壓力配合曲面品質
影響接觸曲面的曲面平滑度大小和有效干涉的大小。不對非常平滑的曲面套用曲面平滑度。對於這些曲面，有效干涉等於最小干涉和最大負載容量。
採用特定切削方法進行的曲面質量審核。
平均粗糙度，Ra - 微米 [μm] (微英吋 [μin])
| | 50 | 25 | 12.5 | 6.3 | 3.2 | 1.6 | 0.8 | 0.4 | 0.2 | 0.1 | 0.05 | 0.025 | 0.0125 |
| | (2000) | (1000) | (500) | (250) | (125) | (63) | (32) | (16) | (8) | (4) | (2) | (1) | (0.5) |
火焰切割 | - | + | - | | | | | | | | | | |
粗加工 | - | + | + | - | | | | | | | | | |
鋸切 | - | + | + | + | + | - | | | | | | | |
切削、造型 | | - | + | + | + | - | - | | | | | | |
鑽孔 | | | - | + | + | - | | | | | | | |
化學蝕刻 | | | - | + | + | - | | | | | | | |
放電 | | | - | +/- | + | - | | | | | | | |
銑 | | - | - | + | + | + | - | - | | | | | |
拉削 | | | | - | + | + | - | | | | | | |
鉸孔 | | | | - | + | + | - | | | | | | |
電子束 | | | | + | + | + | - | - | | | | | |
雷射 | | | | + | + | + | - | - | | | | | |
電化學 | | | - | - | + | + | + | + | - | - | | | |
鏜孔、車削 | | - | - | + | + | + | + | - | - | - | - | | |
筒體磨光 | | | | | - | - | + | + | - | - | | | |
電解研磨 | | | | | | | -/+ | + | - | | | | |
滾柱滾光 | | | | | | | - | + | - | | | | |
研磨 | | | | - | - | + | + | + | + | - | - | | |
珩磨 | | | | | | - | + | + | + | - | - | | |
電修飾 | | | | | | - | + | + | + | - | - | - | |
修飾 | | | | | | | - | + | + | - | - | - | |
研磨 | | | | | | | - | + | + | - | - | - | |
超精加工 | | | | | | | - | - | + | + | + | - | |
砂型鑄造 | - | + | - | | | | | | | | | | |
熱軋 | - | + | - | | | | | | | | | | |
鍛造 | | - | + | + | - | | | | | | | | |
硬模鑄造 | | | | - | + | - | | | | | | | |
熔模鑄造 | | | | - | + | - | - | | | | | | |
擠壓 | | | - | - | + | + | - | | | | | | |
冷軋、退火 | | | | - | - | + | + | - | | | | | |
壓鑄 | | | | | - | + | - | | | | | | |
鍵：
+：平均應用
-：較少應用
顯示的範圍是所列程式的典型範圍。
在特殊的條件下，可以採用較高或較低的值。