Tsubaki Products

Lambda Chain cold resistant series

Lube-free roller chain that can be used even in low temperature environments
Lube-free roller chain that can be used up to -30℃ atmosphere.

Features

・Can be used in lower temperature range than standard Lambda chain (Non-condensing condition )

Operating temperature range is -30℃ to 150℃. Using materials suitable for low temperature environments, it achieves the same transmission capacity as standard Lambda chain even in F1 and C1 class freezing and refrigerating environments.
・Applicable to food machinery by using NSF H1 standard compliant products

Thanks to eco-friendly NSF H1 standard compliant product, it can be used where re-lubrication of chain is difficult or there is a wear problem.
・Basic construction

※The thickness of the inner plate is increased by one size to ensure strength such as tensile strength.
Thus, pins are longer than with the RS Roller Chain, so interference with equipment should be checked.

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.

If standard steel sprockets are used with Lambda chain cold resistant series at temperatures below -10°C, strength reduction may occur due to low-temperature brittleness.

Please consult us for details.

Click here for the chain/sprocket compatibility table.

Chain/sprocket compatibility table

Catalogs ・Instruction Manuals

List of Models

※Click the name for more information.

※The table below includes related products. The model numbers of the products introduced on this page are colored.

Pitch mm	No. of strands	Size & Specification & No. of strands							Roller dia. mm	Inner width of inner link mm
Pitch mm	No. of strands	Lambda chain	Surface-treated Lambda Chain NP Series	Long-life Lambda Chain	Lambda Chain cold resistant series	Lambda Chain KF Series	Heavy-duty Lambda Chain	Heavy-duty Lambda Chain NP Series	Roller dia. mm	Inner width of inner link mm
12.70	1	RS40-LMD-1	RS40-LMDNP-1	RS40-LMDX-1	RS40-LMDKT-1	RS40-LMDKF-1	---	---	7.92	7.55
	2 RS Double Strand Compatible Series	RS40-LMDS-2	---	---	---	---	---	---
	2	---	---	---	---	---	RS40-LMDH-2	RS40-LMDHNP-2
15.875	1	RS50-LMD-1	RS50-LMDNP-1	RS50-LMDX-1	RS50-LMDKT-1	RS50-LMDKF-1	---	---	10.16	9.26
	2 RS Double Strand Compatible Series	RS50-LMDS-2	---	---	---	---	---	---
	2	---	---	---	---	---	RS50-LMDH-2	RS50-LMDHNP-2
19.05	1	RS60-LMD-1	RS60-LMDNP-1	RS60-LMDX-1	RS60-LMDKT-1	RS60-LMDKF-1	---	---	11.91	12.28
	2 RS Double Strand Compatible Series	RS60-LMDS-2	---	---	---	---	---	---
	2	---	---	---	---	---	RS60-LMDH-2	RS60-LMDHNP-2
25.40	1	RS80-LMD-1	RS80-LMDNP-1	RS80-LMDX-1	RS80-LMDKT-1	RS80-LMDKF-1	---	---	15.88	15.48
	2 RS Double Strand Compatible Series	RS80-LMDS-2	---	---	---	---	---	---
	2	---	---	---	---	---	RS80-LMDH-2	RS80-LMDHNP-2
31.75	1	RS100-LMD-1	RS100-LMDNP-1	RS100-LMDX-1	RS100-LMDKT-1	---	---	---	19.05	18.70
	2 RS Double Strand Compatible Series	RS100-LMDS-2	---	---	---	---	---	---
	2	---	---	---	---	---	RS100-LMDH-2	RS100-LMDHNP-2
38.10	1	RS120-LMD-1	RS120-LMDNP-1	RS120-LMDX-1	---	---	---	---	22.23	24.75
38.10	2 RS Double Strand Compatible Series	RS120-LMDS-2	---	---	---	---	---	---	22.23	24.75
44.45	1	RS140-LMD-1	RS140-LMDNP-1	---	---	---	---	---	25.40	24.75
44.45	2 RS Double Strand Compatible Series	RS140-LMDS-2	---	---	---	---	---	---	25.40	24.75
50.80	1	RS160-LMD-1	---	---	---	---	---	---	28.58	31.2
50.80	2 RS Double Strand Compatible Series	RS160-LMDS-2	---	---	---	---	---	---	28.58	31.2

Point of cautions when considering and adopting Lambda chains

1. Preventing contamination Lambda Chains have special nickel-plated pins and plates with black oxide treatment. Surface-treated Lambda Chains have different surface treatments for each series. Do not use Lambda Chain if the chain will come in direct contact with food, or where coating flakes or wear dust may contaminate food.
In non-food applications, take measures to prevent entry of foreign matter, for example, installing an appropriate cover when used in environments where coating flakes or wear dust may present a problem.
Though nickel is not subject to the Japan Food Sanitation Act or the Industrial Safety and Health Act, use the chain with caution.
2. Lubricating oil used on products Depending on usage conditions, the lubricating oil contained in impregnated bushings may spatter.
Due to manufacturing constraints, Lambda Chain uses certain oils that are not compliant with NSF H1 requirements.
If a bushing runs out of impregnating oil, it should be quickly re-oiled, leading to a longer wear life.
3. Operating environment If debris or dust is allowed to enter between chain parts, wear elongation may result and the chain may reach the end of its service life prematurely.
Avoid using chains in a chemical, solvent, or degreasing medium, or in water or under vacuum in a way that may cause the lubricating oil impregnating the bushings to become depleted.
Lambda Chain is not coated with anti-rust oil. Keep away from hot or humid places, and avoid dusty locations.
4. Double-strand chain Double-strand Lambda Chain and Heavy Duty Lambda Chain (including Surface-treated Series and KF Series) have different transverse pitches compared to RS Roller Chain.
Use dedicated sprockets instead of RS sprockets.
RS Double-strand Compatible Lambda Chain has the same transverse pitch as RS Roller Chain. Double-strand RS sprockets may be used.
Double-strand chains cannot be used together with LMD-2 and LMDS-2 chains, including their connecting components such as connecting links. The entire chain should be replaced and compatible sprockets selected.
5. Checking for interference on the equipment side The length of pins for lube-free chains varies depending on the thickness of the outer and inner plates and the presence or absence of a felt seal.
Since the pins extend beyond the RS roller chain itself, check for interference with equipment at the time of chain replacement.