Triplex sprockets with hub (B)20B-3 (31.75X19.56mm) | type b sprocket | 20b roller chain sprockets
Triplex sprockets with hub (B)20B-3 (31.75X19.56mm) | type b sprocket | 20b roller chain sprockets

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

Triplex sprockets with hub (B)20B-3 (31.75X19.56mm) | type b sprocket | 20b roller chain sprockets
Pitch
31.75
Rollerφ
19.05
r
32
C
3.5
h1
18.5
L
18.2
h2
54.6
h3
91


Z
De
Dp
Triplex
d
D
H
mm
mm
mm
mm
mm
8
98.1
82.96
53
20
110
9
108.0
92.84
63
20
110
10
117.9
102.74
70
20
110
11
127.8
112.68
80
20
115
12
137.8
122.68
90
20
115
13
147.8
132.65
100
20
115
14
157.8
142.68
110
20
115
15
167.9
152.72
120
20
115
16
177.9
162.75
120
25
115
17
187.9
172.78
120
25
115
18
198.0
182.85
120
25
115
19
208.1
192.91
120
25
115
20
218.1
202.98
120
25
115
21
228.2
213.04
140
25
115
22
238.2
223.11
140
25
115
23
248.3
233.17
140
25
115
24
258.4
243.23
140
25
115
25
268.5
253.33
140
25
115
26
278.6
263.40
150
25
115
27
288.6
273.48
150
25
115
28
298.7
283.56
150
25
115
29
308.8
293.65
150
25
115
30
318.9
303.75
150
25
115
31
329.0
313.85
150
30
115
32
339.1
323.91
150
30
115
33
349.2
334.01
150
30
115
34
359.3
334.10
150
30
115
35
369.4
354.20
150
30
115
36
379.5
364.30
150
30
115
37
389.5
374.39
150
30
115
38
399.6
384.49
150
30
115
39
409.7
394.59
150
30
115
40
419.8
404.56
150
30
115
42
440.0
424.88
/
/
/
45
470.3
455.17
160
40
121
46
480.4
465.26
/
/
/
48
500.6
485.46
/
/
/
50
520.8
505.65
160
40
121
57
591.5
576.36
200
40
123
60
621.8
606.65
/
/
/
76
783.5
768.32
200
40
123
95
975.2
960.28
/
/
/

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.