Series 27i - snap-open along inner radius 1. Large pins for long service life 2. Modular interior separation 3. Double stop dog for long unsupported length and Lateral glide surfaces for side-mounted operation 4. Space-saving ratio of inner-to-outer dimensions 5. Integrated strain relief possible 6. Side wear pads 7. Cable-friendly smooth interior. Series 27i snap-open along inner radius can be combined with Series 27 snap-open along the outer radius Inner widths Bi: 1.97 up to 7.87 (50 - 200 mm) Bending radii R: 2.48 up to 9.84 (63 - 250 mm) Pitch: 2.2 (56 mm) per link = 6 links/ft (18/m) When to use Series 27i If snap-open accessibility along the inner or outer radius is required If stable chain of moderate size is required If loads are moderate If Integrated strain relief at the connection point is required If easy installation is required When not to use Series 27i If maximum stability is required System E4, Series 280 If chip protection is required Energy tubes E2, R58 If the application is very simple