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#25 Chain Sprocket - Nylon Series

#25 Chain Sprocket - Nylon Series
  • B = Bore
  • T = Teeth
  • OD = Outside Diameter
  • PD = Pitch Diameter
  • RT = Root Diameter
Aluminum hubs are available for greater strength on sprockets with 16 teeth and larger, add A to the end of the catalog number.
Part Bore Teeth Outside Diameter Pitch Diameter Root Diameter
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FCN-A1-9 1/4 9 0.850 .731 .601
FCN-A1-10 1/4 10 0.931 .809 .769
FCN-A1-11 1/4 11 1.010 .887 .757
FCN-A1-12 1/4 12 1.092 .996 .836
FCN-A1-13 1/4 13 1.170 1.044 .914
FCN-A1-14 1/4 14 1.250 1.123 .993
FCN-A1-15 1/4 15 1.332 1.202 1.072
FCN-A1-16 1/4 16 1.412 1.281 1.151
FCN-A1-17 1/4 17 1.493 1.360 1.230
FCN-A1-18 1/4 18 1.573 1.439 1.309
FCN-A1-19 1/4 19 1.654 1.519 1.389
FCN-A1-20 1/4 20 1.731 1.598 1.468
FCN-A1-21 1/4 21 1.813 1.677 1.547
FCN-A1-22 1/4 22 1.892 1.757 1.626
FCN-A1-23 1/4 23 1.972 1.839 1.706
FCN-A1-24 1/4 24 2.052 1.915 1.785
FCN-A1-26 1/4 26 2.214 2.074 1.944
FCN-A1-28 1/4 28 2.368 2.233 2.103
FCN-A1-30 1/4 30 2.529 2.392 2.262
FCN-A1-32 1/4 32 2.686 2.550 2.420
FCN-A1-36 1/4 36 3.003 2.868 2.738
FCN-A1-40 1/4 40 3.319 3.186 3.056
FCN-A1-42 1/4 41 3.484 3.345 3.215
FCN-A1-45 1/4 45 3.716 3.583 3.454
FCN-A1-48 1/4 48 3.955 3.822 3.692
FCN-A2-9 3/8 9 0.850 .731 .601
FCN-A2-10 3/8 10 0.931 .809 .769
FCN-A2-11 3/8 11 1.010 .887 .757
FCN-A2-12 3/8 12 1.092 .996 .836
FCN-A2-13 3/8 13 1.170 1.044 .914
FCN-A2-14 3/8 14 1.250 1.123 .993
FCN-A2-15 3/8 15 1.332 1.202 1.072
FCN-A2-16 3/8 16 1.412 1.281 1.151
FCN-A2-17 3/8 17 1.493 1.360 1.230
FCN-A2-18 3/8 18 1.573 1.439 1.309
FCN-A2-19 3/8 19 1.654 1.519 1.389
FCN-A2-20 3/8 20 1.731 1.598 1.468
FCN-A2-21 3/8 21 1.813 1.677 1.547
FCN-A2-22 3/8 22 1.892 1.757 1.626
FCN-A2-23 3/8 23 1.972 1.836 1.706
FCN-A2-24 3/8 24 2.052 1.915 1.785
FCN-A2-26 3/8 26 2.214 2.074 1.944
FCN-A2-28 3/8 28 2.368 2.233 2.103
FCN-A2-30 3/8 30 2.529 2.392 2.262
FCN-A2-32 3/8 32 2.686 2.550 2.420
FCN-A2-36 3/8 36 3.003 2.868 2.738
FCN-A2-40 3/8 40 3.319 3.186 3.056
FCN-A2-42 3/8 42 3.484 3.345 3.215
FCN-A2-45 3/8 45 3.716 3.583 3.454
FCN-A2-48 3/8 48 3.955 3.822 3.692
FCN-A3-14 1/2 14 1.250 1.123 .993
FCN-A3-15 1/2 15 1.332 1.202 1.072
FCN-A3-16 1/2 16 1.412 1.281 1.151
FCN-A3-17 1/2 17 1.493 1.360 1.230
FCN-A3-18 1/2 18 1.573 1.439 1.309
FCN-A3-19 1/2 19 1.654 1.519 1.389
FCN-A3-20 1/2 20 1.731 1.598 1.468
FCN-A3-21 1/2 21 1.813 1.677 1.547
FCN-A3-22 1/2 22 1.892 1.757 1.626
FCN-A3-23 1/2 23 1.972 1.836 1.706
FCN-A3-24 1/2 24 2.052 1.915 1.785
FCN-A3-26 1/2 26 2.214 2.074 1.944
FCN-A3-28 1/2 28 2.368 2.233 2.103
FCN-A3-30 1/2 30 2.529 2.392 2.262
FCN-A3-32 1/2 32 2.686 2.550 2.420
FCN-A3-36 1/2 36 3.003 2.868 2.738
FCN-A3-40 1/2 40 3.319 3.186 3.056
FCN-A3-42 1/2 42 3.484 3.345 3.215
FCN-A3-45 1/2 45 3.716 3.583 3.454
FCN-A3-48 1/2 48 3.955 3.822 3.692