NK Standard Sprockets B Type (Duplex)

NK Standard Sprockets B Type (Duplex) (Japanese Standard)

NK35-2B

Chain Type
No.35-2

Pitch
(P)
9.525 mm

Internal Width
(W)
4.78 mm

Roller Dia.
(Dr)
5.08 mm

Teeth width
(T)
4.1 mm

(M)
14.2 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK35-2B
10
34
30.82
9
11
10
20
30
0.10

11
38
33.81
10
12
12
23
30
0.11

12
41
36.80
10
12
14
26
30
0.14

13
44
39.80
10
12
14
27
30
0.17

14
47
42.81
10
12
18
32
30
0.21

15
51
45.81
10
12
20
35
30
0.25

16
54
48.82
10
12
20
38
30
0.29

17
57
51.84
11.5
13.5
22
41
30
0.34

18
60
54.85
11.5
13.5
25
44
35
0.45

19
63
57.87
11.5
13.5
28
47
35
0.51

20
66
60.89
12
14
30
50
40
0.64

21
69
63.91
12
14
30
50
40
0.64

22
72
66.93
12
14
32
55
40
0.67

24
78
72.97
15
17
38
60
40
0.82

25
81
76.00
15
17
38
60
40
0.92

28
90
85.07
15
17
42
65
45
1.26

30
96
91.12
15
17
42
65
45
1.34

32
102
97.18
15
17
42
65
45
1.43

40
127
121.40
15
17
42
65
45
2.30

45
142
136.55
19
21
55
83
45
2.84

50
157
151.70
19
21
55
83
45
3.22

60
187
182.00
19
21
63
93
50
4.70

 

 

NK40-2B

Chain Type
No.40-2

Pitch
(P)
12.7 mm

Internal width
(W)
7.95 mm

Roller Dia.
(Dr)
7.95 mm

Teeth width
(T)
7.0 mm

(M)
21.4 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK40-2B
10
46
41.10
13
15
16
28
35
0.28

11
51
45.08
13
15
16
30
35
0.30

12
55
49.07
14
16
20
35
35
0.34

13
59
53.07
14
16
22
39
35
0.40

14
63
57.07
14
16
25
43
35
0.47

15
67
61.08
14
16
28
47
35
0.55

16
71
65.10
14
16
30
50
35
0.65

17
76
69.12
14
16
32
54
35
0.75

18
80
73.14
14
16
38
59
35
0.85

19
84
77.16
14
16
42
63
35
0.98

20
88
81.18
14
16
45
67
40
1.30

21
92
85.21
14
16
45
68
40
1.30

22
96
89.24
14
16
48
72
40
1.50

23
100
93.27
14
16
51
76
40
1.60

24
104
97.30
14
16
55
80
40
1.80

25
108
101.33
18
20
57
84
40
2.00

26
112
105.36
18
20
60
88
40
2.20

27
116
109.40
18
20
60
92
40
2.30

28
120
113.43
18
20
66
96
40
2.50

29
124
117.46
18
20
66
96
40
2.65

30
128
121.50
18
20
66
100
40
2.80

31
133
125.53
23
25
66
100
50
2.95

32
137
129.57
23
25
66
100
50
3.05

33
141
133.61
23
25
66
100
50
3.06

34
145
137.64
23
25
66
100
50
3.08

35
149
141.68
23
25
66
100
50
3.10

36
153
145.72
23
25
66
100
50
3.30

37
157
149.75
23
25
66
100
50
3.40

38
161
153.79
23
25
66
100
50
3.50

40
169
161.87
23
25
66
100
50
3.60

42
177
169.95
23
25
63
93
50
4.00

45
189
182.06
23
25
63
93
50
4.60

48
201
194.18
23
25
63
93
50
5.00

50
209
202.26
23
25
63
93
50
5.50

54
226
218.42
23
25
63
93
50
5.80

60
250
242.66
23
25
63
93
50
6.70

65
270
262.87
23
25
63
93
50
10.20

70
290
283.07
23
25
63
93
50
11.50

 

 

  

NK50-2B

Chain Type
No.50-2

Pitch
(P)
15.875 mm

Internal width
(W)
9.53 mm

Roller Dia.
(Dr)
10.16 mm

Teeth width
(T)
8.4 mm

(M)
26.5 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK50-2B
10
58
51.37
14
16
20
35
40
0.50

11
64
56.35
14
16
22
40
40
0.50

12
69
61.34
14
16
25
42
40
0.62

13
74
66.34
14
16
30
49
40
0.75

14
79
71.34
14
16
32
54
40
0.90

15
84
76.35
14
16
38
59
40
1.10

16
89
81.37
14
16
42
64
45
1.40

17
94
86.39
14
16
45
68
45
1.60

18
100
91.42
14
16
48
74
45
1.80

19
105
96.45
14
16
55
79
45
2.10

20
110
101.48
18
20
57
84
45
2.30

21
115
106.51
18
20
60
89
45
2.60

22
120
111.55
18
20
63
94
50
3.00

23
125
116.58
18
20
66
99
50
3.50

24
130
121.62
18
20
70
105
50
3.80

25
135
126.66
18
20
70
105
50
4.20

26
140
131.70
18
20
70
105
50
4.50

27
145
136.74
18
20
70
105
50
4.80

28
150
141.79
18
20
75
110
50
5.10

29
155
146.83
18
20
75
110
50
5.50

30
161
151.87
18
20
80
120
50
5.80

31
166
156.92
23
25
80
120
50
5.90

32
171
161.96
23
25
80
120
50
6.00

33
176
167.01
23
25
80
120
50
6.50

34
181
172.05
23
25
80
120
50
6.80

35
186
177.10
23
25
80
117
50
7.00

36
191
182.14
23
25
80
117
50
7.00

38
201
192.24
23
25
80
117
50
8.00

40
211
202.33
23
25
80
117
56
9.00

42
221
212.43
23
25
66
98
56
8.88

45
237
227.58
23
25
66
98
56
9.96

48
252
242.73
23
25
66
98
56
8.00

50
262
252.83
23
25
66
98
56
9.00

54
282
273.02
23
25
66
98
63
9.90

60
312
303.33
23
25
66
98
63
11.70

65
338
328.58
23
25
66
98
63
13.00

70
363
353.84
23
25
66
98
63
15.00

 

 

NK60-2B

Chain Type
No.60-2

Pitch
(P)
19.05 mm

Internal width
(W)
12.70 mm

Roller Dia.
(Dr)
11.91 mm

Teeth width
(T)
11.3 mm

(M)
34.1 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK60-2B
10
68
61.65
16
18
20
35
50
0.9

11
76
67.62
16
18
25
44
50
1.0

12
83
73.60
16
18
30
50
50
1.2

13
89
79.60
18
20
35
57
50
1.4

14
95
85.61
18
20
42
64
56
1.8

15
101
91.62
18
20
46
70
56
2.1

16
107
97.65
18
20
51
76
56
2.5

17
113
103.67
18
20
55
82
56
2.6

18
119
109.71
18
20
60
88
56
3.2

19
126
115.74
18
20
63
94
56
3.7

20
132
121.78
23
25
66
100
56
4.2

21
138
127.82
23
25
66
100
56
4.4

22
144
133.86
23
25
66
100
56
4.9

23
150
139.90
23
25
66
100
56
4.7

24
156
145.95
23
25
80
120
56
6.0

25
162
151.99
23
25
80
120
56
6.4

26
168
158.04
23
25
80
120
56
6.8

27
174
164.09
23
25
80
120
56
7.3

28
180
170.14
23
25
80
120
56
7.8

29
187
176.20
28
30
80
120
56
8.2

30
193
182.25
28
30
89
130
56
9.0

31
199
188.30
28
30
89
127
56
9.3

32
205
194.35
28
30
89
127
56
9.5

33
211
200.41
28
30
89
127
56
9.7

34
217
206.46
28
30
89
127
56
10.5

35
223
212.52
28
30
89
127
56
11.0

36
229
218.57
28
30
66
98
56
8.5

38
241
230.69
28
30
66
98
56
9.0

40
253
242.80
28
30
66
98
56
9.7

42
266
254.92
28
30
75
107
56
11.0

45
284
273.09
28
30
75
107
71
12.8

48
302
291.27
28
30
75
107
71
14.0

50
314
303.39
28
30
75
107
71
16.0

54
338
327.63
28
30
75
107
71
18.0

60
375
363.99
28
30
75
107
71
21.5

65
405
394.30
28
30
75
107
71
24.0

70
436
424.61
28
30
75
107
71
30.0

 

 

NK80-2B

Chain Type
No.80-2

Pitch
(P)
25.4 mm

Internal width
(W)
15.88 mm

Roller Dia.
(Dr)
15.88 mm

Teeth width
(T)
14.1 mm

(M)
43.4 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK80-2B
10
93
82.19
21
23
35
58
63
2.0

11
102
90.16
21
23
38
60
63
2.5

12
110
98.14
23
25
46
69
63
2.7

13
118
106.14
23
25
55
80
63
3.4

14
127
114.15
23
25
60
88
63
3.9

15
135
122.17
23
25
63
95
63
4.4

16
143
130.20
23
25
66
100
71
5.4

17
151
138.23
23
25
66
100
71
6.0

18
159
146.27
23
25
80
120
71
7.5

19
167
154.32
23
25
80
120
71
8.0

20
176
162.37
23
25
89
130
71
9.0

21
184
170.42
23
25
89
130
71
10.3

22
192
178.48
33
35
80
117
71
11.0

23
200
186.54
33
35
80
117
71
11.8

24
208
194.60
33
35
80
117
80
12.6

25
216
202.66
33
35
80
117
80
13.4

26
224
210.72
33
35
80
117
80
14.3

28
241
226.86
33
35
80
117
80
16.0

30
257
243.00
33
35
80
117
80
18.3

32
273
259.14
33
35
80
117
80
20.4

35
297
283.36
33
35
80
117
80
23.9

36
306
291.43
33
35
80
117
80
25.1

38
322
307.58
38
40
89
127
80
27.7

40
338
323.74
38
40
89
127
90
30.4

42
354
339.89
38
40
89
127
90
33.0

45
378
364.12
38
40
89
127
90
37.5

48
403
388.36
38
40
89
127
90
43.0

50
419
404.52
38
40
89
127
90
46.0

54
451
436.84
38
40
89
127
90
52.5

60
500
485.33
38
40
89
127
90
64.0

62
516
501.49
38
40
89
127
90
69.0

65
540
525.73
38
40
89
127
90
73.5

70
581
566.15
38
40
89
127
90
90.4

 

 

NK100-2B

Chain Type
No.100-2

Pitch
(P)
31.75 mm

Internal width
(W)
19.05 mm

Roller Dia.
(Dr)
19.05 mm

Teeth width
(T)
17.0 mm

(M)
52.8 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK100-2B
10
117
102.74
22
24
46
70
80
3.50

11
127
112.70
22
24
55
80
80
4.20

12
138
122.67
28
30
60
90
80
5.00

13
148
132.67
28
30
66
100
80
6.00

14
158
142.68
28
30
75
110
80
7.00

15
168
152.71
28
30
80
120
80
7.10

16
179
162.74
28
30
89
130
80
7.70

17
189
172.79
28
30
89
130
80
8.90

18
199
182.84
28
30
89
130
80
9.60

19
209
192.90
28
30
89
130
90
12.80

20
220
202.96
28
30
89
130
90
13.50

21
230
213.03
28
30
89
130
90
14.30

22
240
223.10
28
30
89
127
90
19.35

23
250
233.17
28
30
89
127
90
20.85

24
260
243.25
38
40
95
137
90
22.62

25
270
253.32
38
40
95
137
90
24.25

26
281
263.40
38
40
95
137
90
25.94

28
301
283.57
38
40
95
137
90
29.52

30
321
303.75
38
40
95
137
90
33.37

32
341
323.92
38
40
95
137
90
37.48

35
372
354.20
38
40
95
137
90
44.15

36
382
364.29
38
40
95
137
90
46.50

38
402
384.48
38
40
95
137
90
51.41

40
422
404.67
38
40
103
147
100
58.46

42
443
424.86
38
40
103
147
100
63.90

45
473
455.16
38
40
103
147
100
72.56

48
503
485.45
38
40
103
147
100
81.81

50
524
505.65
38
40
103
147
100
88.31

54
564
546.05
38
40
103
147
100
102.11

 

 

NK120-2B

Chain Type
No.120-2

Pitch
(P)
38.10 mm

Internal width
(W)
25.40 mm

Roller Dia.
(Dr)
22.23 mm

Teeth width
(T)
22.7 mm

(M)
68.1 mm

Sprockets No.
Outside Dia.
Do
Pitch Dia.
Dp
Bore d
Hub
Weight
(kg)

Type
Teeth No.
Stock
min.
max.
BD
BL

NK120-2B
10
140
123.29
26
28
55
80
100
8.0

11
153
135.24
26
28
60
90
100
8.7

12
165
147.21
28
30
66
100
100
9.2

13
177
159.20
28
30
75
115
100
10.9

14
190
171.22
28
30
80
120
100
11.4

15
202
183.25
38
40
80
120
100
13.2

16
214
195.29
38
40
95
140
100
16.5

17
227
207.35
38
40
95
140
100
19.0

18
239
219.41
38
40
103
150
100
21.0

19
251
231.48
38
40
103
150
100
23.0

20
263
243.55
38
40
103
150
100
26.0

21
276
255.63
38
40
103
150
100
28.0

22
288
267.72
38
40
103
147
100
30.0

23
300
279.80
38
40
103
147
100
33.0

24
312
291.90
38
40
110
157
100
31.0

25
324
303.99
38
40
110
157
100
33.0

26
337
316.09
38
40
110
157
100
35.0

28
361
340.29
38
40
110
157
100
39.0

30
385
364.50
38
40
110
157
100
43.9

32
410
388.71
38
40
110
157
100
47.0

35
446
425.04
38
40
110
157
100
56.8

36
458
437.15
38
40
110
157
100
60.0

38
483
461.38
38
40
110
157
100
67.0