Sprockets KRS with One-Sided Hub, Pitch 1 1/4 x 3/4", ISO 20 B-1

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Material: Steel C45, not hardened. Pre-bored. Sprockets marked with * from grey cast iron GG25. Sprockets marked with 1) are from steel St52 with welded hub.


General dimensions: B1 = 18,5 mm, c = 3,5 mm, r3 = 32 mm.
Other dimensions: See the table.

SKU No. of Teeth da [mm] d [mm] ND [mm] B [mm] L [mm] Weight [kg]
10910800 8 96,5 82,97 53 20 40 0,95
10910900 9 106,7 92,83 63 20 40 1,29
10911000 10 116,9 102,75 70 20 40 1,62
10911100 11 127,1 112,70 77 20 45 2,16
10911200 12 137,2 122,67 88 20 45 2,70
10911300 13 147,4 132,67 98 20 45 3,28
10911400 14 157,5 142,68 108 20 45 3,91
10911500 15 167,7 152,71 118 20 45 4,60
10911600 16 177,8 162,75 120 25 50 5,38
10911700 17 188,0 172,79 120 25 50 5,75
10911800 18 198,1 182,84 120 25 50 6,15
10911900 19 208,2 192,90 120 25 50 6,58
10912000 20 218,4 202,96 120 25 50 7,02
10912100 21 228,5 213,03 140 25 55 9,06
10912200 22 238,6 223,10 140 25 55 9,55
10912300 23 248,7 233,17 140 25 55 10,06
10912400 24 258,9 243,25 140 25 55 10,59
10912500 25 269,0 253,32 140 25 55 11,15
10912600 26 279,1 263,41 150 25 55 12,38
10912700 27 289,2 273,49 150 30 55 12,89
10912800 28 299,3 283,57 150 25 55 13,61
10912900 29 309,5 293,66 150 25 55 14,26
10913000 30 319,6 303,75 150 30 55 14,84
10913100 31 329,7 313,83 150 25 55 15,63
10913200 32 339,8 323,92 150 25 55 16,35
10913300 33 349,9 334,01 150 25 55 17,09
10913400 34 360,0 344,10 150 25 55 17,86
10913500 35 370,1 354,20 150 30 55 19,25
10913600 36 380,3 364,29 150 25 55 19,46
10913700 37 390,4 374,38 150 25 55 20,30
10913800 38 400,5 384,48 125 35 70 11,90
10913900 39 410,6 394,57 150 25 55 22,04
10914000 40 420,7 404,67 150 25 55 22,95
10914500 45 471,3 455,15 125 35 70 13,80
10914800 48 501,6 485,45 160 25 80 35,52
10915000 50 521,8 505,65 160 25 80 37,78
10915700 57 592,6 576,35 135 40 80 24,00
10917600 76 784,6 768,30 140 50 90 37,50