Sprocket type 28B | Sprockets | Standard Parts | Manufactures
Sprocket
Type 28B
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
44.45 mm
27.94 mm
29.4 mm
28.8 mm
28.8 mm
59.56 mm
5.8 mm
22.2 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
143.8
157.8
171.7
185.7
199.8
213.8
227.8
241.9
256.0
270.1
284.1
298.2
312.3
326.4
340.5
354.7
368.8
382.9
397.0
411.1
425.2
439.4
453.5
467.6
481.7
495.9
510.0
524.1
538.3
552.4
566.5
580.7
594.8
608.9
623.1
637.2
651.4
665.5
679.6
693.8
707.9
722.0
736.2
750.3
764.5
778.6
792.8
806.9
821.0
835.2
849.3
863.5
877.6
891.7
905.9
920.0
934.2
948.3
962.5
976.6
990.8
1004.9
1019.0
1033.2
1047.3
1061.5
1075.6
1089.8
1103.9
1118.1
1132.2
1146.3
1160.5
1174.6
1188.8
1202.9
1217.1
1231.2
1245.4
1259.5
1273.7
1287.8
1301.9
1316.1
1330.2
1344.4
1358.5
1372.7
1386.8
1401.0
1415.1
1429.3
1443.4
1457.6
1471.7
1485.9
1500.0
1514.1
1528.3
1542.4
1556.6
1570.7
1584.9
1599.0
1613.2
1627.3
1641.5
1655.6
1669.8
1683.9
1698.1
1712.2
1726.4
1740.5
1754.6
1768.8
1782.9
1797.1
1811.2
1825.4
1839.5
1853.7
1867.8
1882.0
1896.1
1910.3
1924.4
1938.6
1952.7
1966.9
1981.0
1995.2
2009.3
2023.5
2037.6
2051.7
2065.9
2080.0
2094.2
2108.3
2122.5
115.9
129.8
143.8
157.8
171.8
185.9
199.9
214.0
228.0
242.1
256.2
270.3
284.4
298.5
312.6
326.7
340.8
354.9
369.1
383.2
397.3
411.4
425.6
439.7
453.8
467.9
482.1
496.2
510.3
524.5
538.6
552.7
566.9
581.0
595.1
609.3
623.4
637.6
651.7
665.8
680.0
694.1
708.2
722.4
736.5
750.7
764.8
779.0
793.1
807.2
821.4
835.5
849.7
863.8
878.0
892.1
906.2
920.4
934.5
948.7
962.8
977.0
991.1
1005.2
1019.4
1033.5
1047.7
1061.8
1076.0
1090.1
1104.3
1118.4
1132.6
1146.7
1160.8
1175.0
1189.1
1203.3
1217.4
1231.6
1245.7
1259.9
1274.0
1288.2
1302.3
1316.4
1330.6
1344.7
1358.9
1373.0
1387.2
1401.3
1415.5
1429.6
1443.8
1457.9
1472.1
1486.2
1500.4
1514.5
1528.6
1542.8
1556.9
1571.1
1585.2
1599.4
1613.5
1627.7
1641.8
1656.0
1670.1
1684.3
1698.4
1712.6
1726.7
1740.9
1755.0
1769.2
1783.3
1797.4
1811.6
1825.7
1839.9
1854.0
1868.2
1882.3
1896.5
1910.6
1924.8
1938.9
1953.1
1967.2
1981.4
1995.5
2009.7
2023.8
2038.0
2052.1
2066.3
2080.4
2094.5
115.9
128.2
143.8
156.4
171.8
184.7
199.9
212.9
228.0
241.2
256.2
269.5
284.4
297.7
312.6
326.0
340.8
354.3
369.1
382.6
397.3
410.9
425.6
439.1
453.8
467.4
482.1
495.7
510.3
524.0
538.6
552.3
566.9
580.6
595.1
608.9
623.4
637.2
651.7
665.5
680.0
693.8
708.2
722.1
736.5
750.4
764.8
778.6
793.1
806.9
821.4
835.2
849.7
863.5
878.0
891.8
906.2
920.1
934.5
948.4
962.8
976.7
991.1
1005.0
1019.4
1033.3
1047.7
1061.6
1076.0
1089.9
1104.3
1118.2
1132.6
1146.5
1160.8
1174.8
1189.1
1203.1
1217.4
1231.4
1245.7
1259.7
1274.0
1288.0
1302.3
1316.3
1330.6
1344.6
1358.9
1372.9
1387.2
1401.2
1415.5
1429.5
1443.8
1457.7
1472.1
1486.0
1500.4
1514.3
1528.6
1542.6
1556.9
1570.9
1585.2
1599.2
1613.5
1627.5
1641.8
1655.8
1670.1
1684.1
1698.4
1712.4
1726.7
1740.7
1755.0
1769.0
1783.3
1797.3
1811.6
1825.6
1839.9
1853.9
1868.2
1882.2
1896.5
1910.5
1924.8
1938.8
1953.1
1967.1
1981.4
1995.4
2009.7
2023.7
2038.0
2052.0
2066.3
2080.3
2094.5
97
112
126
141
155
169
184
198
212
227
241
255
269
284
298
312
326
340
355
369
383
397
411
426
440
454
468
482
497
511
525
539
553
567
582
596
610
624
638
653
667
681
695
709
723
738
752
766
780
794
808
822
837
851
865
879
893
907
922
936
950
964
978
992
1007
1021
1035
1049
1063
1077
1092
1106
1120
1134
1148
1162
1176
1191
1205
1219
1233
1247
1261
1276
1290
1304
1318
1332
1346
1360
1375
1389
1403
1417
1431
1445
1460
1474
1488
1502
1516
1530
1544
1559
1573
1587
1601
1615
1629
1644
1658
1672
1686
1700
1714
1728
1743
1757
1771
1785
1799
1813
1827
1842
1856
1870
1884
1898
1912
1927
1941
1955
1969
1983
1997
2011
2026
2040
2054
2068
2082
162.4
176.6
190.8
205.1
219.3
233.5
247.7
261.9
276.1
290.3
304.4
318.6
332.8
347.0
361.1
375.3
389.5
403.6
417.8
432.0
446.1
460.3
474.4
488.6
502.8
516.9
531.1
545.2
559.4
573.6
587.7
601.9
616.0
630.2
644.3
658.5
672.6
686.8
701.0
715.1
729.3
743.4
757.6
771.7
785.9
800.0
814.2
828.3
842.5
856.6
870.8
884.9
899.1
913.3
927.4
941.6
955.7
969.9
984.0
998.2
1012.3
1026.5
1040.6
1054.8
1068.9
1083.1
1097.2
1111.4
1125.5
1139.7
1153.8
1168.0
1182.1
1196.3
1210.4
1224.6
1238.7
1252.9
1267.0
1281.2
1295.3
1309.5
1323.6
1337.8
1351.9
1366.1
1380.2
1394.4
1408.5
1422.7
1436.8
1451.0
1465.1
1479.3
1493.4
1507.6
1521.7
1535.9
1550.0
1564.2
1578.3
1592.5
1606.6
1620.8
1634.9
1649.1
1663.2
1677.4
1691.5
1705.7
1719.8
1734.0
1748.1
1762.3
1776.4
1790.6
1804.7
1818.9
1833.0
1847.2
1861.3
1875.5
1889.6
1903.8
1917.9
1932.1
1946.2
1960.4
1974.5
1988.7
2002.8
2017.0
2031.1
2045.3
2059.4
2073.6
2087.7
2101.9
2116.0
2130.2
2144.3
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