BS Single Pitch Neptune™ Chain

Tsubaki BS Single Pitch N.E.P. Chain

Neptune™ 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 two stage layer applied in order to provide the maximum protection from the operating or environmental conditions. (Spring clips are SUS301). Neptune™ 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 applications that are subject to akaline cleaning and 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 Neptune™ chain is also available for this purpose.

Single Strand Details

Tsubaki BS Single Pitch N.E.P. Chain Tsubaki BS Single Pitch Neptune™ Chain
Dimensions in mm
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
Dimensions in mm
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
Dimensions in mm
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 -
Dimensions in mm
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