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BS Lambda Neptune™ Chain


 

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ANSI Neptune™

ANSI Lambda Neptune™

BS Neptune™

BS Lambda Neptune™

BS Lambda Neptune™ Chain

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.

BS Lambda Neptune™ Chain is a Tsubaki BS Lambda chain that has undergone a special surface treatment. The link plates have a special two stage layer applied in order to provide the maximum protection from the operating or environmental conditions. (Spring clips are SUS301). Both BS Lambda Neptune™ rollers and pins have undergone a special coating designed to resist the corrosive conditions as well as the severe dynamic contact between roller and sprocket. This chain is suitable for use in applications that are subject to alkaline cleaning and environments exposed to seawater, acid-rain and other adverse weather conditions. This chain does not contain any chemically hazardous substances such as Hexavalent Chromium, Lead, Cadmium and Mercury as regulated by RoHS√. The kilowatt ratings are the same as those of the corresponding BS chain with a working temperature range: -10°C to +150°C. Above +60°C a special high-temperature lubrication is required.

√ RoHS = Restriction of Hazardous Substances

Single Strand Details

lambda-neptune
tsubaki-bs-lm-nep
Dimensions in mm
Tsubaki Chain No. Pitch (P) Roller Diameter Inner Width
mm Inch R W
RS08B-LM-NEP-1 12.70 ½" 8.51 7.75
RS10B-LM-NEP-1 15.875 ⅝" 10.16 9.65
RS12B-LM-NEP-1 19.05 ¾" 12.07 11.68
RS16B-LM-NEP-1 25.40 1" 15.88 17.02
RS20B-LM-NEP-1 31.75 1¼" 19.05 19.56
RS24B-LM-NEP-1 38.10 1½" 25.40 25.40
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter Length Offset Pin
Length		 Thickness Height
∅D L1 L2 L T1 T2 H
RS08B-LM-NEP-1 4.45 8.40 10.00 18.60 1.60 1.60 11.80
RS10B-LM-NEP-1 5.08 9.55 11.25 20.80 1.50 1.50 14.70
RS12B-LM-NEP-1 5.72 11.10 13.00 24.40 1.80 1.80 16.10
RS16B-LM-NEP-1 8.28 17.75 19.95 41.10 3.20 4.00 21.00
RS20B-LM-NEP-1 10.19 19.90 23.10 46.60 3.40 4.40 26.40
RS24B-LM-NEP-1 14.63 26.65 31.85 61.70 5.60 6.00 33.40
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
C		 Min. Tensile Strength
kN		 Approx. Mass
kg/m
RS08B-LM-NEP-1 - 17.80 0.70
RS10B-LM-NEP-1 - 22.20 0.95
RS12B-LM-NEP-1 - 28.90 1.25
RS16B-LM-NEP-1 - 60.00 2.70
RS20B-LM-NEP-1 - 95.00 3.85
RS24B-LM-NEP-1 - 160.0 7.45
  • Connecting links are clip type for sizes up to RS16B-LM-NEP, and cotter type for sizes RS20B-LM-NEP to RS24B-LM-NEP.
  • RF06B-LM-NEP chain has flat shaped link plates.
  • Centre sink riveting is applied for RS08B-LM-NEP-1 to RS16B-LM-NEP-1. Double stake riveting is applied to all other sizes including multi-strand chain.
  • When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.

Double Strand Details

lambda-neptune2
tsubaki-bs-lm-nep
Dimensions in mm
Tsubaki Chain No. Pitch (P) Roller Diameter Inner Width
mm Inch R W
RS08B-LM-NEP-2 12.70 ½" 8.51 7.75
RS10B-LM-NEP-2 15.875 ⅝" 10.16 9.65
RS12B-LM-NEP-2 19.05 ¾" 12.07 11.68
RS16B-LM-NEP-2 25.40 1" 15.88 17.02
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter Length Offset Pin
Length		 Thickness Height
∅D L1 L2 L T1 T2 H
RS08B-LM-NEP-2 4.45 15.30 16.90 34.50 1.60 1.60 11.80
RS10B-LM-NEP-2 5.08 17.85 19.55 39.40 1.50 1.50 14.70
RS12B-LM-NEP-2 5.72 20.85 22.75 45.90 1.80 1.80 16.10
RS16B-LM-NEP-2 8.28 33.55 35.75 75.20 3.20 4.00 21.00
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
C		 Min. Tensile Strength
kN		 Approx. Mass
kg/m
RS08B-LM-NEP-2 13.92 31.10 1.35
RS10B-LM-NEP-2 16.59 44.50 1.85
RS12B-LM-NEP-2 19.46 57.80 2.50
RS16B-LM-NEP-2 31.88 106.0 5.40
  • Connecting links are clip type for sizes up to RS16B-LM-NEP, and cotter type for sizes RS20B-LM-NEP to RS24B-LM-NEP.
  • RF06B-LM-NEP chain has flat shaped link plates.
  • Intermediate plate of RF06B-LM-NEP-2 and RS08B-LM-NEP-2 is a solid plate.
  • Centre sink riveting is applied for RS08B-LM-NEP-1 to RS16B-LM-NEP-1. Double stake riveting is applied to all other sizes including multi-strand chain.
  • When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.

Download the Neptune Catalog in PDF.