标準規定了公稱直徑4~260mm光學儀器特種細牙螺紋的直徑與螺距系列、基本尺寸、公差及配合、偏差表。螺紋代号“TM”。
引用标準:GB/T 192-1981 普通螺紋基本牙型、GB/T 193-1981 普通螺紋直徑與螺距系列、GB 197-1981 普通螺紋公差與配合。
公稱直徑 D,d | 螺距 | 旋台長度,mm | ||||
S | N | L | ||||
> | ≤ | ≤ | > | ≤ | > | |
2.8 | 5.6 | 0.35 | 1 | 1 | 3 | 3 |
5.6 | 11.2 | 0.35 | 1.1 | 1.1 | 3.3 | 3.3 |
11.2 | 22.4 | 0.5 | 1.8 | 1.8 | 5.4 | 5.4 |
11.2 | 22.4 | 0.75 | 2.7 | 2.7 | 8.1 | 8.1 |
22.4 | 45 | 0.5 | 2.1 | 2.1 | 6.2 | 6.2 |
22.4 | 45 | 0.75 | 3.1 | 3.1 | 9.4 | 9.4 |
22.4 | 45 | 1 | 4 | 4 | 12 | 12 |
45 | 90 | 0.5 | 2.4 | 2.4 | 7.1 | 7.1 |
45 | 90 | 0.75 | 3.6 | 3.6 | 11 | 11 |
45 | 90 | 1 | 4.8 | 4.8 | 14 | 14 |
90 | 180 | 0.75 | 4.1 | 4.1 | 12 | 12 |
90 | 180 | 1 | 5.5 | 5.5 | 16 | 16 |
90 | 180 | 1.5 | 8.3 | 8.3 | 25 | 25 |
180 | 355 | 1.5 | 9.5 | 9.5 | 28 | 28 |
準确度 | 内螺紋選用公差帶 | 外螺紋選用公差帶 | |||||||
公差帶位置 H | 公差帶位置 g | 公差帶位置 h | |||||||
S | N | L | S | N | L | S | N | L | |
精密 | (4H) | 4H5H |
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| 4h |
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中等 | (5H) | 6H | (7H) |
| 6g |
| (5h6h) | 6h | (7h6h) |
直徑分段 | 螺距 mm | 内螺紋, μm | 外螺紋, μm |
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公 | 中徑 D2 | 小徑D1 | 公 | 中徑 d2 | 小徑d1 |
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ES | EI | ES | EI | es | ei | es | ei | ||||||
> | ≤ |
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2.8 | 5.6 | 0.35 | 4H | +56 | 0 | +63 | 0 | 4h | 0 | -42 | 0 | -53 |
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4H5H | +56 | 0 | +80 | 0 | 5h6h | 0 | -53 | 0 | -85 |
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5H | +71 | 0 | +80 | 0 | 6h | 0 | -67 | 0 | -85 |
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| 7h6h | 0 | -85 | 0 | -85 |
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| 6g | -19 | -86 | -19 | -104 |
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5.6 | 11.2 | 4H | +60 | 0 | +63 | 0 | 4h | 0 | -45 | 0 | -53 |
| |
4H5H | +60 | 0 | +80 | 0 | 5h6h | 0 | -56 | 0 | -85 |
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5H | +75 | 0 | +80 | 0 | 6h | 0 | -71 | 0 | -85 |
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| 6g | -19 | -90 | -19 | -104 |
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11.2 | 22.4 | 0.5 | 4H | +75 | 0 | +90 | 0 | 4h | 0 | -56 | 0 | -67 |
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4H5H | +75 | 0 | +112 | 0 | 5h6h | 0 | -71 | 0 | -106 |
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5H | +95 | 0 | +112 | 0 | 6h | 0 | -90 | 0 | -106 |
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6H | +118 | 0 | +140 | 0 | 6g | -20 | -110 | -20 | -126 |
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7H | +150 | 0 | +180 | 0 |
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0.75 | 4H | +90 | 0 | +118 | 0 | 4h | 0 | -67 | 0 | -90 |
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4H5H | +90 | 0 | +150 | 0 | 5h6h | 0 | -85 | 0 | -140 |
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5H | +112 | 0 | +150 | 0 | 6h | 0 | -106 | 0 | -140 |
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6H | +140 | 0 | +190 | 0 | 6g | -22 | -128 | -22 | -162 |
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7H | +180 | 0 | +236 | 0 | 7h6h | 0 | -132 | 0 | -140 |
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22.4 | 45 | 0.5 | 4H | +80 | 0 | +90 | 0 | 4h | 0 | -60 | 0 | -67 |
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4H5H | +80 | 0 | +112 | 0 | 5h6h | 0 | -75 | 0 | -106 |
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5H | +100 | 0 | +112 | 0 | 6h | 0 | -95 | 0 | -106 |
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6H | +125 | 0 | +140 | 0 | 6g | -20 | -115 | -20 | -126 |
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7H | +160 | 0 | +180 | 0 |
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22.4 | 45 | 0.75 | 4H | +95 | 0 | +118 | 0 | 4h | 0 | -71 | 0 | -90 |
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4H5H | +95 | 0 | +150 | 0 | 5h6h | 0 | -90 | 0 | -140 |
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5H | +118 | 0 | +150 | 0 | 6h | 0 | -112 | 0 | -140 |
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6H | +150 | 0 | +190 | 0 | 6g | -22 | -134 | -22 | -162 |
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7H | +190 | 0 | +236 | 0 | 7h6h | 0 | -140 | 0 | -140 |
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22.4 | 45 | 1 | 4H | +106 | 0 | +150 | 0 | 4h | 0 | -80 | 0 | -112 |
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4H5H | +106 | 0 | +190 | 0 | 5h6h | 0 | -100 | 0 | -180 |
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5H | +132 | 0 | +190 | 0 | 6h | 0 | -125 | 0 | -180 |
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6H | +170 | 0 | +236 | 0 | 6g | -26 | -151 | -26 | -206 |
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7H | +212 | 0 | +300 | 0 | 7h6h | 0 | -160 | 0 | -180 |
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| 0.5 | 4H | +90 | 0 | +90 | 0 | 4h | 0 | -67 | 0 | -67 |
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4H5H | +90 | 0 | +112 | 0 | 5h6h | 0 | -85 | 0 | -106 |
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5H | +112 | 0 | +112 | 0 | 6h | 0 | -106 | 0 | -106 |
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| 6g | -20 | -126 | -20 | -126 |
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45 | 90 | 0.75 | 4H | +100 | 0 | +118 | 0 | 4h | 0 | -75 | 0 | -90 |
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4H5H | +100 | 0 | +150 | 0 | 6h6h | 0 | -95 | 0 | -140 |
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5H | +125 | 0 | +150 | 0 | 6h | 0 | -118 | 0 | -140 |
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6H | +160 | 0 | +190 | 0 | 6g | -22 | -140 | -22 | -162 |
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7H | +200 | 0 | +236 | 0 |
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1 | 4H | +118 | 0 | +150 | 0 | 4h | 0 | -90 | 0 | -112 |
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4H5H | +118 | 0 | +190 | 0 | 5h6h | 0 | -112 | 0 | -180 |
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5H | +150 | 0 | +190 | 0 | 6g | 0 | -140 | 0 | -180 |
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6H | +180 | 0 | +236 | 0 | 6g | -26 | -166 | -26 | -206 |
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7H | +236 | 0 | +300 | 0 | 7h6h | 0 | -180 | 0 | -180 |
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90 | 180 | 0.75 | 4H | +112 | 0 | +118 | 0 | 4h | 0 | -85 | 0 | -90 |
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4H5H | +112 | 0 | +150 | 0 | 5h6h | 0 | -106 | 0 | -140 |
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5H | +140 | 0 | +150 | 0 | 6h | 0 | -132 | 0 | -140 |
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6H | +180 | 0 | +190 | 0 | 6g | -22 | -154 | -22 | -162 |
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7H | +210 | 0 | +236 | 0 |
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1 | 4H | +125 | 0 | +150 | 0 | 4h | 0 | -95 | 0 | -112 |
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4H5H | +125 | 0 | +190 | 0 | 5h6h | 0 | -188 | 0 | -180 |
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5H | +160 | 0 | +190 | 0 | 6h | 0 | -150 | 0 | -180 |
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6H | +200 | 0 | +236 | 0 | 6g | -26 | -176 | -26 | -206 |
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7H | +260 | 0 | +300 | 0 |
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1.5 | 4H | +140 | 0 | +190 | 0 | 4h | 0 | -106 | 0 | -150 |
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4H5H | +140 | 0 | +236 | 0 | 5h6h | 0 | -132 | 0 | -236 |
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5H | +180 | 0 | +236 | 0 | 6h | 0 | -170 | 0 | -236 |
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6H | +224 | 0 | +300 | 0 | 6g | -32 | -220 | -32 | -268 |
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7H | +280 | 0 | +375 | 0 | 7h6h | 0 | -212 | 0 | -236 |
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180 | 355 | 4H | +150 | 0 | +190 | 0 | 4h | 0 | -112 | 0 | -150 |
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4H5H | +150 | 0 | +236 | 0 | 5h6h | 0 | -140 | 0 | -236 |
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5H | +190 | 0 | +236 | 0 | 6h | 0 | -180 | 0 | -236 |
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6H | +236 | 0 | +300 | 0 | 6g | -32 | -212 | -32 | -268 |
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7H | +295 | 0 | +375 | 0 | 7h6h | 0 | -224 | 0 | -236 |
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