duplex Sprockets with hub (B)20B-2 (31.75X19.56mm)
duplex Sprockets with hub (B)20B-2 (31.75X19.56mm)

Item specifics

Material:
Carbon Steel C45
Heat Treatment:
Through hardening
Color:
Zincplated,Nickel Plated,Black Finished
Shipping:
Support Sea freight.Express.Land freight.

Product review

Description

Pitch
31.75
Rollerφ
19.05
r
32
C
3.5
h1
18.5
L
18.2
h2
54.6


Z
De
Dp
Duplex
d
D
H
mm
mm
mm
mm
mm
8
98.1
82.96
53
20
75
9
108.0
92.84
63
20
75
10
117.9
102.74
70
20
75
11
127.8
112.68
80
20
80
12
137.8
122.68
90
20
80
13
147.8
132.65
100
20
80
14
157.8
142.68
110
20
80
15
167.9
152.72
120
20
80
16
177.9
162.75
120
25
80
17
187.9
172.78
120
25
80
18
198.0
182.85
120
25
80
19
208.1
192.91
120
25
80
20
218.1
202.98
120
25
80
21
228.2
213.04
140
25
80
22
238.2
223.11
140
25
80
23
248.3
233.17
140
25
80
24
258.4
243.23
140
25
80
25
268.5
253.33
140
25
80
26
278.6
263.40
150
25
80
27
288.6
273.48
150
25
80
28
298.7
283.56
150
25
80
29
308.8
293.65
150
25
80
30
318.9
303.75
150
25
80
31
329.0
313.85
150
25
80
32
339.1
323.91
150
25
80
33
349.2
334.01
150
25
80
34
359.3
334.10
150
25
80
35
369.4
354.20
150
25
80
36
379.5
364.30
150
30
80
37
389.5
374.39
150
30
80
38
399.6
384.49
150
30
80
39
409.7
394.59
150
30
80
40
419.8
404.56
150
30
80
42
440.0
424.88
/
/
/
45
470.3
455.17
160
30
101
46
480.4
465.26
160
30
101
48
500.6
485.46
/
/
/
50
520.8
505.65
160
30
101
57
591.5
576.36
180
40
116
60
621.8
606.65
/
/
/
76
783.5
768.32
180
40
116
95
975.2
960.28
200
40
116

Zmie has 2 kinds of sprockets, one is a plate wheel, flat and no hub, they are usually mounted on flanges or hubs of the device they are driving through a series of holes that ae plain or tapered.

Zmie sprockets has a wide range of standard sprockets, convering sprockets and plate wheels in sizes 03 B-1 to 32 B-3. Furthermore, Zmie provides fully finished bore sprockets manufactured according to customer designs and drawings.