Din 71550 Jun 2026

p_min = (δ_min × E) / [d × (C_factor)] Where C_factor depends on diameter ratios. Assuming solid shaft and hub OD = 160 mm → yields approx 95 N/mm².

. It is commonly used in automotive and industrial cooling systems to ensure a secure, leak-proof connection between a pipe (often copper or steel) and a flexible hose. Key Technical Details Din 71550

While DIN 71550 focuses on shafts, it operates within a “hole basis” system (most common) or a “shaft basis” system. In the hole basis system (preferred), the hole’s lower deviation is zero (H), and various shaft tolerances create clearance, transition, or interference fits. p_min = (δ_min × E) / [d ×