N.E.P. Chain is a Tsubaki BS chain that has undergone a special surface treatment process. The link plates, attachments, bushes and bearing 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. This chain is suitable for use in environments exposed to seawater, acid-rain and other adverse weather conditions. This chain does not contain any chemically hazardous substances such as Hexavalent Chromium, Lead, Cadmium and Mercury as regulated by RoHS√. It has a working temperature range of: -10°C to +150°C. Above +60°C a special high-temperature lubrication is required. Of course, BS Lambda N.E.P. chain is also available for this purpose.
Tsubaki BS Single Pitch N.E.P. Chain
| Tsubaki Chain No. | Pitch p |
Roller Diameter d1 |
Inner Width b1 |
|
|---|---|---|---|---|
| RF06B-NEP | 9.525 | 3/8" | 6.35 | 5.72 |
| RS08B-NEP | 12.70 | 1/2" | 8.51 | 7.75 |
| RS10B-NEP | 15.875 | 5/8" | 10.16 | 9.65 |
| RS12B-NEP | 19.05 | 3/4" | 12.07 | 11.68 |
| RS16B-NEP | 25.40 | 1" | 15.88 | 17.02 |
| RS20B-NEP | 31.75 | 1 1/4" | 19.05 | 19.56 |
| Tsubaki Chain No. | Pin | Link Plate | Approx. Mass kg/m |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Diameter d2 |
Length L1 |
Length L2 |
Length L3 |
Length L4 |
Length L |
Thickness T |
Thickness t |
Height H (max.) |
||
| RF06B-NEP | 3.27 | 6.10 | 7.70 | 10.90 | 16.30 | 14.20 | 1.30 | 1.00 | 8.20 | 0.39 |
| RS08B-NEP | 4.45 | 8.40 | 10.00 | 14.70 | 22.20 | 18.40 | 1.60 | 1.60 | 12.00 | 0.70 |
| RS10B-NEP | 5.08 | 9.55 | 11.25 | 17.80 | 26.15 | 21.10 | 1.50 | 1.50 | 14.70 | 0.95 |
| RS12B-NEP | 5.72 | 11.10 | 13.00 | 20.80 | 30.60 | 24.80 | 1.80 | 1.80 | 16.10 | 1.25 |
| RS16B-NEP | 8.28 | 17.75 | 19.95 | 33.20 | 49.35 | 38.90 | 4.00 | 3.20 | 21.00 | 2.70 |
| RS20B-NEP | 10.19 | 19.90 | 23.10 | 39.30 | 56.90 | 46.60 | 4.40 | 3.40 | 26.00 | 3.85 |
| Tsubaki Chain No. | Attachment Dimensions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | C1 | C2 | C3 | KW | N | NW | O | O1 | S | S1 | X | X1 | X2 | XS | XS1 | |
| RF06B-NEP | 9.50 | 9.50 | - | - | - | 8.50 | - | 3.50 | - | 6.50 | - | 14.10 | - | - | 14.30 | - |
| RS08B-NEP | 11.90 | 12.70 | 12.70 | 13.10 | 12.70 | 11.40 | 24.60 | 4.20 | 4.90 | 8.90 | 8.90 | 19.05 | 20.30 | 17.15 | 19.30 | 20.70 |
| RS10B-NEP | 15.90 | 15.90 | 15.90 | 16.60 | 15.90 | 12.70 | 30.00 | 5.00 | 5.00 | 10.20 | 10.20 | 22.25 | 22.85 | 20.60 | 22.90 | 23.60 |
| RS12B-NEP | 19.05 | 22.20 | 17.45 | 17.60 | 19.10 | 16.50 | 34.80 | 7.10 | 5.50 | 13.50 | 11.40 | 29.85 | 25.65 | 27.80 | 32.05 | 25.75 |
| RS16B-NEP | 23.80 | 23.90 | 28.60 | 26.00 | 25.40 | 24.30 | 46.00 | 6.70 | 8.10 | 15.20 | 15.90 | 37.35 | 39.25 | 34.40 | 34.10 | 36.70 |
| RS20B-NEP | 31.75 | 31.80 | - | - | - | 25.40 | - | 8.70 | - | 19.70 | - | 44.85 | - | - | 44.00 | - |
| Tsubaki Chain No. | Attachment Mass | ||||
|---|---|---|---|---|---|
| A SA kg/att. |
K SK kg/att. |
WA WSA kg/att. |
WK WSK kg/att. |
Ext. Pin kg/att. |
|
| RF06B-NEP | 0.002 | 0.004 | - | - | 0.001 |
| RS08B-NEP | 0.002 | 0.004 | 0.005 | 0.010 | 0.001 |
| RS10B-NEP | 0.003 | 0.006 | 0.006 | 0.012 | 0.002 |
| RS12B-NEP | 0.006 | 0.012 | 0.009 | 0.018 | 0.003 |
| RS16B-NEP | 0.014 | 0.028 | 0.030 | 0.060 | 0.008 |
| RS20B-NEP | 0.027 | 0.054 | - | - | 0.014 |
