Top Roller Chains

  • Top Roller Chains are Free Flow Chains using taller plates than Double Pitch or RS Chains and freely rotating top rollers.
  • Tsubaki offers a selection of standard series chains as well as Lambda Series (lube-free), SS Series (stainless steel), Poly Steel Series, and NP Series (electroless nickel plated).
  • Refer to the chart below when combining top rollers and base chain rollers

List of products

※ Click the model No. for detailed information.

※ Please refer to the Selection Guide for features and applications of each specifications.

Base chain Base chain
roller
Plastic top roller types Steel top roller types Max. allowable tension
kN{kgf}
Pitch
mm
Roller dia.
mm
Inner width
of inner link
mm
Plastic
rollers
KV
rollers
Steel
roller
Stainless
steel roller
Lambda
Rollers
Standard Series Double Pitch steel RF2040S-TRP ---RF2040S-TR ---RF2040S-TRLM 2.65{270} 25.4 7.92 7.95
RF2050S-TRP ---RF2050S-TR ---RF2050S-TRLM 4.31{440} 31.75 10.16 9.53
RF2060S-TRP ---RF2060S-TR ---RF2060S-TRLM 6.28{640} 38.1 11.91 12.7
RF2080S-TRP ---RF2080S-TR ---RF2080S-TRLM 10.7{1090} 50.8 15.88 15.88
RF2100S-TRP ---RF2100S-TR ------17.1{1740} 63.5 19.05 19.05
RF2040R-TRP ---RF2040R-TR ---RF2040R-TRLM 2.65{270} 25.4 15.88 7.95
RF2050R-TRP ---RF2050R-TR ---RF2050R-TRLM 4.31{440} 31.75 19.05 9.53
RF2060R-TRP ---RF2060R-TR ---RF2060R-TRLM 6.28{640} 38.1 22.23 12.7
RF2080R-TRP ---RF2080R-TR ---RF2080R-TRLM 10.7{1090} 50.8 28.58 15.88
RF2100R-TRP ---RF2100R-TR ------17.1{1740} 63.5 39.69 19.05
Engineering plastic RF2040RP-TRP ---RF2040RP-TR ------0.44{45} 25.4 15.88 7.95
RF2050RP-TRP ---RF2050RP-TR ------0.69{70} 31.75 19.05 9.53
RF2060RP-TRP ---RF2060RP-TR ------1.03{105} 38.1 22.23 12.7
RF2080RP-TRP ---RF2080RP-TR ------1.77{180} 50.8 28.58 15.88
RF2100RP-TRP ---RF2100RP-TR ------2.55{260} 63.5 39.69 19.05
RS steel RS40-TRP ---RS40-TR ---RS40-TRLM 2.65{270} 12.70 7.92 7.95
RS50-TRP ---RS50-TR ---RS50-TRLM 4.31{440} 15.875 10.16 9.53
RS60-TRP ---RS60-TR ---RS60-TRLM 6.28{640} 19.05 11.91 12.70
RS80-TRP ---RS80-TR ---RS80-TRLM 10.7{1090} 25.40 15.88 15.88
RS100-TRP ---RS100-TR ------17.1{1740} 31.75 19.05 19.05
Lambda Series
(LMC)
※1
Double Pitch steel RF2040S-LMC-TRP ---RF2040S-LMC-TR ---RF2040S-LMC-TRLM 2.65{270} 25.4 7.92 7.95
RF2050S-LMC-TRP ---RF2050S-LMC-TR ---RF2050S-LMC-TRLM 4.31{440} 31.75 10.16 9.53
RF2060S-LMC-TRP ---RF2060S-LMC-TR ---RF2060S-LMC-TRLM 6.28{640} 38.1 11.91 12.7
RF2080S-LMC-TRP ---RF2080S-LMC-TR ------10.7{1090} 50.80 15.88 15.88
RF2040R-LMC-TRP ---RF2040R-LMC-TR ---RF2040R-LMC-TRLM 2.65{270} 25.4 15.88 7.95
RF2050R-LMC-TRP ---RF2050R-LMC-TR ---RF2050R-LMC-TRLM 4.31{440} 31.75 19.05 9.53
RF2060R-LMC-TRP ---RF2060R-LMC-TR ---RF2060R-LMC-TRLM 6.28{640} 38.1 22.23 12.7
RF2080R-LMC-TRP ---RF2080R-LMC-TR ------10.7{1090} 50.80 28.58 15.88
Engineering plastic RF2040RP-LMC-TRP ---RF2040RP-LMC-TR ------0.44{ 45} 25.4 15.88 7.95
RF2050RP-LMC-TRP ---RF2050RP-LMC-TR ------0.69{ 70} 31.75 19.05 9.53
RF2060RP-LMC-TRP ---RF2060RP-LMC-TR ------1.03{105} 38.1 22.23 12.7
RS steel RS40-LMC-TRP ---RS40-LMC-TR ---RS40-LMC-TRLM 2.65{270} 12.70 7.92 7.95
RS50-LMC-TRP ---RS50-LMC-TR ---RS50-LMC-TRLM 4.31{440} 15.875 10.16 9.53
RS60-LMC-TRP ---RS60-LMC-TR ---RS60-LMC-TRLM 6.28{640} 19.05 11.91 12.70
RS80-LMC-TRP ---RS80-LMC-TR ---RS80-LMC-TRLM 10.7{1090} 25.40 15.88 15.88
RS100-LMC-TRP ---RS100-LMC-TR ------17.1{1740} 31.75 19.05 19.05
SS Series
(stainless steel series)
Double Pitch Stainless RF2040S-SS-TRP RF2040S-SS-TR-PKV ---RF2040S-SS-TR ---0.44{ 45} 25.4 7.92 7.95
RF2050S-SS-TRP RF2050S-SS-TR-PKV ---RF2050S-SS-TR ---0.69{ 70} 31.75 10.16 9.53
RF2060S-SS-TRP RF2060S-SS-TR-PKV ---RF2060S-SS-TR ---1.03{105} 38.1 11.91 12.7
RF2080S-SS-TRP ------RF2080S-SS-TR ---1.77{180} 50.8 15.88 15.88
RF2100S-SS-TRP ------RF2100S-SS-TR ---2.55{260} 63.5 19.05 19.05
RF2040R-SS-TRP ------RF2040R-SS-TR ---0.44{ 45} 25.4 15.88 7.95
RF2050R-SS-TRP ------RF2050R-SS-TR ---0.69{ 70} 31.75 19.05 9.53
RF2060R-SS-TRP ------RF2060R-SS-TR ---1.03{105} 38.1 22.23 12.7
RF2080R-SS-TRP ------RF2080R-SS-TR ---1.77{180} 50.8 28.58 15.88
RF2100R-SS-TRP ------RF2100R-SS-TR ---2.55{260} 63.5 39.69 19.05
Engineering plastic RF2040RP-SS-TRP ------------0.44{ 45} 25.4 15.88 7.95
RF2050RP-SS-TRP ------------0.69{ 70} 31.75 19.05 9.53
RF2060RP-SS-TRP ------------1.03{105} 38.1 22.23 12.7
RF2080RP-SS-TRP ------------1.77{180} 50.8 28.58 15.88
RF2100RP-SS-TRP ------------2.55{260} 63.5 39.69 19.05
RS Stainless RS40-SS-TRP RS40-SS-TR-PKV ---RS40-SS-TR ---0.44{ 45} 12.70 7.92 7.95
RS50-SS-TRP RS50-SS-TR-PKV ---RS50-SS-TR ---0.69{ 70} 15.875 10.16 9.53
RS60-SS-TRP RS60-SS-TR-PKV ---RS60-SS-TR ---1.03{105} 19.05 11.91 12.70
RS80-SS-TRP ------RS80-SS-TR ---1.77{180} 25.40 15.88 15.88
RS100-SS-TRP ------RS100-SS-TR ---2.55{260} 31.75 19.05 19.05

Notes
 1. For the sake of convenience, the base chain is the part of the chain with the top rollers removed.
 2. *1. When using steel top rollers with Lambda Series, the top rollers will require lubrication.

Base chain

1. Standard Series

Base chains available with steel rollers (S, R) and plastic R-rollers.

With steel rollers

・ All rollers use hardened steel.
・ Operating temperature range: -10oC to 150oC.
・ Requires additional lubrication

With plastic R-rollers

・ The R-roller of the base chain is engineering plastic.
・ Performance with plastic R-rollers.
       Lightweight (40% lighter than with steel rollers)
       Quiet (5-7dB quieter than steel chains)
      Running resistance (30% less running resistance
       than steel chains)
       Roller color: White
       Operating temperature range: -10oC to 80oC.
      *The area between pins and bushes must generally
       be lubricated.


2. Lambda Series (lube-free)

The bushes of the base chain are oil-impregnated sintered bushes and do not require additional lubrication. (Steel top rollers will require additional lubrication.)

While the allowable load is the same as with standard series, the inner and outer plates have been treated with black oxide for identification purposes.

Operating temperature range: -10oC to 150oC.

Avoid use around chemicals or in water, or in washing/degreasing applications.

3. Stainless steel series (SS Series)

Stainless steel rollers (S, R) and plastic R-rollers available.

Stainless steel rollers

・ All parts use 18-8SUS (SUS304 equivalent).
・ Operating temperature range: -20oC to 400oC
・ Requires additional lubrication

With plastic R-rollers

・ The R-roller of the base chain is engineering plastic.
・ Performance with plastic R-rollers.
       Lightweight (40% lighter than with steel rollers)
       Quiet (5-7dB quieter than steel chains)
      Running resistance (30% less running resistance
       than steel chains)
       Roller color: White
       Operating temperature range: -10oC to 80oC.
      *The area between pins and bushes must generally
       be lubricated.

4. NP Series

Nickel plating available for Standard and Lambda Series

No. of links per unit

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

Chain size No. of links per unit Chain size No. of links per unit
RF2040120RS40240
RF205096RS50192
RF206080RS60160
RF208060RS80120
RF210048RS10096

Top roller specifications

1. Engineering plastic roller

Plastic roller

・ Material: Polyacetal (white)

・ Operating temperature range: -20oC to 80oC

KV rollers

・ Material: Super engineering plastic (black)

・ Operating temperature range: -20oC to 180oC

2. Steel roller

Steel roller

・ Material: Hardened steel

・ Operating temperature range: -10oC to 150oC.

・ Lubrication required

Stainless steel roller

・ Material: 18-8SUS (SUS304 equivalent)

・ Operating temperature range: -20oC to 400oC

・ Lubrication required

Lambda Rollers

・ Material: Steel

・ Operating temperature range: -10oC to 150oC.

・ Additional lubrication: Not required

※ Requires additional lubrication when base chains are standard series.

Sprocket

Sprockets for Double Pitch Chains with Top Rollers

When the base chain rollers are R-rollers, standard sprockets for Double Pitch Chain (R-rollers) cannot be used as the sprocket teeth contact the top rollers. Therefore, please use a sprocket for top roller chain.

When the base chain rollers are S-rollers, standard sprockets for RF Double Pitch Chain (S-rollers) can be used. When using RS sprockets, only S-rollers can be used, and the sprocket must have 30T or more.