EPT 雙節距滾子鏈鏈輪S型
   DOUBLE-PITCH ROLLER CHAIN SPROCKETS

  • 雙節距滾子鏈鏈輪
     這型號鏈輪為雙切齒的雙節距鏈輪
     此鏈輪齒數一定,鏈輪每旋轉一圈,鏈條與相鄰二齒中的一個齒嚙合,此齒數定義為”工作齒數”。
     在奇數齒情況下,鏈輪轉二圈,使每個齒與鏈條嚙合一次,這樣延長了鏈輪壽命。
  • Double Pitch Roller Chain Sprockets
     The type sprockets are double - cut double - pitch sprockets.
     The number of teeth of the sprocket is determined so that chain meshes with one of every two teeth of sprocket per turn of the sprocket. This number of teeth is termed "number of working teeth.
     In case of odd number of teeth, each tooth of the sprocket meshes with the chain per two turns of the sprocket, thus extending service life of the sprocket.

偶齒數:
有效齒數 14
實際齒數 28
Even number of teeth
Effective teeth 14
Actual teeth 28

奇齒數:
有效齒數 13 1/2
實際齒數 27
ODD number of teeth
Effective teeth 13
Actual teeth 27


2040 ( t = 7.2 ) P = 25.4 b1 = 7.85 Dr = 7.95

齒數
No. of
teeth
工作齒數
No of
working
teeth
節 徑
Pitch
Dia
Dp
外 徑
Outside
Dia
Do
測量距
Caliper
Dia
Dbor Dc
孔 徑 d
輪 轂 Hub
概 重
Approx
weight
kg
最 大
Min
最 小
Max
徑 Dh
Dia
長 L
Length
15
17
18
19
20
7
8
9
9
10
62.45
70.31
74.26
78.23
82.20
67
76
80
84
88
54.16
62.06
66.31
70.01
74.25



12.7
12.7



30
35



50
56



30
40



0.59
0.90
21
22
23
24
25
10
11
11
12
12
86.17
90.16
94.15
98.14
102.14
92
96
100
104
108
77.98
82.21
85.98
90.19
93.98
12.7
12.7
12.7
12.7
12.7
35
35
35
35
35
56
56
56
56
56
40
40
40
40
40
0.93
0.96
0.99
1.02
1.06
26
27
28
29
13
13
14
14
106.14
110.14
114.15
118.16
112
116
120
124
98.19
102.00
106.20
110.03
12.7
12.7
12.7
12.7
35
35
35
35
56
56
56
56
40
40
40
40
1.10
1.13
1.17
1.21

2050 ( t = 8.7 ) P = 31.75 b1 = 9.40 Dr = 10.16

15
17
18
19
20
7
8
9
9
10
78.06
87.89
92.83
97.78
102.75
84
94
100
105
110
67.47
77.36
82.67
87.29
92.59



12.7
19.1



42
46



65
70



40
45



1.29
1.56
21
22
23
24
25
10
11
11
12
12
107.72
112.70
117.68
122.67
127.67
115
120
125
130
135
97.26
102.54
107.25
112.51
117.26
19.1
19.1
19.1
19.1
19.1
46
46
46
46
46
70
70
70
70
70
45
45
45
45
45
1.62
1.68
1.74
1.80
1.87
26
27
28
29
13
13
14
14
132.67
137.67
142.68
147.69
140
145
150
155
122.51
127.28
132.52
137.32
19.1
19.1
19.1
19.1
46
46
46
46
70
70
70
70
45
45
45
45
1.94
2.01
2.09
2.16

2060 ( t = 11.7 ) P = 38.10 b1 = 12.57 Dr = 11.91

15
17
18
19
20
7
8
9
9
10
93.67
105.47
111.40
117.34
123.30
101
113
119
126
132
81.25
93.11
99.49
105.03
111.39



19.1
19.1



46
52



70
80



40
45



1.76
2.31
21
22
23
24
25
10
11
11
12
12
129.26
135.24
141.22
147.21
153.20
138
144
150
156
162
116.99
123.33
128.98
135.30
140.99
19.1
19.1
19.1
19.1
19.1
52
52
52
52
52
80
80
80
80
80
45
45
45
45
45
2.42
2.53
2.65
2.78
2.91
26
27
28
29
13
13
14
14
159.20
165.21
171.22
177.23
168
174
181
187
147.29
153.02
159.31
165.06
19.1
19.1
19.1
19.1
52
52
57
57
80
80
85
85
45
45
45
45
3.04
3.18
3.50
3.65

2080 ( t = 14.6 ) P = 50.80 b1 = 15.75 Dr = 15.88

15
17
18
19
20
7
8
9
9
10
124.90
140.62
148.53
156.45
164.39
135
151
159
167
176
108.33
124.15
132.65
140.04
148.51



25.4
25.4



60
60



90
90



50
60



3.77
4.46
21
22
23
24
25
10
11
11
12
12
172.34
180.31
188.29
196.28
204.27
184
192
200
208
216
155.99
164.43
171.97
180.40
187.99
25.4
25
25
25
25
60
60
60
60
60
90
92
92
92
92
60
59
59
59
59
4.70
5.02
5.28
5.56
5.85
26
27
28
29
13
13
14
14
212.27
220.28
228.30
236.31
224
233
241
249
196.39
204.03
212.42
220.09
25
25
25
25
60
60
60
60
92
92
92
92
59
59
59
59
6.15
6.46
6.78
7.12


注:1. 底徑用于偶數齒,卡尺測量直徑用于奇數齒。
  2. 陰影部份表示齒部淬火的庫存鏈輪。
  3. P:鏈條節距。b1:內鏈節內寬。Dr:滾子直徑。

NOTES:1. Bottom diameter for even number of teeth, Caliper diameter for odd number of teeth.
    2. SHADED ZONE is hardened teeth stock sprockets.
    3. P:Chain Pitch. b1:Distance between inside links. Dr:Roller diameter.


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