销 规格表
5种规格数据
销是用于两个零件间定位或固定的小型紧固件。平行销用于精密定位；弹簧销靠弹性恢复力防脱；锥销靠楔紧效果提供强固定。开口销(销钉)用于螺母防脱，不可重复使用。
常见问题 (FAQ)
How do I choose between a dowel pin and a spring pin?
Use dowel pins (knock pins) for precise positioning; use spring pins for simple securing with frequent assembly/disassembly. Dowel pins need h6/h8 tolerance holes; spring pins press into standard drilled holes.
What is the difference between a groove pin and a spring pin?
Groove pins hold via elastic deformation of external grooves; their solid section gives high shear strength. Spring pins have a C-shaped cross-section with lower insertion force and easier removal.
How do you install a split (cotter) pin?
Insert through a hole in the nut or bolt, then bend both legs to prevent withdrawal. Used in safety-critical joints with castle nuts or clevis pins. Reuse is not recommended.