Series 3938, Energy chain® with crossbars every second link. 1. High torsional rigidity 2. High side-mount stability due to undercut 3. Closed and open styles can be combined 4. Hinged snap-open removable lids along outer radius of Energy Tube 5. Lids and crossbars are removable along both radii 6. Crossbars on Energy Chains® are removable along both radii 7. Lateral glide surfaces for side-mounted operation 8. Wide, rounded plastic crossbars - cable friendly 9. KMA mounting brackets with attachment points on all sides 10. Locking or pivoting mounting brackets available 11. Energy Chain® also available with reverse bending radii Inner widths Bi: 1.97 up to 15.75 (50 - 400 mm) Bending radii R: 2.95 up to 13.78 (75 - 350 mm) Pitch: 2.64 (67 mm) per link = 5 links/ft (15/m) When to use Series 3938 If subject to high torsional or shearing forces For side mounted applications involving long unsupported lengths For long-term operation in very moist environments When not to use Series 3938 If a quieter version is required Series 380 Series 390 Series R780