Surface treated drive chain  NEP Series NEPTUNE

Product photo
neptune_logo
  • RS Roller Chain with a special surface treatment and top coat
  • They have the strength of RS Roller Chain and offer superb saltwater, weather, and chemical resistance.
  • With no harmful chromium. RoHS compliant

Features

  • ・Superb chemical resistance

    Combines Tsubaki's uniquely developed special coating and special resin coating for superb corrosion (rust) and chemical resistance.

  • ・High corrosion resistance

    Neptune Chain didn't rust after 1,000 hours in salt spray tests (JIS-Z-2371).

  • ・Less environmental load

    Uses no hexavalent chromium in its corrosion resistant surface coating and contains no harmful lead, cadmium, mercury, or arsenic.
    NEP Series chain is an eco-friendly chain that is RoHS compliant.

  • ・Same strength as RS Roller Chain

    Has the same tensile strength and allowable load as standard steel RS Roller Chain, with no reduction in strength.

Notes

  • ・Do not use if there is a risk of the chain directly contacting food or flakes and wear debris mixing in with food.
  • ・Can be used outdoors or in an atmosphere exposed to seawater.
  • ・When using in situations where flakes and wear debris will pose a problem, install an appropriate cover or contact a Tsubaki representative about chain selection.
  • ・Contact a Tsubaki representative if using in a high-temperature steam environment.
  • ・Avoid using in conjunction with stainless steel sprockets at all possible costs.
  • ・Operating temperature :-10~60℃(Can be used to a maximum of 150ºC with the right lubrication for that temperature. )

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.

Dedicated sprockets are required for surface treated Drive chain NEP Series.

Please consult us for details.

Galvanic corrosion may occur when this chain is used with stainless steel sprockets, promoting premature roller wear.

Contact us for chemical resistance.

Click here for the chain/sprocket compatibility table.

Catalogs ・Instruction Manuals

List of Models

※Click the name for more information.

Pitch
mm
No. of strands Size & Specification & No. of strands Roller dia.
(Bush dia.)
mm
Inner width
of inner link
mm
NP Series NEP Series
6.35 1 RS25-NP-1 --- 3.30 3.18
9.525 1 RS35-NP-1 RS35-NEP-1 5.08 4.78
12.70 1 RS40-NP-1 RS40-NEP-1 7.92 7.95
2 --- RS40-NEP-2
15.875 1 RS50-NP-1 RS50-NEP-1 10.16 9.53
2 --- RS50-NEP-2
19.05 1 RS60-NP-1 RS60-NEP-1 11.91 12.70
2 --- RS60-NEP-2
25.40 1 RS80-NP-1 RS80-NEP-1 15.88 15.88
2 --- RS80-NEP-2
31.75 1 RS100-NP-1 RS100-NEP-1 19.05 19.05
2 --- RS100-NEP-2
38.10 1 RS120-NP-1 RS120-NEP-1 22.23 25.40
44.45 1 --- RS140-NEP-1 25.40 25.40
50.80 1 --- RS160-NEP-1 28.58 31.75