BS NP Chain

Tsubaki NP Chain

BS NP Chain is a Tsubaki BS chain that has been plated with Nickel. NP Chain has a light corrosion resistance and an attractive appearance. NP Chain is suitable for outdoor conditions exposed to water. There is a 15% reduction in Maximum Allowable Load compared to the corresponding BS chain, so please take this into account when making your chain selection. It has a working temperature range of: -10°C to +60°C. Of course, BS Lambda NP chain is also available.

Single Strand Details

Tsubaki BS NP Chain Tsubaki BS NP Chain
Dimensions-mm
Tsubaki Chain No. Pitch
p
Roller Diameter
d1
Inner Width
b1
RF06B-NP-1 9.525 3/8" 6.35 5.72
RS08B-NP-1 12.70 1/2" 8.51 7.75
RS10B-NP-1 15.875 5/8" 10.16 9.65
RS12B-NP-1 19.05 3/4" 12.07 11.68
RS16B-NP-1 25.40 1" 15.88 17.02
RS20B-NP-1 31.75 1 1/4" 19.05 19.56
RS24B-NP-1 38.10 1 1/2" 25.40 25.40
RS28B-NP-1 44.45 1 3/4" 27.94 30.99
RS32B-NP-1 50.80 2" 29.21 30.99
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter
d2
Length
L1
Length
L2
Length
L
Thickness
T
Thickness
t
Height
H (max.)
RF06B-NP-1 3.28 6.35 7.65 14.20 1.30 1.00 8.20
RS08B-NP-1 4.45 8.40 10.00 18.40 1.60 1.60 11.80
RS10B-NP-1 5.08 9.55 11.25 21.10 1.50 1.50 14.70
RS12B-NP-1 5.72 11.20 13.10 24.80 1.80 1.80 16.10
RS16B-NP-1 8.28 17.75 19.95 38.90 4.00 3.20 21.00
RS20B-NP-1 10.19 19.90 23.10 46.95 4.40 3.40 26.00
RS24B-NP-1 14.63 26.65 31.85 62.00 6.00 5.60 33.40
RS28B-NP-1 15.90 32.45 37.45 74.50 7.50 6.30 36.40
RS32B-NP-1 17.81 32.10 37.70 73.50 7.00 6.30 42.20
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
pt
Min. Tensile Strength acc. to ISO 606
kN
Min. Tensile Strength acc. to Tsubaki
kN
Av. Tensile Strength acc. to Tsubaki
kN
Approx. Mass
kg/m
RF06B-NP-1 - 8.9 9.0 9.9 0.39
RS08B-NP-1 - 17.8 19.0 20.9 0.70
RS10B-NP-1 - 22.2 23.0 25.3 0.95
RS12B-NP-1 - 28.9 31.0 34.1 1.25
RS16B-NP-1 - 60.0 70.0 77.0 2.70
RS20B-NP-1 - 95.0 98.1 108.0 3.85
RS24B-NP-1 - 160.0 167.0 184.0 7.45
RS28B-NP-1 - 200.0 200.0 220.0 9.45
RS32B-NP-1 - 250.0 255.0 281.0 10.25

Double Strand Details

Tsubaki BS NP Chain Tsubaki BS NP Chain
Dimensions-mm
Tsubaki Chain No. Pitch
p
Roller Diameter
d1
Inner Width
b1
RF06B-NP-2 9.525 3/8" 6.35 5.72
RS08B-NP-2 12.70 1/2" 8.51 7.75
RS10B-NP-2 15.875 5/8" 10.16 9.65
RS12B-NP-2 19.05 3/4" 12.07 11.68
RS16B-NP-2 25.40 1" 15.88 17.02
RS20B-NP-2 31.75 1 1/4" 19.05 19.56
RS24B-NP-2 38.10 1 1/2" 25.40 25.40
RS28B-NP-2 44.45 1 3/4" 27.94 30.99
RS32B-NP-2 50.80 2" 29.21 30.99
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter
d2
Length
L1
Length
L2
Length
L
Thickness
T
Thickness
t
Height
H (max.)
RF06B-NP-2 3.28 11.43 12.57 - 1.30 1.00 8.20
RS08B-NP-2 4.45 15.30 16.90 33.60 1.60 1.60 11.80
RS10B-NP-2 5.08 17.85 19.55 39.40 1.50 1.50 14.70
RS12B-NP-2 5.72 20.85 22.75 46.30 1.80 1.80 16.10
RS16B-NP-2 8.28 33.55 35.75 73.80 4.00 3.20 21.00
RS20B-NP-2 10.19 38.25 41.45 84.85 4.40 3.40 26.00
RS24B-NP-2 14.63 50.80 56.00 112.95 6.00 5.60 33.40
RS28B-NP-2 15.90 62.15 67.15 136.85 7.50 6.30 36.40
RS32B-NP-2 17.81 61.25 66.85 135.25 7.00 6.30 42.20
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
pt
Min. Tensile Strength acc. to ISO 606
kN
Min. Tensile Strength acc. to Tsubaki
kN
Av. Tensile Strength acc. to Tsubaki
kN
Approx. Mass
kg/m
RF06B-NP-2 10.24 16.9 17.0 18.7 0.75
RS08B-NP-2 13.92 31.1 32.0 35.2 1.35
RS10B-NP-2 16.59 44.5 44.5 49.0 1.85
RS12B-NP-2 19.46 57.8 61.0 67.1 2.50
RS16B-NP-2 31.88 106.0 128.0 141.0 5.40
RS20B-NP-2 36.45 170.0 197.0 217.0 7.65
RS24B-NP-2 48.36 280.0 335.0 370.0 14.65
RS28B-NP-2 59.56 360.0 374.0 411.0 18.80
RS32B-NP-2 58.55 450.0 485.0 534.0 21.10

Triple Strand Details

Tsubaki BS NP Chain Tsubaki BS NP Chain
Dimensions-mm
Tsubaki Chain No. Pitch
p
Roller Diameter
d1
Inner Width
b1
RF06B-NP-3 9.525 3/8" 6.35 5.72
RS08B-NP-3 12.70 1/2" 8.51 7.75
RS10B-NP-3 15.875 5/8" 10.16 9.65
RS12B-NP-3 19.05 3/4" 12.07 11.68
Dimensions in mm
Tsubaki Chain No. Pin Link Plate
Diameter
d2
Length
L1
Length
L2
Length
L
Thickness
T
Thickness
t
Height
H (max.)
RF06B-NP-3 3.28 16.90 17.50 - 1.30 1.00 8.20
RS08B-NP-3 4.45 22.25 23.85 47.60 1.60 1.60 11.80
RS10B-NP-3 5.08 26.15 27.85 56.10 1.50 1.50 14.70
RS12B-NP-3 5.72 30.60 32.50 66.00 1.80 1.80 16.10
Dimensions in mm
Tsubaki Chain No. Transverse Pitch
pt
Min. Tensile Strength acc. to ISO 606
kN
Min. Tensile Strength acc. to Tsubaki
kN
Av. Tensile Strength acc. to Tsubaki
kN
Approx. Mass
kg/m
RF06B-NP-3 10.24 24.9 24.9 27.4 1.11
RS08B-NP-3 13.92 44.5 47.5 52.3 2.00
RS10B-NP-3 16.59 66.6 66.8 73.5 2.80
RS12B-NP-3 19.46 86.7 92.0 101.0 3.80