nk40-2b.gif
m-11.gif m-9.gif 11-1e.gif
CHAIN TECHNICAL DATA
Chain Pitch   1/2
Inner Width   0.313
Roller Dia.   0.312
Tooth Width (T)
(M) 		0.275
0.841
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(Dimension : inch)
No.
Teeth		 Outside
Diameter
Do		 Bore (Inches) Hub (Inches) Weight
Lbs.
(App)
Stock
d		 Rec.
Max.		 Dia.
BD		 Length
Thru
BL
11 2.000 1/2 3/4 1 7/16* 11/2 .62
12 2.170 1/2 15/16 1 9/16* 11/2 .76
13 2.330 1/2 1 1 1/2 11/2 .86
14 2.490 1/2 1 1/8 1 11/16 11/2 1.08
15 2.650 1/2 1 1/4 1 13/16 11/2 1.24
16 2.810 5/8 1 3/8 2 11/2 1.42
17 2.980 5/8 1 7/16 2 1/8 11/2 1.64
18 3.140 5/8 11/2 2 5/16 11/2 1.92
19 3.300 5/8 1 3/4 2 1/2 11/2 2.22
20 3.460 5/8 1 7/8 2 5/8 1 5/8 2.64
21 3.620 5/8 1 7/8 2 3/4 1 5/8 2.94
22 3.780 5/8 1 7/8 2 7/8 1 5/8 3.18
23 3.940 5/8 2 3 1 5/8 3.52
24 4.100 5/8 2 1/4 3 1/4 1 5/8 4.04
25 4.260 5/8 2 1/4 3 1/4 1 5/8 4.26
26 4.420 5/8 2 1/4 3 1/4 1 5/8 4.48
30 5.060 7/8 2 1/4 3 1/4 1 5/8 5.34
35 5.860 7/8 2 1/4 3 1/4 1 5/8 6.80
36 6.020 15/16 2 1/2 3 3/4 1 5/8 7.20
40 6.650 15/16 2 1/2 3 3/4 1 3/4 9.40
42 6.970 15/16 2 1/2 3 3/4 1 3/4 10.20
45 7.450 15/16 2 1/2 3 3/4 1 3/4 11.36
48 7.930 15/16 2 1/2 3 3/4 1 3/4 12.66
52 8.570 15/16 2 1/2 3 3/4 1 3/4 14.46
54 8.890 15/16 2 1/2 3 3/4 1 3/4 15.48
60 9.840 15/16 2 1/2 3 3/4 1 3/4 18.60
68 11.120 1 3/16 2 3/4 4 1/4 2 1/8 24.96
72 11.750 1 3/16 2 3/4 4 1/4 2 1/8 27.88
76 12.390 1 3/16 2 3/4 4 1/4 2 1/8 30.18
84 13.660 1 3/16 2 3/4 4 1/4 2 1/8 36.24
95 15.410 1 3/16 2 3/4 4 1/4 2 1/8 38.84
96 15.570 1 3/16 2 3/4 4 1/4 2 1/8 39.50
102 16.530 1 3/16 2 3/4 4 1/4 2 1/8 42.72
112 18.120 1 3/16 2 3/4 4 1/4 2 1/8 55.54
*Has recessed groove in hub for chain clearance.
Maximum bores shown will accommodate standard keyseat and setscrew over keyseat.
Slightly larger Bores are passible with no Ks., Shallow Ks., or S.S. at angle to Ks.

NOTE : Double 40 stock sprockets with 25 teeth or less have Hardened Teeth.