rollers attached.
  • The width of the chain itself is smaller than other free flow chains. The top rollers are supported by plates on both sides, making the chain ideal for rugged free flow conveyors.
  • We have a lineup of Standard specifications, Lambda (lube-free) specifications, and SS (stainless steel) specifications.
  • *We also manufacture NP specifications (nickel plating), so please contact us.

Application

  • Ideal for conveying heavy objects at low speeds, and especially is often used in automotive production equipment.
Application

Catalogs ・Instruction Manuals

About each specification

Standard Series

  • ・All base chain parts except for the rollers use heat treated hardened steel.
  • ・Base chain rollers available in steel (S and R rollers) and plastic (R rollers only). Top rollers available in plastic or steel.
  • Steel roller
  • ・All parts are steel that has been heat treated for hardness.
  • ・Operating Temperature Range :-10℃~150℃
  • ・Requires additional lubrication
  • Engineering plastic R rollers
  • ・30% lighter than steel rollers, 5 - 7dB quieter
  • ・Running resistance (30% less running resistance
           than steel chains)
  • ・Operating Temperature Range :-10℃~80℃
  • ・Additional lubrication is required between pins and bushes. Engineering plastic rollers are white.

Lambda (Lube-free) specifications

  • ・Uses special oil-impregnated sintered bushes for lube-free, long life operation. (Steel top rollers still require additional lubrication. )
  • ・Base chain rollers available in steel (S and R rollers) and plastic (R rollers only). Top rollers available in plastic or steel.
  • ・While it has the same allowable load as standard series, the inner and outer plates have been treated with a black oxide coating for identification purposes.
  • ・Operating Temperature Range :-10℃~150℃
  • ・Avoid use around chemicals or in water, or in washing/degreasing applications.

SS (Stainless Steel) specifications

  • ・The chain base and base roller are made of 18-8SUS(SUS304 equivalent) stainless steel for corrosion resistance.
  • ・Base chain rollers available in stainless steel (S and R rollers) and plastic (R rollers only). Top rollers available in plastic rollers, KV rollers, and stainless steel rollers.
  • Steel roller
  • ・Base chain and base chain rollers are stainless steel for corrosion resistance.
  • ・Operating Temperature Range :-20℃~400℃
  • ・Requires additional lubrication
  • Engineering plastic R rollers
  • ・30% lighter than steel rollers, 5 - 7dB quieter
  • ・Running resistance (30% less running resistance
           than steel chains)
  • ・Operating Temperature Range :-10℃~80℃
  • ・Additional lubrication is required between pins and bushes. Engineering plastic rollers are white.

Construction


[Click to enlarge ]
  • ・"X" indicates a press fit.

List of Models

※Click the name for more information.

Base chain Base chain
roller
Plastic top roller types Steel top roller types Pitch
mm
Roller dia.
mm
Inner width
of inner link
mm
Plastic
rollers
KV
rollers
Steel roller
(Stainless steel roller ※2)
Lambda
Rollers
Standard Series Double Pitch Chains steel RF2040S-TRP ---RF2040S-TR RF2040S-TRLM 25.4 7.92 7.95
RF2050S-TRP ---RF2050S-TR RF2050S-TRLM 31.75 10.16 9.53
RF2060S-TRP ---RF2060S-TR RF2060S-TRLM 38.1 11.91 12.7
RF2080S-TRP ---RF2080S-TR RF2080S-TRLM 50.8 15.88 15.88
RF2100S-TRP ---RF2100S-TR --- 63.5 19.05 19.05
RF2040R-TRP ---RF2040R-TR RF2040R-TRLM 25.4 15.88 7.95
RF2050R-TRP ---RF2050R-TR RF2050R-TRLM 31.75 19.05 9.53
RF2060R-TRP ---RF2060R-TR RF2060R-TRLM 38.1 22.23 12.7
RF2080R-TRP ---RF2080R-TR RF2080R-TRLM 50.8 28.58 15.88
RF2100R-TRP ---RF2100R-TR --- 63.5 39.69 19.05
Engineering plastic RF2040RP-TRP ---RF2040RP-TR --- 25.4 15.88 7.95
RF2050RP-TRP ---RF2050RP-TR --- 31.75 19.05 9.53
RF2060RP-TRP ---RF2060RP-TR --- 38.1 22.23 12.7
RF2080RP-TRP ---RF2080RP-TR --- 50.8 28.58 15.88
RF2100RP-TRP ---RF2100RP-TR --- 63.5 39.69 19.05
Lambda Series
(LMC)
※1
Double Pitch Chains steel RF2040S-LMC-TRP ---RF2040S-LMC-TR RF2040S-LMC-TRLM 25.4 7.92 7.95
RF2050S-LMC-TRP ---RF2050S-LMC-TR RF2050S-LMC-TRLM 31.75 10.16 9.53
RF2060S-LMC-TRP ---RF2060S-LMC-TR RF2060S-LMC-TRLM 38.1 11.91 12.7
RF2080S-LMC-TRP ---RF2080S-LMC-TR --- 50.80 15.88 15.88
RF2040R-LMC-TRP ---RF2040R-LMC-TR RF2040R-LMC-TRLM 25.4 15.88 7.95
RF2050R-LMC-TRP ---RF2050R-LMC-TR RF2050R-LMC-TRLM 31.75 19.05 9.53
RF2060R-LMC-TRP ---RF2060R-LMC-TR RF2060R-LMC-TRLM 38.1 22.23 12.7
RF2080R-LMC-TRP ---RF2080R-LMC-TR --- 50.80 28.58 15.88
Engineering plastic RF2040RP-LMC-TRP ---RF2040RP-LMC-TR --- 25.4 15.88 7.95
RF2050RP-LMC-TRP ---RF2050RP-LMC-TR --- 31.75 19.05 9.53
RF2060RP-LMC-TRP ---RF2060RP-LMC-TR --- 38.1 22.23 12.7
SS Series
(stainless steel series)
Double Pitch Chains Stainless RF2040S-SS-TRP RF2040S-SS-TR-PKV RF2040S-SS-TR --- 25.4 7.92 7.95
RF2050S-SS-TRP RF2050S-SS-TR-PKV RF2050S-SS-TR --- 31.75 10.16 9.53
RF2060S-SS-TRP RF2060S-SS-TR-PKV RF2060S-SS-TR --- 38.1 11.91 12.7
RF2080S-SS-TRP ---RF2080S-SS-TR --- 50.8 15.88 15.88
RF2100S-SS-TRP ---RF2100S-SS-TR --- 63.5 19.05 19.05
RF2040R-SS-TRP ---RF2040R-SS-TR --- 25.4 15.88 7.95
RF2050R-SS-TRP ---RF2050R-SS-TR --- 31.75 19.05 9.53
RF2060R-SS-TRP ---RF2060R-SS-TR --- 38.1 22.23 12.7
RF2080R-SS-TRP ---RF2080R-SS-TR --- 50.8 28.58 15.88
RF2100R-SS-TRP ---RF2100R-SS-TR --- 63.5 39.69 19.05
Engineering plastic RF2040RP-SS-TRP --------- 25.4 15.88 7.95
RF2050RP-SS-TRP --------- 31.75 19.05 9.53
RF2060RP-SS-TRP --------- 38.1 22.23 12.7
RF2080RP-SS-TRP --------- 50.8 28.58 15.88
RF2100RP-SS-TRP --------- 63.5 39.69 19.05

Notes
 1.For the sake of convenience, the base chain is the part of the chain with the top rollers removed.
 2.※1Steel top rollers require additional lubrication, even if the base chain is Lambda Chain.
 3.※2If the chain base is SS specification, it will be a stainless steel roller.

When selecting sprocket specifications

It is necessary to select a sprocket specification that corresponds to the customer's operating environment and the chain specification used.

Dedicated sprockets are required for Double pitch chain (base chain R rollers) with top rollers, because the tooth of standard Double pitch sprockets (for R roller) contact the top roller.

Please use standard Double pitch steel sprockets for base chain S rollers.

Standard RS steel sprockets can be used when the number of sprocket teeth is 30 or more.

Click here for the chain/sprocket compatibility table.