Surface treated drive chain

List of Models

※Click the name for more information.

Pitch
mm
No. of strands サイズ&仕様&列数 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

Surface treated drive chain APP Series

Tsubaki's pitting corrosion resistant APP Series features a special surface coating on the pins. This coating does not decrease pin strength while protecting the pin from pitting corrosion, which can lead to fatigue fracture. Its outstanding effects are b

*Pitting corrosion is a type of localized corrosion affecting a metallic surface. The corrosion progresses inward as pits.
When pitting corrosion forms on the pin's surface, those pits can lead to premature fatigue breakage and ultimately chain breaka