RS roller chain BS/DIN standard 　Major Specifications

RS20B-3


[Click to enlarge ]
PDF Outline Drawing

Contact us for details.

DXF drawings / 3D CAD data

To CADENAS WEB2CAD website.

※ The CAD data contained herein is made available to you via the CAD drawing library; PARTcommunity is provided by CADENAS WEB2CAD Co.
※ Please direct your inquiries regarding the CAD data service or PARTcommunity to:
　CADENAS WEB2CAD Co. TEL: +81 (3) 5961-5031 FAX: +81 (3) 5961-5032

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-3 20B 3 295{30100} 250{25500} 46.0{4690} 11.45 96

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


Principal dimensions 　mm


Pitch
P		 Roller dia.
R		 Inner link inner width
W		 Plate Pin Transverse pitch
C
mm
T1 T2 H h D L1 L2 L
31.75 19.05 19.56 3.4 4.4 26.0 26.0 10.19 56.5 59.7 121.036.45

Notes
　1.The outer plate thickness values are for single-strand chain. For multi-strand chain, the values may differ according to the horizontal pitch dimensions.
　2.Connecting links are cotter pin type.


Applicable connecting link


Type Connecting link Offset link 2-pitch
offset link
Model No. RS20B-3-MWJLRS20B-3-OLRS20B-3-2POL
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　2.5 multiplied multi-strand coefficient


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 1.55 3.55 6.63 12.4 17.8 23.1 33.3 43.0 52.5 62.0 55.3 45.3 38.0 32.3 28.0 24.6 21.8 19.6 16.0 13.4 11.5 9.93 8.70 7.73
10 1.75 3.98 7.43 13.9 20.0 25.8 37.3 48.3 59.0 69.5 64.8 53.0 44.5 38.0 32.8 28.8 25.5 22.9 18.7 15.7 13.4 11.6 10.2 9.05
11 1.93 4.40 8.23 15.4 22.1 28.8 41.3 53.5 65.3 77.0 74.8 61.0 51.3 43.8 38.0 33.3 29.5 26.5 21.6 18.1 15.5 13.4 11.8 10.4
12 2.13 4.85 9.03 16.9 24.3 31.5 45.3 58.8 71.8 84.5 85.0 69.8 58.3 49.8 43.3 38.0 33.5 30.0 24.6 20.6 17.6 15.3 13.4 4.40
13 2.33 5.28 9.85 18.4 26.5 34.3 49.5 64.0 78.3 92.3 96.0 78.5 65.8 56.3 48.8 42.8 38.0 34.0 27.8 23.3 19.9 17.2 15.1
14 2.50 5.73 10.7 19.9 28.8 37.3 53.5 69.3 84.8 100 107 87.8 73.5 62.8 54.5 47.8 42.3 38.0 31.0 26.0 22.2 19.3 16.9
15 2.70 6.15 11.5 21.5 31.0 40.0 57.8 74.8 91.3 107 119 97.3 81.5 69.8 60.3 53.0 47.0 42.0 34.5 28.8 24.6 21.4 18.7
16 2.90 6.60 12.3 23.0 33.3 43.0 61.8 80.0 98.0 115 131 107 89.8 76.8 66.5 58.3 51.8 46.3 38.0 31.8 27.0 23.5 20.6
17 3.10 7.05 13.2 24.6 35.5 45.8 66.0 85.5 104 123 141 117 98.5 84.0 72.8 64.0 56.8 50.8 41.5 34.8 29.8 25.8 22.6
18 3.30 7.50 14.0 26.3 37.8 48.8 70.3 91.0 111 131 150 128 107 91.5 79.3 69.8 61.8 55.3 45.3 38.0 32.3 28.0 4.53
19 3.48 7.95 14.9 27.8 40.0 51.8 74.5 96.5 118 139 159 138 116 99.3 86.0 75.5 67.0 60.0 49.0 41.0 35.0 30.5
20 3.68 8.40 15.7 29.3 42.3 54.8 78.8 102 124 146 168 149 125 107 93.0 81.5 72.3 64.8 53.0 44.5 38.0 32.8
21 3.88 8.85 16.6 30.8 44.5 57.5 83.0 107 131 154 177 161 135 115 100 87.8 77.8 69.8 57.0 47.8 40.8 35.3
22 4.08 9.33 17.4 32.5 46.8 60.5 87.3 113 138 162 187 172 144 123 107 94.0 83.5 74.8 61.0 51.3 43.8 38.0
23 4.28 9.78 18.3 34.0 49.0 63.5 91.5 118 145 170 196 184 154 132 114 100 89.3 79.8 65.3 54.8 46.8 38.8
24 4.50 10.2 19.1 35.8 51.3 66.5 95.8 124 151 178 205 197 165 141 122 107 95.0 85.0 69.8 58.3 49.8 16.2
25 4.70 10.7 20.0 37.3 53.8 69.5 100 129 158 186 214 209 175 149 129 114 101 90.5 74.0 62.0 53.0
26 4.90 11.2 20.8 38.8 56.0 72.5 104 135 165 195 224 222 186 159 137 121 107 96.0 78.5 65.8 56.3
28 5.30 12.1 22.6 42.0 60.8 78.5 113 146 179 211 242 248 208 177 154 135 119 107 87.8 73.5 62.8
30 5.70 13.0 24.3 45.3 65.3 84.8 122 158 193 227 262 275 230 197 170 149 133 119 97.3 81.5 47.5
32 6.13 14.0 26.0 48.8 70.0 90.8 130 169 207 244 280 302 255 217 188 165 146 131 107 89.8
35 6.75 15.4 28.8 53.5 77.3 100 144 186 228 267 307 347 290 248 215 188 167 149 122 102
40 7.80 17.8 33.3 62.0 89.3 115 166 215 262 310 357 402 355 302 262 230 204 183 149
45 8.85 20.2 37.8 70.3 101 131 189 244 300 352 405 457 425 362 312 275 244 218 106

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