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Nickel Plated
BS NP Chain


 

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BS (Lambda) NP

ANSI (Lambda) NP

BS 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

np
Tsubaki BS NP Chain
Dimensions in 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
  • RF06B-NP chain has flat-shaped link plates.
  • Connecting links are clip type for sizes up to RS16B-NP-1, and cotter type for sizes RS16B-NP-1 to RS32B-NP-1.
  • Center sink riveting is applied to RS08B-NP-1 and to RS16B-NP-1 single-strand chain.
  • Double stake riveting is applied to all other sizes single-strand chain.
  • 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.

Double Strand Details

np2
Tsubaki BS NP Chain
Dimensions in 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
  • RF06B-NP chain has flat-shaped link plates.
  • Connecting links are clip type for sizes up to RS16B-NP-2, and cotter type for sizes RS16B-NP-2 to RS32B-NP-2.
  • Intermediate plate of multi strand RF06B-NP-2 and RS08B-NP-2 chain is a solid plate.
  • Double stake riveting is applied to all sizes multi-strand chain.
  • 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.

Triple Strand Details

np3
Tsubaki BS NP Chain
Dimensions in 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
  • RF06B-NP chain has flat-shaped link plates.
  • Connecting links are clip type for sizes up to RS12B-NP-3.
  • 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.