| 规格 |
齿数 |
节径 d |
外径 do |
档边直径 df |
档边内径 db |
档边厚度 h |
| 18-T20 |
18 |
114.59 |
111.76 |
124 |
98 |
4.5 |
| 19-T20 |
19 |
120.96 |
118.13 |
130 |
104 |
4.5 |
| 20-T20 |
20 |
127.35 |
124.49 |
136 |
110 |
4.5 |
| 21-T20 |
21 |
133.69 |
130.86 |
143 |
117 |
4.5 |
| 22-T20 |
22 |
140.06 |
137.23 |
149 |
123 |
4.5 |
| 23-T20 |
23 |
146.42 |
143.59 |
156 |
130 |
4.5 |
| 24-T20 |
24 |
152.79 |
149.96 |
162 |
136 |
4.5 |
| 25-T20 |
25 |
159.15 |
156.32 |
168 |
142 |
4.5 |
| 26-T20 |
26 |
165.52 |
162.69 |
175 |
149 |
4.5 |
| 27-T20 |
27 |
171.89 |
169.06 |
181 |
155 |
4.5 |
| 28-T20 |
28 |
178.25 |
175.42 |
187 |
161 |
4.5 |
| 29-T20 |
29 |
184.62 |
181.79 |
194 |
168 |
4.5 |
| 30-T20 |
30 |
190.99 |
188.16 |
200 |
174 |
4.5 |
| 32-T20 |
32 |
203.72 |
200.89 |
|
|
|
| 34-T20 |
34 |
216.45 |
213.62 |
|
|
|
| 36-T20 |
36 |
229.18 |
226.35 |
|
|
|
| 38-T20 |
38 |
241.92 |
239.09 |
|
|
|
| 40-T20 |
40 |
254.65 |
251.82 |
|
|
|
| 42-T20 |
42 |
267.38 |
264.55 |
|
|
|
| 44-T20 |
44 |
280.11 |
277.28 |
|
|
|
| 46-T20 |
46 |
292.85 |
290.02 |
|
|
|
| 48-T20 |
48 |
305.58 |
302.75 |
|
|
|
| 50-T20 |
50 |
318.31 |
315.48 |
|
|
|
| 60-T20 |
60 |
381.97 |
379.14 |
|
|
|
|