Duplex-sprockets ASA40-2 (08A-2) acc. to DIN 8188

  • ISO-No.: ASA40-2 = 08A-2 (1/2“ x 5/16“)
  • pitch: 12,7 mm
  • inner width: 7,94 mm
  • Roller-dia: 7,94 mm
  • tooth width bf2: 21,6 mm
  • ba 1,6 mm (radius width)
  • rx 13,5 mm (min. tooth radius)
No. of teeth pitch circle tip circle hub pilot bore bore total weight
Ø Ø Ø Ø max. length approx
z do dk dn d1 d2 L kg
13 53,10 57,0 38 12 23 35 0,36
14 57,10 62,0 42 12 26 35 0,44
15 61,10 66,0 46 12 28 35 0,52
16 65,10 70,0 50 14 30 35 0,63
17 69,10 74,0 54 14 33 35 0,73
18 73,10 78,0 58 14 36 35 0,85
19 77,20 82,0 62 14 39 35 0,97
20 81,20 86,0 66 14 42 35 1,10
21 85,20 90,0 70 16 44 40 1,29
22 89,20 94,0 70 16 44 40 1,37
23 93,30 99,0 70 16 44 40 1,64
24 97,30 102,0 75 16 46 40 1,82
25 101,30 106,0 80 16 48 40 2,02
26 105,40 110,0 85 20 52 40 2,12
27 109,40 114,0 85 20 52 40 2,34
28 113,40 118,0 90 20 50 40 2,56
30 121,50 128,0 100 20 53 40 2,79