配合公差 规格表
3种规格数据
配合是规定轴与孔之间尺寸关系的公差设计概念。间隙配合用于旋转/滑动部位；过盈配合用于永久固定；过渡配合用于定位。正确指定ISO 286配合组合(如H7/k6、H7/p6)才能保证装配质量。
常见问题 (FAQ)
What is the difference between H7/g6, H7/k6, and H7/p6?
H7/g6 is clearance fit (rotation/sliding), H7/k6 is transition (positioning), H7/p6 is interference (press fit). Higher deviation letters indicate tighter interference.
How do I choose a fit tolerance?
Choose clearance (g–h) where disassembly is needed, transition (j–k) for precise positioning, and interference (m–u) for permanent fixing. Also consider thermal expansion, material, and load.