|
蜗杆、蜗轮的公差及极限偏差 μm |
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|
名称 |
代号 |
中心距/mm |
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|
≥80~160 |
＞160~315 |
＞315~630 |
＞630~1250 |
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|
精度等级 |
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|
6 |
7 |
8 |
6 |
7 |
8 |
6 |
7 |
8 |
6 |
7 |
8 |
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|
蜗杆 |
蜗杆圆周齿距累积公差 |
Fp1 |
20 |
30 |
40 |
30 |
40 |
50 |
40 |
60 |
70 |
75 |
90 |
110 |
|
|
蜗杆圆周齿距极限偏差 |
±fp1 |
±10 |
±15 |
±20 |
±14 |
±20 |
±25 |
±20 |
±30 |
±35 |
±30 |
±40 |
±45 |
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|
蜗杆分度公差 |
z2/z1≠整数 |
fz1 |
10 |
15 |
20 |
14 |
20 |
25 |
20 |
30 |
35 |
30 |
40 |
45 |
|
|
z2/z1＝整数 |
25 |
37 |
50 |
35 |
50 |
62 |
50 |
75 |
87 |
75 |
100 |
112 |
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|
蜗杆螺旋线误差的公差 |
fh1 |
28 |
40 |
— |
36 |
50 |
— |
45 |
63 |
— |
63 |
90 |
— |
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|
蜗杆法向弦齿厚公差 |
双向回转 |
Ts1 |
35 |
50 |
75 |
60 |
100 |
150 |
90 |
140 |
200 |
140 |
200 |
250 |
|
|
单向回转 |
70 |
100 |
150 |
120 |
200 |
300 |
180 |
280 |
400 |
280 |
350 |
450 |
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|
蜗轮 |
蜗轮齿圈径向跳动公差 |
Fr2 |
15 |
20 |
30 |
20 |
30 |
40 |
25 |
40 |
60 |
35 |
55 |
80 |
|
|
蜗轮齿距累积公差 |
Fp2 |
15 |
20 |
25 |
20 |
30 |
45 |
30 |
40 |
55 |
40 |
60 |
80 |
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|
蜗轮齿距极限偏差 |
±fp2 |
±13 |
±18 |
±25 |
±18 |
±25 |
±36 |
±20 |
±28 |
±40 |
±26 |
±36 |
±50 |
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|
蜗轮法向弦齿厚公差 |
Ts2 |
75 |
100 |
150 |
100 |
150 |
2 00 |
150 |
200 |
280 |
220 |
300 |
400 |
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