ROI Framework
Annual savings = (current scrap rate - ball cage scrap rate) × annual production × cost per part
Example: 2% scrap at 1M parts/year, $0.10/part cost → savings = (0.02 - 0.005) × 1,000,000 × $0.10 = $1,500/year. Upgrade cost for 4 bushings: $360. ROI: 3 months.