Sprocket type 20B | Sprockets | Standard Parts | Manufactures
Sprocket
Type 20B
Pitch
Roller Diameter
Tooth Width (Single)
Tooth Width (Duplex)
Tooth Width (Triplex)
Transverse Pitch of Strands
Tooth Side Relief
Tooth Side Relief high
Length through (Single)
Length through (Duplex)
Length through (Triplex)
P
Dr
B1
B2
B3
Pt
ch
h
L1
L2
L3
31.75 mm
19.05 mm
18.6 mm
18.2 mm
18.2 mm
36.45 mm
4.1 mm
15.9 mm
=d+B1
=d+pt+B2
=d+(2xpt)+B3
0~50
+0.1/-0.1
50~150
150~250
250~350
350~450
450~
+0.2/-0.2
+0.2/-0.3
+0.3/-0.4
+0.3/-0.4
+0.3/-0.6
Tolerance
Dk
Other tolerances according to ISO 2768-1 m
Z
d
Df
CD
Dk
Dg
Db/L
102.7
112.7
122.7
132.7
142.7
152.7
162.7
172.8
182.8
192.9
203.0
213.0
223.1
233.2
243.2
253.3
263.4
273.5
283.6
293.7
303.7
313.8
323.9
334.0
344.1
354.2
364.3
374.4
384.5
394.6
404.7
414.8
424.9
435.0
445.1
455.2
465.3
475.4
485.5
495.6
505.6
515.7
525.8
535.9
546.1
556.2
566.3
576.4
586.5
596.6
606.7
616.8
626.9
637.0
647.1
657.2
667.3
677.4
687.5
697.6
707.7
717.8
727.9
738.0
748.1
758.2
768.3
778.4
788.5
798.6
808.7
818.8
828.9
839.0
849.1
859.2
869.3
879.4
889.5
899.7
909.8
919.9
930.0
940.1
950.2
960.3
970.4
980.5
990.6
1000.7
1010.8
1020.9
1031.0
1041.1
1051.2
1061.3
1071.4
1081.5
1091.6
1101.7
1111.8
1122.0
1132.1
1142.2
1152.3
1162.4
1172.5
1182.6
1192.7
1202.8
1212.9
1223.0
1233.1
1243.2
1253.3
1263.4
1273.5
1283.6
1293.7
1303.8
1314.0
1324.1
1334.2
1344.3
1354.4
1364.5
1374.6
1384.7
1394.8
1404.9
1415.0
1425.1
1435.2
1445.3
1455.4
1465.5
1475.6
1485.7
1495.9
1506.0
1516.1
83.7
93.6
103.6
113.6
123.6
133.7
143.7
153.7
163.8
173.8
183.9
194.0
204.0
214.1
224.2
234.3
244.4
254.4
264.5
274.6
284.7
294.8
304.9
315.0
325.1
335.1
345.2
355.3
365.4
375.5
385.6
395.7
405.8
415.9
426.0
436.1
446.2
456.3
466.4
476.5
486.6
496.7
506.8
516.9
527.0
537.1
547.2
557.3
567.4
577.5
587.6
597.7
607.8
617.9
628.0
638.1
648.2
658.3
668.4
678.5
688.6
698.7
708.8
718.9
729.0
739.1
749.3
759.4
769.5
779.6
789.7
799.8
809.9
820.0
830.1
840.2
850.3
860.4
870.5
880.6
890.7
900.8
910.9
921.0
931.1
941.2
951.3
961.4
971.5
981.6
991.8
1001.9
1012.0
1022.1
1032.2
1042.3
1052.4
1062.5
1072.6
1082.7
1092.8
1102.9
1113.0
1123.1
1133.2
1143.3
1153.4
1163.5
1173.6
1183.7
1193.8
1204.0
1214.1
1224.2
1234.3
1244.4
1254.5
1264.6
1274.7
1284.8
1294.9
1305.0
1315.1
1325.2
1335.3
1345.4
1355.5
1365.6
1375.7
1385.9
1396.0
1406.1
1416.2
1426.3
1436.4
1446.5
1456.6
1466.7
1476.8
1486.9
1497.0
83.7
92.5
103.6
112.7
123.6
132.8
143.7
153.0
163.8
173.2
183.9
193.4
204.0
213.6
224.2
233.8
244.4
254.0
264.5
274.2
284.7
294.4
304.9
314.6
325.1
334.8
345.2
355.0
365.4
375.2
385.6
395.4
405.8
415.6
426.0
435.8
446.2
456.0
466.4
476.2
486.6
496.5
506.8
516.7
527.0
536.9
547.2
557.1
567.4
577.3
587.6
597.5
607.8
617.7
628.0
637.9
648.2
658.1
668.4
678.3
688.6
698.6
708.8
718.8
729.0
739.0
749.3
759.2
769.5
779.4
789.7
799.6
809.9
819.8
830.1
840.0
850.3
860.2
870.5
880.5
890.7
900.7
910.9
920.9
931.1
941.1
951.3
961.3
971.5
981.5
991.8
1001.7
1012.0
1021.9
1032.2
1042.2
1052.4
1062.4
1072.6
1082.6
1092.8
1102.8
1113.0
1123.0
1133.2
1143.2
1153.4
1163.4
1173.6
1183.6
1193.8
1203.9
1214.1
1224.1
1234.3
1244.3
1254.5
1264.5
1274.7
1284.7
1294.9
1304.9
1315.1
1325.1
1335.3
1345.3
1355.5
1365.5
1375.7
1385.8
1396.0
1406.0
1416.2
1426.2
1436.4
1446.4
1456.6
1466.6
1476.8
1486.8
1497.0
69
79
90
100
110
121
131
141
151
162
172
182
192
202
212
223
233
243
253
263
273
283
294
304
314
324
334
344
354
365
375
385
395
405
415
425
435
446
456
466
476
486
496
506
516
527
537
547
557
567
577
587
597
607
618
628
638
648
658
668
678
688
698
709
719
729
739
749
759
769
779
789
800
810
820
830
840
850
860
870
880
891
901
911
921
931
941
951
961
971
982
992
1002
1012
1022
1032
1042
1052
1062
1073
1083
1093
1103
1113
1123
1133
1143
1153
1164
1174
1184
1194
1204
1214
1224
1234
1244
1255
1265
1275
1285
1295
1305
1315
1325
1335
1345
1356
1366
1376
1386
1396
1406
1416
1426
1436
1447
1457
1467
1477
1487
116.9
127.1
137.2
147.4
157.5
167.7
177.8
188.0
198.1
208.2
218.4
228.5
238.6
248.7
258.9
269.0
279.1
289.2
299.3
309.5
319.6
329.7
339.8
349.9
360.0
370.1
380.3
390.4
400.5
410.6
420.7
430.8
440.9
451.0
461.1
471.3
481.4
491.5
501.6
511.7
521.8
531.9
542.0
552.1
562.2
572.4
582.5
592.6
602.7
612.8
622.9
633.0
643.1
653.2
663.3
673.4
683.6
693.7
703.8
713.9
724.0
734.1
744.2
754.3
764.4
774.5
784.6
794.7
804.9
815.0
825.1
835.2
845.3
855.4
865.5
875.6
885.7
895.8
905.9
916.0
926.1
936.2
946.4
956.5
966.6
976.7
986.8
996.9
1007.0
1017.1
1027.2
1037.3
1047.4
1057.5
1067.6
1077.8
1087.9
1098.0
1108.1
1118.2
1128.3
1138.4
1148.5
1158.6
1168.7
1178.8
1188.9
1199.0
1209.1
1219.2
1229.4
1239.5
1249.6
1259.7
1269.8
1279.9
1290.0
1300.1
1310.2
1320.3
1330.4
1340.5
1350.6
1360.7
1370.9
1381.0
1391.1
1401.2
1411.3
1421.4
1431.5
1441.6
1451.7
1461.8
1471.9
1482.0
1492.1
1502.2
1512.3
1522.5
1532.6
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