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 제목 |
3. 평기어 및 헬리컬기어의 정밀도 (平歯車およびはすば歯車の精度) |
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| 분류 |
기어편람 > 기어자료편(KHK) |
작성일 |
2006.05.25 |
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| 작성자 |
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| 키워드 |
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従来から広く使用されてきた歯車精度に関する規格JIS B 1702：1976 (平歯車およびはすば歯車の精度)がISO規格に準拠することにより、大幅に変更されました。
新歯車精度規格は、JIS B 1702-01：1998 とJIS B 1702-02：1998 です。
これらの規格から抜粋した精度に関する表を記載します。
なお、新規格の精度等級の表示方法は旧規格との混同を避けるため、接頭にNを付け、N○級と呼称表示します。 |
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<新旧比較>
これら新JIS規格を旧JIS規格との比較を試みると、モジュールや基準円直径(旧JISでは基準ピッチ円直径)の区分が異なっているために、例えば、旧JIS4級が新JISでは何級に相当するかについて詳細に対比させることはできません。
おおよその目安として、新JIS精度等級＝旧JIS精度等級＋4（級）といわれますが、この目安が適用されない部分も多くあります。
旧図面の歯車精度の見直しを行う場合等で、新旧の精度等級の変換の必要が生じた際には、（社）日本歯車工業会発行の 「JGMA/TR0001 (2000): 新旧JIS歯車精度の規格値対比表」 をご参照ください。 |
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| 表1 単一ピッチ誤差 ±f p t |
基準円直径
d (mm) |
モジュール
m (mm) |
精度等級 |
| N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| F p (μm) |
| 5≦d ≦20 |
0.5≦m≦2 |
3.3 |
4.7 |
6.5 |
9.5 |
13.0 |
19.0 |
26.0 |
37.0 |
53.0 |
| 2＜m≦3.5 |
3.7 |
5.0 |
7.5 |
10.0 |
15.0 |
21.0 |
29.0 |
41.0 |
59.0 |
| 20＜d ≦50 |
0.5≦m≦2 |
3.5 |
5.0 |
7.0 |
10.0 |
14.0 |
20.0 |
28.0 |
40.0 |
56.0 |
| 2＜m≦3.5 |
3.9 |
5.5 |
7.5 |
11.0 |
15.0 |
22.0 |
31.0 |
44.0 |
62.0 |
| 3.5＜m≦6 |
4.3 |
6.0 |
8.5 |
12.0 |
17.0 |
24.0 |
34.0 |
48.0 |
68.0 |
| 6＜m≦10 |
4.9 |
7.0 |
10.0 |
14.0 |
20.0 |
28.0 |
40.0 |
56.0 |
79.0 |
| 50＜d ≦125 |
0.5≦m≦2 |
3.8 |
5.5 |
7.5 |
11.0 |
15.0 |
21.0 |
30.0 |
43.0 |
61.0 |
| 2＜m≦3.5 |
4.1 |
6.0 |
8.5 |
12.0 |
17.0 |
23.0 |
33.0 |
47.0 |
66.0 |
| 3.5＜m≦6 |
4.6 |
6.5 |
9.0 |
13.0 |
18.0 |
26.0 |
36.0 |
52.0 |
73.0 |
| 6＜m≦10 |
5.0 |
7.5 |
10.0 |
15.0 |
21.0 |
30.0 |
42.0 |
59.0 |
84.0 |
| 10＜m≦16 |
6.5 |
9.0 |
13.0 |
18.0 |
25.0 |
35.0 |
50.0 |
71.0 |
100.0 |
| 16＜m≦25 |
8.0 |
11.0 |
16.0 |
22.0 |
31.0 |
44.0 |
63.0 |
89.0 |
125.0 |
| 125＜d ≦280 |
0.5≦m≦2 |
4.2 |
6.0 |
8.5 |
12.0 |
17.0 |
24.0 |
34.0 |
48.0 |
67.0 |
| 2＜m≦3.5 |
4.6 |
6.5 |
9.0 |
13.0 |
18.0 |
26.0 |
36.0 |
51.0 |
73.0 |
| 3.5＜m≦6 |
5.0 |
7.0 |
10.0 |
14.0 |
20.0 |
28.0 |
40.0 |
56.0 |
79.0 |
| 6＜m≦10 |
5.5 |
8.0 |
11.0 |
16.0 |
23.0 |
32.0 |
45.0 |
64.0 |
90.0 |
| 10＜m≦16 |
6.5 |
9.5 |
13.0 |
19.0 |
27.0 |
38.0 |
53.0 |
75.0 |
107.0 |
| 16＜m≦25 |
8.0 |
12.0 |
16.0 |
23.0 |
33.0 |
47.0 |
66.0 |
93.0 |
132.0 |
| 280＜d ≦560 |
0.5≦m≦2 |
4.7 |
6.5 |
9.5 |
13.0 |
19.0 |
27.0 |
38.0 |
54.0 |
76.0 |
| 2＜m≦3.5 |
5.0 |
7.0 |
10.0 |
14.0 |
20.0 |
29.0 |
41.0 |
57.0 |
81.0 |
| 3.5＜m≦6 |
5.5 |
8.0 |
11.0 |
16.0 |
22.0 |
31.0 |
44.0 |
62.0 |
88.0 |
| 6＜m≦10 |
6.0 |
8.5 |
12.0 |
17.0 |
25.0 |
35.0 |
49.0 |
70.0 |
99.0 |
| 10＜m≦16 |
7.0 |
10.0 |
14.0 |
20.0 |
29.0 |
41.0 |
58.0 |
81.0 |
115.0 |
| 16＜m≦25 |
9.0 |
12.0 |
18.0 |
25.0 |
35.0 |
50.0 |
70.0 |
99.0 |
140.0 | |
| 表2 累積ピッチ誤差 F p |
基準円直径
d (mm) |
モジュール
m (mm) |
精度等級 |
| N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| F p (μm) |
| 5≦d ≦20 |
0.5≦m≦2 |
8.0 |
11.0 |
16.0 |
23.0 |
32.0 |
45.0 |
64.0 |
90.0 |
127.0 |
| 2＜m≦3.5 |
8.5 |
12.0 |
17.0 |
23.0 |
33.0 |
47.0 |
66.0 |
94.0 |
133.0 |
| 20＜d ≦50 |
0.5≦m≦2 |
10.0 |
14.0 |
20.0 |
29.0 |
41.0 |
57.0 |
81.0 |
115.0 |
162.0 |
| 2＜m≦3.5 |
10.0 |
15.0 |
21.0 |
30.0 |
42.0 |
59.0 |
84.0 |
119.0 |
168.0 |
| 3.5＜m≦6 |
11.0 |
15.0 |
22.0 |
31.0 |
44.0 |
62.0 |
87.0 |
123.0 |
174.0 |
| 6＜m≦10 |
12.0 |
16.0 |
23.0 |
33.0 |
46.0 |
65.0 |
93.0 |
131.0 |
185.0 |
| 50＜d ≦125 |
0.5≦m≦2 |
13.0 |
18.0 |
26.0 |
37.0 |
52.0 |
74.0 |
104.0 |
147.0 |
208.0 |
| 2＜m≦3.5 |
13.0 |
19.0 |
27.0 |
38.0 |
53.0 |
76.0 |
107.0 |
151.0 |
214.0 |
| 3.5＜m≦6 |
14.0 |
19.0 |
28.0 |
39.0 |
55.0 |
78.0 |
110.0 |
156.0 |
220.0 |
| 6＜m≦10 |
14.0 |
20.0 |
29.0 |
41.0 |
58.0 |
82.0 |
116.0 |
164.0 |
231.0 |
| 10＜m≦16 |
15.0 |
22.0 |
31.0 |
44.0 |
62.0 |
88.0 |
124.0 |
175.0 |
248.0 |
| 16＜m≦25 |
17.0 |
24.0 |
34.0 |
48.0 |
68.0 |
96.0 |
136.0 |
193.0 |
273.0 |
| 125＜d ≦280 |
0.5≦m≦2 |
17.0 |
24.0 |
35.0 |
49.0 |
69.0 |
98.0 |
138.0 |
195.0 |
276.0 |
| 2＜m≦3.5 |
18.0 |
25.0 |
35.0 |
50.0 |
70.0 |
100.0 |
141.0 |
199.0 |
282.0 |
| 3.5＜m≦6 |
18.0 |
25.0 |
36.0 |
51.0 |
72.0 |
102.0 |
144.0 |
204.0 |
288.0 |
| 6＜m≦10 |
19.0 |
26.0 |
37.0 |
53.0 |
75.0 |
106.0 |
149.0 |
211.0 |
299.0 |
| 10＜m≦16 |
20.0 |
28.0 |
39.0 |
56.0 |
79.0 |
112.0 |
158.0 |
223.0 |
316.0 |
| 16＜m≦25 |
21.0 |
30.0 |
43.0 |
60.0 |
85.0 |
120.0 |
170.0 |
241.0 |
341.0 |
| 280＜d ≦560 |
0.5≦m≦2 |
23.0 |
32.0 |
46.0 |
64.0 |
91.0 |
129.0 |
182.0 |
257.0 |
364.0 |
| 2＜m≦3.5 |
23.0 |
33.0 |
46.0 |
65.0 |
92.0 |
131.0 |
185.0 |
261.0 |
370.0 |
| 3.5＜m≦6 |
24.0 |
33.0 |
47.0 |
66.0 |
94.0 |
133.0 |
188.0 |
266.0 |
376.0 |
| 6＜m≦10 |
24.0 |
34.0 |
48.0 |
68.0 |
97.0 |
137.0 |
193.0 |
274.0 |
387.0 |
| 10＜m≦16 |
25.0 |
36.0 |
50.0 |
71.0 |
101.0 |
143.0 |
202.0 |
285.0 |
404.0 |
| 16＜m≦25 |
27.0 |
38.0 |
54.0 |
76.0 |
107.0 |
151.0 |
214.0 |
303.0 |
428.0 | |
| 表3 全歯形誤差 F a |
基準円直径
d (mm) |
モジュール
m (mm) |
精度等級 |
| N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| F p (μm) |
| 5≦d ≦20 |
0.5≦m≦2 |
3.2 |
4.6 |
6.5 |
9.0 |
13.0 |
18.0 |
26.0 |
37.0 |
52.0 |
| 2＜m≦3.5 |
4.7 |
6.5 |
9.5 |
13.0 |
19.0 |
26.0 |
37.0 |
53.0 |
75.0 |
| 20＜d ≦50 |
0.5≦m≦2 |
3.6 |
5.0 |
7.5 |
10.0 |
15.0 |
21.0 |
29.0 |
41.0 |
58.0 |
| 2＜m≦3.5 |
5.0 |
7.0 |
10.0 |
14.0 |
20.0 |
29.0 |
40.0 |
57.0 |
81.0 |
| 3.5＜m≦6 |
6.0 |
9.0 |
12.0 |
18.0 |
25.0 |
35.0 |
50.0 |
70.0 |
99.0 |
| 6＜m≦10 |
7.5 |
11.0 |
15.0 |
22.0 |
31.0 |
43.0 |
61.0 |
87.0 |
123.0 |
| 50＜d ≦125 |
0.5≦m≦2 |
4.1 |
6.0 |
8.5 |
12.0 |
17.0 |
23.0 |
33.0 |
47.0 |
66.0 |
| 2＜m≦3.5 |
5.5 |
8.0 |
11.0 |
16.0 |
22.0 |
31.0 |
44.0 |
63.0 |
89.0 |
| 3.5＜m≦6 |
6.5 |
9.5 |
13.0 |
19.0 |
27.0 |
38.0 |
54.0 |
76.0 |
108.0 |
| 6＜m≦10 |
8.0 |
12.0 |
16.0 |
23.0 |
33.0 |
46.0 |
65.0 |
92.0 |
131.0 |
| 10＜m≦16 |
10.0 |
14.0 |
20.0 |
28.0 |
40.0 |
56.0 |
79.0 |
112.0 |
159.0 |
| 16＜m≦25 |
12.0 |
17.0 |
24.0 |
34.0 |
48.0 |
68.0 |
96.0 |
136.0 |
192.0 |
| 125＜d ≦230 |
0.5≦m≦2 |
4.9 |
7.0 |
10.0 |
14.0 |
20.0 |
28.0 |
39.0 |
55.0 |
78.0 |
| 2＜m≦3.5 |
6.5 |
9.0 |
13.0 |
18.0 |
25.0 |
36.0 |
50.0 |
71.0 |
101.0 |
| 3.5＜m≦6 |
7.5 |
11.0 |
15.0 |
21.0 |
30.0 |
42.0 |
60.0 |
84.0 |
119.0 |
| 6＜m≦10 |
9.0 |
13.0 |
18.0 |
25.0 |
36.0 |
50.0 |
71.0 |
101.0 |
143.0 |
| 10＜m≦16 |
11.0 |
15.0 |
21.0 |
30.0 |
43.0 |
60.0 |
85.0 |
121.0 |
171.0 |
| 16＜m≦25 |
13.0 |
18.0 |
25.0 |
36.0 |
51.0 |
72.0 |
102.0 |
144.0 |
204.0 |
| 280＜d ≦560 |
0.5≦m≦2 |
6.0 |
8.5 |
12.0 |
17.0 |
23.0 |
33.0 |
47.0 |
66.0 |
94.0 |
| 2＜m≦3.5 |
7.5 |
10.0 |
15.0 |
21.0 |
29.0 |
41.0 |
58.0 |
82.0 |
116.0 |
| 3.5＜m≦6 |
8.5 |
12.0 |
17.0 |
24.0 |
34.0 |
48.0 |
67.0 |
95.0 |
135.0 |
| 6＜m≦10 |
10.0 |
14.0 |
20.0 |
28.0 |
40.0 |
56.0 |
79.0 |
112.0 |
158.0 |
| 10＜m≦16 |
12.0 |
16.0 |
23.0 |
33.0 |
47.0 |
66.0 |
93.0 |
132.0 |
186.0 |
| 16＜m≦25 |
14.0 |
19.0 |
27.0 |
39.0 |
55.0 |
78.0 |
110.0 |
155.0 |
219.0 | |
| 表4 全歯すじ誤差 Fβ |
基準円直径
d (mm) |
歯 幅
b (mm) |
精度等級 |
| N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| F p (μm) |
| 5≦d ≦20 |
4≦b≦10 |
4.3 |
6.0 |
8.5 |
12.0 |
17.0 |
24.0 |
35.0 |
49.0 |
69.0 |
| 10＜b≦20 |
4.9 |
7.0 |
9.5 |
14.0 |
19.0 |
28.0 |
39.0 |
55.0 |
78.0 |
| 20＜b≦40 |
5.5 |
8.0 |
11.0 |
16.0 |
22.0 |
31.0 |
45.0 |
63.0 |
89.0 |
| 40＜b≦80 |
6.5 |
9.5 |
13.0 |
19.0 |
26.0 |
37.0 |
52.0 |
74.0 |
105.0 |
| 20＜d ≦50 |
4≦b≦10 |
4.5 |
6.5 |
9.0 |
13.0 |
18.0 |
25.0 |
36.0 |
51.0 |
72.0 |
| 10＜b≦20 |
5.0 |
7.0 |
10.0 |
14.0 |
20.0 |
29.0 |
40.0 |
57.0 |
81.0 |
| 20＜b≦40 |
5.5 |
8.0 |
11.0 |
16.0 |
23.0 |
32.0 |
46.0 |
65.0 |
92.0 |
| 40＜b≦80 |
6.5 |
9.5 |
13.0 |
19.0 |
27.0 |
38.0 |
54.0 |
76.0 |
107.0 |
| 80＜b≦160 |
8.0 |
11.0 |
16.0 |
23.0 |
32.0 |
46.0 |
65.0 |
92.0 |
130.0 |
| 50＜d ≦125 |
4≦b≦10 |
4.7 |
6.5 |
9.5 |
13.0 |
19.0 |
27.0 |
38.0 |
53.0 |
76.0 |
| 10＜b≦20 |
5.5 |
7.5 |
11.0 |
15.0 |
21.0 |
30.0 |
42.0 |
60.0 |
84.0 |
| 20＜b≦40 |
6.0 |
8.5 |
12.0 |
17.0 |
24.0 |
34.0 |
48.0 |
68.0 |
95.0 |
| 40＜b≦80 |
7.0 |
10.0 |
14.0 |
20.0 |
28.0 |
39.0 |
56.0 |
79.0 |
111.0 |
| 80＜b≦160 |
8.5 |
12.0 |
17.0 |
24.0 |
33.0 |
47.0 |
67.0 |
94.0 |
133.0 |
| 160＜b≦250 |
10.0 |
14.0 |
20.0 |
28.0 |
40.0 |
56.0 |
79.0 |
112.0 |
158.0 |
| 250＜b≦400 |
12.0 |
16.0 |
23.0 |
33.0 |
46.0 |
65.0 |
92.0 |
130.0 |
184.0 |
| 125＜d ≦280 |
4≦b≦10 |
5.0 |
7.0 |
10.0 |
14.0 |
20.0 |
29.0 |
40.0 |
57.0 |
81.0 |
| 10＜b≦20 |
5.5 |
8.0 |
11.0 |
16.0 |
22.0 |
32.0 |
45.0 |
63.0 |
90.0 |
| 20＜b≦40 |
6.5 |
9.0 |
13.0 |
18.0 |
25.0 |
36.0 |
50.0 |
71.0 |
101.0 |
| 40＜b≦80 |
7.5 |
10.0 |
15.0 |
21.0 |
29.0 |
41.0 |
58.0 |
82.0 |
117.0 |
| 80＜b≦160 |
8.5 |
12.0 |
17.0 |
25.0 |
35.0 |
49.0 |
69.0 |
98.0 |
139.0 |
| 160＜b≦250 |
10.0 |
14.0 |
20.0 |
29.0 |
41.0 |
58.0 |
82.0 |
116.0 |
164.0 |
| 250＜b≦400 |
12.0 |
17.0 |
24.0 |
34.0 |
47.0 |
67.0 |
95.0 |
134.0 |
190.0 |
| 280＜d ≦560 |
10≦b≦20 |
6.0 |
8.5 |
12.0 |
17.0 |
24.0 |
34.0 |
48.0 |
68.0 |
97.0 |
| 20＜b≦40 |
6.5 |
9.5 |
13.0 |
19.0 |
27.0 |
38.0 |
54.0 |
76.0 |
108.0 |
| 40＜b≦80 |
7.5 |
11.0 |
15.0 |
22.0 |
31.0 |
44.0 |
62.0 |
87.0 |
124.0 |
| 80＜b≦160 |
9.0 |
13.0 |
18.0 |
26.0 |
36.0 |
52.0 |
73.0 |
103.0 |
146.0 |
| 160＜b≦250 |
11.0 |
15.0 |
21.0 |
30.0 |
43.0 |
60.0 |
85.0 |
121.0 |
171.0 |
| 250＜b≦400 |
12.0 |
17.0 |
25.0 |
35.0 |
49.0 |
70.0 |
98.0 |
139.0 |
197.0 | |
| 表5 両歯面全かみ合い許容値 F i" B 1702-2 |
基準円直径
d (mm) |
歯直角
モジュール
m n (mm) |
精度等級 |
| N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| F i" (μm) |
| 5≦d ≦20 |
0.2≦m n≦0.5 |
7.5 |
11 |
15 |
21 |
30 |
42 |
60 |
85 |
120 |
| 0.5≦m n≦0.8 |
8.0 |
12 |
16 |
23 |
33 |
46 |
66 |
93 |
131 |
| 0.8≦m n≦1.0 |
9.0 |
12 |
18 |
25 |
35 |
50 |
70 |
100 |
141 |
| 1.0≦m n≦1.5 |
10 |
14 |
19 |
27 |
38 |
54 |
76 |
108 |
153 |
| 1.5≦m n≦2.5 |
11 |
16 |
22 |
32 |
45 |
63 |
89 |
126 |
179 |
| 2.5≦m n≦4.0 |
14 |
20 |
28 |
39 |
56 |
79 |
112 |
158 |
223 |
| 20＜d ≦50 |
0.2≦m n≦0.5 |
9.0 |
13 |
19 |
26 |
37 |
52 |
74 |
105 |
148 |
| 0.5≦m n≦0.8 |
10 |
14 |
20 |
28 |
40 |
56 |
80 |
113 |
160 |
| 0.8≦m n≦1.0 |
11 |
15 |
21 |
30 |
42 |
60 |
85 |
120 |
169 |
| 1.0≦m n≦1.5 |
11 |
16 |
23 |
32 |
45 |
64 |
91 |
128 |
181 |
| 1.5≦m n≦2.5 |
13 |
18 |
26 |
37 |
52 |
73 |
103 |
146 |
207 |
| 2.5≦m n≦4.0 |
16 |
22 |
31 |
44 |
63 |
89 |
126 |
178 |
251 |
| 4.0≦m n≦6.0 |
20 |
28 |
39 |
56 |
79 |
111 |
157 |
222 |
314 |
| 6.0≦m n≦10 |
26 |
37 |
52 |
74 |
104 |
147 |
209 |
295 |
417 |
| 50＜d ≦125 |
0.2≦m n≦0.5 |
12 |
16 |
23 |
33 |
46 |
66 |
93 |
131 |
185 |
| 0.5≦m n≦0.8 |
12 |
17 |
25 |
35 |
49 |
70 |
98 |
139 |
197 |
| 0.8≦m n≦1.0 |
13 |
18 |
26 |
36 |
52 |
73 |
103 |
146 |
206 |
| 1.0≦m n≦1.5 |
14 |
19 |
27 |
39 |
55 |
77 |
109 |
154 |
218 |
| 1.5≦m n≦2.5 |
15 |
22 |
31 |
43 |
61 |
86 |
122 |
173 |
244 |
| 2.5≦m n≦4.0 |
18 |
25 |
36 |
51 |
72 |
102 |
144 |
204 |
288 |
| 4.0≦m n≦6.0 |
22 |
31 |
44 |
62 |
88 |
124 |
176 |
248 |
351 |
| 6.0≦m n≦10 |
28 |
40 |
57 |
80 |
114 |
161 |
227 |
321 |
454 |
| 125＜d ≦280 |
0.2≦m n≦0.5 |
15 |
21 |
30 |
42 |
60 |
85 |
120 |
170 |
240 |
| 0.5≦m n≦0.8 |
16 |
22 |
31 |
44 |
63 |
89 |
126 |
178 |
252 |
| 0.8≦m n≦1.0 |
16 |
23 |
33 |
46 |
65 |
92 |
131 |
185 |
261 |
| 1.0≦m n≦1.5 |
17 |
24 |
34 |
48 |
68 |
97 |
137 |
193 |
273 |
| 1.5≦m n≦2.5 |
19 |
26 |
37 |
53 |
75 |
106 |
149 |
211 |
299 |
| 2.5≦m n≦4.0 |
21 |
30 |
43 |
61 |
86 |
121 |
172 |
243 |
343 |
| 4.0≦m n≦6.0 |
25 |
36 |
51 |
72 |
102 |
144 |
203 |
287 |
406 |
| 6.0≦m n≦10 |
32 |
45 |
64 |
90 |
127 |
180 |
255 |
360 |
509 |
| 280＜d ≦560 |
0.2≦m n≦0.5 |
19 |
28 |
39 |
55 |
78 |
110 |
156 |
220 |
311 |
| 0.5≦m n≦0.8 |
20 |
29 |
40 |
57 |
81 |
114 |
161 |
228 |
323 |
| 0.8≦m n≦1.0 |
21 |
29 |
42 |
59 |
83 |
117 |
166 |
235 |
332 |
| 1.0≦m n≦1.5 |
22 |
30 |
43 |
61 |
86 |
122 |
172 |
243 |
344 |
| 1.5≦m n≦2.5 |
23 |
33 |
46 |
65 |
92 |
131 |
185 |
262 |
370 |
| 2.5≦m n≦4.0 |
26 |
37 |
52 |
73 |
104 |
146 |
207 |
293 |
414 |
| 4.0≦m n≦6.0 |
30 |
42 |
60 |
84 |
119 |
169 |
239 |
337 |
477 |
| 6.0≦m n≦10 |
36 |
51 |
73 |
103 |
145 |
205 |
290 |
410 |
580 |
| 560＜d ≦1000 |
0.2≦m n≦0.5 |
25 |
35 |
50 |
70 |
99 |
140 |
198 |
280 |
396 |
| 0.5≦m n≦0.8 |
25 |
36 |
51 |
72 |
102 |
144 |
204 |
288 |
408 |
| 0.8≦m n≦1.0 |
26 |
37 |
52 |
74 |
104 |
148 |
209 |
295 |
417 |
| 1.0≦m n≦1.5 |
27 |
38 |
54 |
76 |
107 |
152 |
215 |
304 |
429 |
| 1.5≦m n≦2.5 |
28 |
40 |
57 |
80 |
114 |
161 |
228 |
322 |
455 |
| 2.5≦m n≦4.0 |
31 |
44 |
62 |
88 |
125 |
177 |
250 |
353 |
499 |
| 4.0≦m n≦6.0 |
35 |
50 |
70 |
99 |
141 |
199 |
281 |
398 |
562 |
| 6.0≦m n≦10 |
42 |
59 |
83 |
118 |
166 |
235 |
333 |
471 |
665 | |
|
JIS B 1702-02：1998 の付属書B (規定ではなく参考) に掲載されている
歯溝の振れ許容値を表6に示します。 |
 |
| 表6 歯溝の振れ許容値 Fr (μm) |
基準円直径
d (mm) |
歯直角
モジュール
m n |
精度等級 |
| ＞ |
=to |
＞ |
=to |
N4 |
N5 |
N6 |
N7 |
N8 |
N9 |
N10 |
N11 |
N12 |
| 5 |
20 |
0.5 |
2.0 |
6.5 |
9.0 |
13 |
18 |
25 |
36 |
51 |
72 |
102 |
| 2.0 |
3.5 |
6.5 |
9.5 |
13 |
19 |
27 |
38 |
53 |
75 |
106 |
| 20 |
50 |
0.5 |
2.0 |
8.0 |
11 |
16 |
23 |
32 |
46 |
65 |
92 |
130 |
| 2.0 |
3.5 |
8.5 |
12 |
17 |
24 |
34 |
47 |
67 |
95 |
134 |
| 3.5 |
6.0 |
8.5 |
12 |
17 |
25 |
35 |
49 |
70 |
99 |
139 |
| 6.0 |
10 |
9.5 |
13 |
19 |
26 |
37 |
52 |
74 |
105 |
148 |
| 50 |
125 |
0.5 |
2.0 |
10 |
15 |
21 |
29 |
42 |
59 |
83 |
118 |
167 |
| 2.0 |
3.5 |
11 |
15 |
21 |
30 |
43 |
61 |
86 |
121 |
171 |
| 3.5 |
6.0 |
11 |
16 |
22 |
31 |
44 |
62 |
88 |
125 |
176 |
| 6.0 |
10 |
12 |
16 |
23 |
33 |
46 |
65 |
92 |
131 |
185 |
| 10 |
16 |
12 |
18 |
25 |
35 |
50 |
70 |
99 |
140 |
198 |
| 16 |
25 |
14 |
19 |
27 |
39 |
55 |
77 |
109 |
154 |
218 |
| 125 |
280 |
0.5 |
2.0 |
14 |
20 |
28 |
39 |
55 |
78 |
110 |
156 |
221 |
| 2.0 |
3.5 |
14 |
20 |
28 |
40 |
56 |
80 |
113 |
159 |
225 |
| 3.5 |
6.0 |
14 |
20 |
29 |
41 |
58 |
82 |
115 |
163 |
231 |
| 6.0 |
10 |
15 |
21 |
30 |
42 |
60 |
85 |
120 |
169 |
239 |
| 10 |
16 |
16 |
22 |
32 |
45 |
63 |
89 |
126 |
179 |
252 |
| 16 |
25 |
17 |
24 |
34 |
48 |
68 |
96 |
136 |
193 |
272 |
| 280 |
560 |
0.5 |
2.0 |
18 |
26 |
36 |
51 |
73 |
103 |
146 |
206 |
291 |
| 2.0 |
3.5 |
18 |
26 |
37 |
52 |
74 |
105 |
148 |
209 |
296 |
| 3.5 |
6.0 |
19 |
27 |
38 |
53 |
75 |
106 |
150 |
213 |
301 |
| 6.0 |
10 |
19 |
27 |
39 |
55 |
77 |
109 |
155 |
219 |
310 |
| 10 |
16 |
20 |
29 |
40 |
57 |
81 |
114 |
161 |
228 |
323 |
| 16 |
25 |
21 |
30 |
43 |
61 |
86 |
121 |
171 |
242 |
343 | | |
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