ANSI N.E.P. Chain
ANSI N.E.P. Chain is a Tsubaki ANSI chain that has undergone a special surface treatment. The link plates, bushes and pins have a special three stage layer applied in order to provide the maximum protection from the operating or environmental conditions.
(Spring clips are SUS301). N.E.P. Rollers have a special coating designed to resist the corrosive conditions as well as the severe dynamic contact between roller and sprocket.
ANSI N.E.P. Chain
Dimensions-mm
| Tsubaki Chain No. |
Pitch
p |
Roller Diameter
d1 |
Inner Width
b1 |
| RS35-NEP-1 |
9.525 |
3/8" |
5.08 |
4.78 |
| RS40-NEP-1 |
12.70 |
1/2" |
7.92 |
7.95 |
| RS50-NEP-1 |
15.875 |
5/8" |
10.16 |
9.53 |
| RS60-NEP-1 |
19.05 |
3/4" |
11.91 |
12.70 |
| RS80-NEP-1 |
25.40 |
1" |
15.88 |
15.88 |
Dimensions in mm
| Tsubaki Chain No. |
Pin |
Link Plate |
Diameter
d2 |
Length
L1 |
Length
L2 |
Length
L |
Thickness
T |
Height
H (max.) |
| RS35-NEP-1 |
3.59 |
5.85 |
6.85 |
13.50 |
1.25 |
9.00 |
| RS40-NEP-1 |
3.97 |
8.25 |
9.95 |
18.00 |
1.50 |
12.00 |
| RS50-NEP-1 |
5.09 |
10.30 |
12.00 |
22.50 |
2.00 |
15.00 |
| RS60-NEP-1 |
5.96 |
12.85 |
14.75 |
28.20 |
2.40 |
18.10 |
| RS80-NEP-1 |
7.94 |
16.25 |
19.25 |
38.20 |
3.20 |
24.10 |
Dimensions in mm
| Tsubaki Chain No. |
Min. Tensile Trength acc. to ANSI
kN |
Min. Tensile Strength acc. to Tsubaki
kN |
Av. Tensile Strength acc. to Tsubaki
kN |
Approx. Mass
kg/m |
| RS35-NEP-1 |
8.7 |
9.8 |
11.3 |
0.33 |
| RS40-NEP-1 |
15.2 |
17.7 |
19.1 |
0.64 |
| RS50-NEP-1 |
24.0 |
28.4 |
31.4 |
1.04 |
| RS60-NEP-1 |
34.2 |
40.2 |
44.1 |
1.53 |
| RS80-NEP-1 |
61.2 |
71.6 |
78.5 |
2.66 |
- Connecting links are clip type for sizes RS35-NEP to RS60-NEP, and cotter type for size RS80-NEP.
- When a single pitch offset link is used, please calculate a 35% reduction of the fatigue strength.
- For details on corrosion resistance selection, please consult our Corrosion Resistance Guide.
- The listed sizes are stock items, other chain sizes are available on request.
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To download any of the N.E.P. catalogues in PDF, click here