標準孔徑鍵槽 Keyways 加工規格
| 標準孔徑 D | 鍵槽 Keyways | 鍵 - 尺寸 | |||
|---|---|---|---|---|---|
| b | t | b × h | |||
| 基準寸法 | 容許差 | 基準寸法 | 容許差 | ||
| 10 | 3 | ±0.015 | 1.5 | +0.1 1 | 3 × 3 |
| 12 | 4 | ±0.015 | 1.8 | +0.1 1 | 4 × 4 |
| 14~18 | 5 | ±0.015 | 2.3 | +0.1 1 | 5 × 5 |
| 19~22 | 6 | ±0.015 | 2.8 | +0.1 1 | 6 × 6 |
| 24~30 | 8 | ±0.030 | 3.3 | +0.2 1 | 8 × 7 |
| 30~38 | 10 | ±0.030 | 3.3 | +0.2 1 | 10 × 8 |
| 38~44 | 12 | ±0.030 | 3.3 | +0.2 1 | 12 × 8 |
| 44~50 | 14 | ±0.043 | 3.8 | +0.3 1 | 14 × 9 |
| 50~58 | 16 | ±0.043 | 4.3 | +0.3 1 | 16 × 10 |
| 58~65 | 18 | ±0.043 | 4.4 | +0.3 1 | 18 × 11 |