RS roller chain BS/DIN standard 　Major Specifications

RS20B-1


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PDF Outline Drawing

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Catalogs ・Instruction Manuals

Major Specifications

Size &
No. of
strands 		JIS no. No. of
strands 		Min. tensile strength
kN {kgf}		 ISO606 tensile strength
kN {kgf}		 Max. allowable load
kN {kgf}		 Estimated Mass
kg/m		 No. of links
per unit
RS20B-1 20B 1 98.1{10000} 95.0{9690} 18.4{1880} 3.85 96

Notes
　1.The maximum allowable tension when using a 1-pitch/2-pitch offset link (OL, 2POL) is 60% of the above.
　2.Stocked unit


Principal dimensions 　mm

Pitch
P		 Roller dia.
R		 Inner link inner width
W		 Plate Pin
T1 T2 H h D L1 L2 L
31.75 19.05 19.56 3.4 4.4 26.0 26.0 10.19 19.9 23.1 46.6

Notes
　1.Connecting links are cotter pin type.


Applicable connecting link

Type Connecting link Offset link 2-pitch
offset link
Model No. RS20B-1-MWJLRS20B-1-OLRS20B-1-2POL
Price Contact us for details. Contact us for details. Contact us for details.
Delivery Contact us for details. Contact us for details. Contact us for details.

Transmission Capacity Table 　kW

Small
sprocket
no. of teeth
Small sprocket RPM 　r/min
10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1600 1800 2000 2200 2400 2600
Lubrication method AI Lubrication method AII Lubrication method B Lubrication method C
9 0.62 1.42 2.65 4.94 7.12 9.23 13.3 17.2 21.0 24.8 22.1 18.1 15.2 12.9 11.2 9.85 8.73 7.82 6.40 5.36 4.58 3.97 3.48 3.09
10 0.70 1.59 2.97 5.54 7.98 10.3 14.9 19.3 23.6 27.8 25.9 21.2 17.8 15.2 13.1 11.5 10.2 9.15 7.49 6.28 5.36 4.65 4.08 3.62
11 0.77 1.76 3.29 6.14 8.84 11.5 16.5 21.4 26.1 30.8 29.9 24.4 20.5 17.5 15.2 13.3 11.8 10.6 8.64 7.24 6.18 5.36 4.70 4.17
12 0.85 1.94 3.61 6.75 9.72 12.6 18.1 23.5 28.7 33.8 34.0 27.9 23.3 19.9 17.3 15.2 13.4 12.0 9.85 8.25 7.05 6.11 5.36 1.76
13 0.93 2.11 3.94 7.35 10.6 13.7 19.8 25.6 31.3 36.9 38.4 31.4 26.3 22.5 19.5 17.1 15.2 13.6 11.1 9.31 7.95 6.89 6.04
14 1.00 2.29 4.27 7.97 11.5 14.9 21.4 27.7 33.9 40.0 42.9 35.1 29.4 25.1 21.8 19.1 16.9 15.2 12.4 10.4 8.88 7.70 6.76
15 1.08 2.46 4.60 8.58 12.4 16.0 23.1 29.9 36.5 43.1 47.6 38.9 32.6 27.9 24.1 21.2 18.8 16.8 13.8 11.5 9.85 8.54 7.49
16 1.16 2.64 4.93 9.20 13.3 17.2 24.7 32.0 39.2 46.2 52.4 42.9 35.9 30.7 26.6 23.3 20.7 18.5 15.2 12.7 10.8 9.40 8.25
17 1.24 2.82 5.27 9.83 14.2 18.3 26.4 34.2 41.8 49.3 56.6 47.0 39.4 33.6 29.1 25.6 22.7 20.3 16.6 13.9 11.9 10.3 9.04
18 1.32 3.00 5.60 10.5 15.1 19.5 28.1 36.4 44.5 52.4 60.2 51.2 42.9 36.6 31.7 27.9 24.7 22.1 18.1 15.2 12.9 11.2 1.81
19 1.39 3.18 5.94 11.1 16.0 20.7 29.8 38.6 47.2 55.6 63.8 55.5 46.5 39.7 34.4 30.2 26.8 24.0 19.6 16.4 14.0 12.2
20 1.47 3.36 6.28 11.7 16.9 21.9 31.5 40.8 49.8 58.7 67.5 59.9 50.2 42.9 37.2 32.6 28.9 25.9 21.2 17.8 15.2 13.1
21 1.55 3.54 6.62 12.3 17.8 23.0 33.2 43.0 52.5 61.9 71.1 64.5 54.0 46.1 40.0 35.1 31.1 27.9 22.8 19.1 16.3 14.1
22 1.63 3.73 6.96 13.0 18.7 24.2 34.9 45.2 55.3 65.1 74.8 69.1 57.9 49.5 42.9 37.6 33.4 29.9 24.4 20.5 17.5 15.2
23 1.71 3.91 7.30 13.6 19.6 25.4 36.6 47.4 58.0 68.3 78.5 73.9 61.9 52.9 45.8 40.2 35.7 31.9 26.1 21.9 18.7 15.5
24 1.80 4.09 7.64 14.3 20.5 26.6 38.3 49.7 60.7 71.5 82.2 78.8 66.0 56.4 48.9 42.9 38.0 34.0 27.9 23.3 19.9 6.46
25 1.88 4.28 7.99 14.9 21.5 27.8 40.1 51.9 63.4 74.7 85.9 83.8 70.2 59.9 51.9 45.6 40.4 36.2 29.6 24.8 21.2
26 1.96 4.46 8.33 15.5 22.4 29.0 41.8 54.1 66.2 78.0 89.6 88.8 74.4 63.6 55.1 48.4 42.9 38.4 31.4 26.3 22.5
28 2.12 4.84 9.03 16.8 24.3 31.4 45.3 58.6 71.7 84.5 97.0 99.3 83.2 71.0 61.6 54.0 47.9 42.9 35.1 29.4 25.1
30 2.28 5.21 9.72 18.1 26.1 33.9 48.8 63.2 77.2 91.0 105 110 92.3 78.8 68.3 59.9 53.2 47.6 38.9 32.6 19.0
32 2.45 5.59 10.4 19.5 28.0 36.3 52.3 67.7 82.8 97.6 112 121 102 86.8 75.2 66.0 58.6 52.4 42.9 35.9
35 2.70 6.15 11.5 21.4 30.9 40.0 57.6 74.6 91.2 107 123 139 116 99.3 86.1 75.5 67.0 59.9 49.1 41.1
40 3.12 7.11 13.3 24.8 35.7 46.2 66.5 86.2 105 124 143 161 142 121 105 92.3 81.8 73.2 59.9
45 3.54 8.07 15.1 28.1 40.5 52.5 75.6 97.9 120 141 162 183 170 145 125 110 97.6 87.4 42.7

Notes
　1.kW ratings when using a 1-pitch offset link (OL) are 80% of the above.
　2.Contact us if you use at the kW ratings colored in gray.

Lubrication method AI AII B C

More details

Method Manual lubrication Drip lubrication Oil bath or slinger disc Forced lubrication