1. IATF 16949 / D&B Certificated. 2. GM, Ford & VOLVO Supplier Audited. 3. 100% Quality Assurance (Procast, Leakage Test, PPAP, CPK, SPC). 4. Modernlized Digital Systems(CRM, ERP, MES, E-tool Cabinet). 5. Average On-time Delivery rate: 98.2%. Rod End Bearings SI Series is a high-quality economy rod. Mainly used to support parts that require low concentricity, high working surface pressure, and slow swing and rotation movements. The advantage is that the ball insert permits the rod or bolt passing through it to be misaligned to a limited degree.