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ANSI Lambda Lube Free
Roller Chain


 

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BS Lambda Chain

BS X-Lambda Chain

ANSI Lambda Chain

ANSI Lambda Lube Free Roller Chain

lambda-logo

Tsubaki's Lambda Chains were the first in the industry to use a special oil-impregnated bush. Since their launch in 1988, they have been adopted for diverse industries and applications, and their performance has been highly rated. Tsubaki has a wide line-up of lube-free, long life products that help customers reduce costs.

Single Strand Details

bs-lambda ANSI Lambda Chain
Dimensions in mm
Tsubaki Chain No. Pitch
p		 Roller Diameter
d1		 Inner Width
b1
RS40-LMD-1 12.70 1/2" 7.95 7.55
RS50-LMD-1 15.875 5/8" 10.16 9.26
RS60-LMD-1 19.05 3/4" 11.91 12.28
RS80-LMD-1 25.40 1" 15.88 15.48
RS100-LMD-1 31.75 1 1/4" 19.05 18.70
RS120-LMD-1 38.10 1 1/2" 22.23 24.75
RS140-LMD-1 44.45 1 3/4" 25.40 24.75
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter
d2		 Length
L1		 Length
L2		 Length
L		 Thickness
T		 Thickness
t		 Height
H (max.)
RS40-LMD-1 3.97 8.78 10.45 20.00 2.00 1.50 12.00
RS50-LMD-1 5.09 10.75 12.45 24.00 2.40 2.00 15.00
RS60-LMD-1 5.96 13.75 15.65 32.00 3.20 2.40 18.10
RS80-LMD-1 7.94 17.15 20.25 39.90 4.00 3.20 24.10
RS100-LMD-1 9.54 20.65 23.85 47.50 4.80 4.00 30.10
RS120-LMD-1 11.11 25.75 29.95 59.00 5.60 4.80 36.20
RS140-LMD-1 12.71 27.70 32.20 63.70 6.40 5.60 42.20
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
pt		 Min. Tensile Strength acc. to ANSI
kN		 Av. Tensile Strength acc. to Tsubaki
kN		 Approx. Mass
kg/m
RS40-LMD-1 - 15.2 19.1 0.70
RS50-LMD-1 - 24.0 31.4 1.11
RS60-LMD-1 - 34.2 44.1 1.72
RS80-LMD-1 - 61.2 78.5 2.77
RS100-LMD-1 - 95.4 118.0 4.30
RS120-LMD-1 - 137.1 167.0 6.40
RS140-LMD-1 - 185.9 216.0 8.10
  • Connecting links are clip type for sizes RS40-LMD to RS60-LMD, and cotter type for sizes RS80-LMD to RS140-LMD.
  • Drive and Conveyor series Lambda chain cannot be intercoupled or interchanged.
  • Due to increased roller link plate thickness, Drive Lambda connecting links are required.
  • Due to increased roller link plate thickness, the pins are longer. Check for machine interference.
  • When a single pitch offset link is used, please calculate a 35% reduction in fatigue strength.
  • The listed sizes are stock items, other chain sizes are available on request
  • Also available in Neptune™ specification.

Double Strand Details

bs-lambda2 ANSI Lambda Chain
Dimensions in mm
Tsubaki Chain No. Pitch
p		 Roller Diameter
d1		 Inner Width
b1
RS40-LMD-2 12.70 1/2" 7.95 7.55
RS50-LMD-2 15.875 5/8" 10.16 9.26
RS60-LMD-2 19.05 3/4" 11.91 12.28
RS80-LMD-2 25.40 1" 15.88 15.48
RS100-LMD-2 31.75 1 1/4" 19.05 18.70
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter
d2		 Length
L1		 Length
L2		 Length
L		 Thickness
T		 Thickness
t		 Height
H (max.)
RS40-LMD-2 3.97 16.50 18.10 - 2.00 1.50 12.00
RS50-LMD-2 5.09 20.20 22.00 - 2.40 2.00 15.00
RS60-LMD-2 5.96 26.05 28.05 - 3.20 2.40 18.10
RS80-LMD-2 7.94 32.70 35.90 - 4.00 3.20 24.10
RS100-LMD-2 9.54 39.50 42.50 - 4.80 4.00 30.10
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
pt		 Min. Tensile Strength acc. to ANSI
kN		 Av. Tensile Strength acc. to Tsubaki
kN		 Approx. Mass
kg/m
RS40-LMD-2 15.40 30.4 38.2 1.40
RS50-LMD-2 19.00 48.0 62.8 2.20
RS60-LMD-2 24.52 68.4 88.3 3.40
RS80-LMD-2 31.10 122.4 157.0 5.50
RS100-LMD-2 37.60 190.8 235.0 8.60
  • Connecting links are clip type for sizes RS40-LMD to RS60-LMD, and cotter type for sizes RS80-LMD to RS140-LMD.
  • Drive and Conveyor series Lambda chain cannot be intercoupled or interchanged.
  • Due to increased roller link plate thickness, Drive Lambda connecting links are required.
  • Due to increased roller link plate thickness, Lambda double strand chains require special sprockets.
  • Due to increased roller link plate thickness, the pins are longer. Check for machine interference.
  • Offset links for Lambda double strand chains are not available.
  • When a single pitch offset link is used, please calculate a 35% reduction in fatigue strength.
  • The listed sizes are stock items, other chain sizes are available on request
  • Also available in Neptune™ specification.