Double Pitch Chain with outboard rollers

Product photo
  • A free flow chain using a Double Pitch Chain base with an extended pin with freely rotating outboard rollers attached.
  • Since numerous rollers can be installed, Outboard Roller Chain is suitable for conveyors on which small objects are placed directly.
  • 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.

Features

  • ・Outboard rollers allow for a compact conveyor.
  • ・The ability to flex backwards allows easy layout on the return side.
  • ・Multiple outboard rollers can be installed, making the chain ideal for conveyors where small items are directly conveyed on the outboard rollers.
Features

Catalogs ・Instruction Manuals

About each specification

Standard Series

  • ・The base chain is steel, with R rollers available in steel or plastic.
  • 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 sintered oil-impregnated bushes for lube-free, long life operation.
    ※Lubrication is required on steel outboard rollers.
  • ・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.
  • ・Available up to RF2060.
  • ・Outboard rollers available in engineering plastic (plastic rollers, plastic brake rollers, electroconductive rollers) and steel.

SS (Stainless Steel) specifications

  • ・All parts use 18-8SUS(SUS304 equivalent) stainless steel for corrosion resistance, except for the pin which uses precipitation hardened stainless steel.
  • ・Stainless steel S rollers and plastic or stainless steel double pitch R rollers available.
  • 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 :-20℃~80℃
  • ・Additional lubrication is required between pins and bushes. Engineering plastic rollers are white.

Construction


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

Attachment positioning of outboard rollers

When staggered When attached in a crosswise pattern.
Staggered installation Parallel installation
  • ・The diagram shows an example of outboard rollers attached every link in a staggered pattern.
  • ・When outboard rollers are attached every link in a staggered installation, plastic brake rollers are normally attached every three links (cross-hatched rollers in diagram).
  • ・Example of parallel installation with outboard rollers attached every other link. Outboard rollers can be attached freely, but not every link.
  • ・When attached in parallel every other link, plastic brake rollers are normally attached every six links (cross-hatched rollers in diagram).

List of Models

※Click the name for more information.

Base chain Base chain
roller
Plastic outboard rollers Plastic outboard rollers with brakes Steel outboard rollers Pitch
mm
Roller dia.
mm
Inner width
of inner link
mm
Plastic
rollers
Electroconductive
rollers
KV
rollers
Plastic rollers
with brakes
Electroconductive rollers
with spring brakes
Steel roller
(Stainless steel roller ※3)
Lambda
Rollers
Standard Series Double Pitch Chains steel RF2040S-SRP RF2040S-SRPE --- RF2040S-SRPB RF2040S-SRPBE RF2040S-SR RF2040S-SRLM 25.4 7.92 7.95
RF2050S-SRP RF2050S-SRPE --- RF2050S-SRPB RF2050S-SRPBE RF2050S-SR RF2050S-SRLM 31.75 10.16 9.53
RF2060S-SRP RF2060S-SRPE --- RF2060S-SRPB RF2060S-SRPBE RF2060S-SR RF2060S-SRLM 38.1 11.91 12.7
RF2080S-SRP --- --- --- --- RF2080S-SR RF2080S-SRLM 50.8 15.88 15.88
RF2100S-SRP --- --- --- --- RF2100S-SR --- 63.5 19.05 19.05
RF2040R-SRPL RF2040R-SRPEL --- RF2040R-SRPBL RF2040R-SRPBEL RF2040R-SRL RF2040R-SRLML 25.4 15.88 7.95
RF2050R-SRPL RF2050R-SRPEL --- RF2050R-SRPBL RF2050R-SRPBEL RF2050R-SRL RF2050R-SRLML 31.75 19.05 9.53
RF2060R-SRPL RF2060R-SRPEL --- RF2060R-SRPBL RF2060R-SRPBEL RF2060R-SRL RF2060R-SRLML 38.1 22.23 12.7
Engineering plastic RF2040RP-SRPL RF2040RP-SRPEL --- RF2040RP-SRPBL RF2040RP-SRPBEL RF2040RP-SRL --- 25.4 15.88 7.95
RF2050RP-SRPL RF2050RP-SRPEL --- RF2050RP-SRPBL RF2050RP-SRPBEL RF2050RP-SRL --- 31.75 19.05 9.53
RF2060RP-SRPL RF2060RP-SRPEL --- RF2060RP-SRPBL RF2060RP-SRPBEL RF2060RP-SRL --- 38.1 22.23 12.7
RF2080RP-SRPL RF2080RP-SRPEL --- RF2080RP-SRPBL RF2080RP-SRPBEL RF2080RP-SRL --- 50.8 28.58 15.88
RF2100RP-SRPL RF2100RP-SRPEL --- RF2100RP-SRPBL RF2100RP-SRPBEL RF2100RP-SRL --- 63.5 39.69 19.05
Lambda Series
※1
Double Pitch Chains steel RF2040S-LMC-SRP RF2040S-LMC-SRPE --- RF2040S-LMC-SRPB RF2040S-LMC-SRPBE RF2040S-LMC-SR RF2040S-LMC-SRLM 25.4 7.92 7.95
RF2050S-LMC-SRP RF2050S-LMC-SRPE --- RF2050S-LMC-SRPB RF2050S-LMC-SRPBE RF2050S-LMC-SR RF2050S-LMC-SRLM 31.75 10.16 9.53
RF2060S-LMC-SRP RF2060S-LMC-SRPE --- RF2060S-LMC-SRPB RF2060S-LMC-SRPBE RF2060S-LMC-SR RF2060S-LMC-SRLM 38.1 11.91 12.7
RF2080S-LMC-SRP --- --- --- --- RF2080S-LMC-SR --- 50.8 15.88 15.88
RF2040R-LMC-SRPL RF2040R-LMC-SRPEL --- RF2040R-LMC-SRPBL RF2040R-LMC-SRPBEL RF2040R-LMC-SRL RF2040R-LMC-SRLML 25.4 15.88 7.95
RF2050R-LMC-SRPL RF2050R-LMC-SRPEL --- RF2050R-LMC-SRPBL RF2050R-LMC-SRPBEL RF2050R-LMC-SRL RF2050R-LMC-SRLML 31.75 19.05 9.53
RF2060R-LMC-SRPL RF2060R-LMC-SRPEL --- RF2060R-LMC-SRPBL RF2060R-LMC-SRPBEL RF2060R-LMC-SRL RF2060R-LMC-SRLML 38.1 22.23 12.7
Engineering plastic RF2040RP-LMC-SRPL RF2040RP-LMC-SRPEL --- RF2040RP-LMC-SRPBL RF2040RP-LMC-SRPBEL RF2040RP-LMC-SRL --- 25.4 15.88 7.95
RF2050RP-LMC-SRPL RF2050RP-LMC-SRPEL --- RF2050RP-LMC-SRPBL RF2050RP-LMC-SRPBEL RF2050RP-LMC-SRL --- 31.75 19.05 9.53
RF2060RP-LMC-SRPL RF2060RP-LMC-SRPEL --- RF2060RP-LMC-SRPBL RF2060RP-LMC-SRPBEL RF2060RP-LMC-SRL --- 38.1 22.23 12.7
SS Series (18-8SUS)
※2
Double Pitch Chains Stainless RF2040S-SS-SRP RF2040S-SS-SRPE RF2040S-SS-SRPKV RF2040S-SS-SRPB RF2040S-SS-SRPBE RF2040S-SS-SR --- 25.4 7.92 7.95
RF2050S-SS-SRP RF2050S-SS-SRPE RF2050S-SS-SRPKV RF2050S-SS-SRPB RF2050S-SS-SRPBE RF2050S-SS-SR --- 31.75 10.16 9.53
RF2060S-SS-SRP RF2060S-SS-SRPE RF2060S-SS-SRPKV RF2060S-SS-SRPB RF2060S-SS-SRPBE RF2060S-SS-SR --- 38.1 11.91 12.7
RF2080S-SS-SRP --- --- --- --- RF2080S-SS-SR --- 50.8 15.88 15.88
RF2100S-SS-SRP --- --- --- --- RF2100S-SS-SR --- 63.5 19.05 19.05
RF2040R-SS-SRPL RF2040R-SS-SRPEL --- RF2040R-SS-SRPBL RF2040R-SS-SRPBEL RF2040R-SS-SRL --- 25.4 15.88 7.95
RF2050R-SS-SRPL RF2050R-SS-SRPEL --- RF2050R-SS-SRPBL RF2050R-SS-SRPBEL RF2050R-SS-SRL --- 31.75 19.05 9.53
RF2060R-SS-SRPL RF2060R-SS-SRPEL --- RF2060R-SS-SRPBL RF2060R-SS-SRPBEL RF2060R-SS-SRL --- 38.1 22.23 12.7
Engineering plastic RF2040RP-SS-SRPL RF2040RP-SS-SRPEL --- RF2040RP-SS-SRPBL RF2040RP-SS-SRPBEL RF2040RP-SS-SRL --- 25.4 15.88 7.95
RF2050RP-SS-SRPL RF2050RP-SS-SRPEL --- RF2050RP-SS-SRPBL RF2050RP-SS-SRPBEL RF2050RP-SS-SRL --- 31.75 19.05 9.53
RF2060RP-SS-SRPL RF2060RP-SS-SRPEL --- RF2060RP-SS-SRPBL RF2060RP-SS-SRPBEL RF2060RP-SS-SRL --- 38.1 22.23 12.7
RF2080RP-SS-SRPL RF2080RP-SS-SRPEL --- RF2080RP-SS-SRPBL RF2080RP-SS-SRPBEL RF2080RP-SS-SRL --- 50.8 28.58 15.88
RF2100RP-SS-SRPL RF2100RP-SS-SRPEL --- RF2100RP-SS-SRPBL RF2100RP-SS-SRPBEL RF2100RP-SS-SRL --- 63.5 39.69 19.05

Notes
 1.For the sake of convenience, the base chain is the part of the chain with the outboard rollers removed.
 2.※1Steel outboard rollers require additional lubrication, even if the base chain is Lambda Chain.
 3.※2 Only the pin attaching the outboard rollers to the chain is precipitation hardened stainless steel.
 4.Brakes used with electroconductive rollers and when the base chain is NP Series are spring brakes.
 5.Base chain rollers are S-rollers when KV Series outboard rollers are used.
 6.※3If 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.

Please use standard Double pitch steel sprockets for Double pitch chain with outboard rollers.

RS sprockets can be used when the number of sprocket teeth is 30 or more with S roller.

Click here for the chain/sprocket compatibility table.

No. of links per unit

Chains with outboard rollers are shipped in unit lengths (length of one chain) unless otherwise specified.

Chain size No. of links per unit
RF2040120
RF205096
RF206080
RF208060
RF210048