Tsubaki Corrosion Resistant Drive Chains
Stainless Steel Roller Chain
Provides superior corrosion resistance to RS Roller Chain. While it has less corrosion resistance than stainless steel drive chain, it maintains almost the same strength as RS Roller Chain.
Features
While stainless steel roller chain has excellent corrosion resistance, its strength (maximum allowable load) is only 1/8 that of steel chain. For applications requiring corrosion resistance and the same strength of steel chain, Tsubaki recommends Surface Treated Roller Chains. (However, Surface Treated Roller Chains have less corrosion resistance than stainless steel chain.)
Applications, Features, and Use
| Features/Series | Steel | NP Series | Neptune Chain |
|---|---|---|---|
| Color | Dark gray | Light silver | Light silver (rollers are dark gray) |
| Strength comparison | 100 | 85 | 100 |
| Corrosion resistance | Low  High |
||
| Pros | All-purpose, cheap | Attractive appearance, light corrosion resistance | Provides non-chromate corrosion resistance for eco-friendly operation (RoHS compliant) |
| Cons | Not suitable where corrosion resistance is needed | Slightly less strength than with steel chain | Limited line-up |
| Applications | General drive and hanging applications | Office equipment, specialized equipment, etc. where appearance is the focus | Outdoor usage, coastal applications, etc. |
*Rough strength comparison, with steel chain as 100.
Product Lineup
NP Series
RS Roller Chain plated with nickel for an attractive appearance and light corrosion resistance. Has 15% less allowable load than RS Roller Chain.
Neptune® Chain (NEP Series) Launched on June 2016
RS Roller Chain with a special surface treatment and top coat. Superb corrosion and chemical resistance. RoHS compliant
APP Series
Uses a special surface coating on the pin for protection from pitting corrosion outdoors or in coastal areas.
