O形圈槽 规格表
2种规格数据
O型圈槽尺寸表规定了槽的宽度(w)和深度(h)，使O型圈达到规定的压缩率。运动用槽压缩率8~16%使摩擦最小化，固定用槽15~30%确保密封可靠性。加工时须遵守角部R和表面粗糙度要求。
常见问题 (FAQ)
What is the difference between dynamic groove and static groove dimensions?
Dynamic grooves are for O-rings in sliding contact (pistons, rods). Static grooves are for non-moving seals (flanges, covers). Groove dimensions (width, depth) and compression ratios differ.
What is the recommended surface roughness for O-ring grooves?
Dynamic groove bottom: Ra 0.4–0.8; static grooves: Ra 1.6–3.2. Groove sides: Ra ≤1.6. Poor surface finish causes O-ring wear and leakage.