Wear Prevention Damage Prevention Custom Solutions Glossary of Terms Click here to learn about our latest products	ZefTuf® Cold Flow Resistance CFR and CFR-P (Premium) Center Bowl Liners and Center Plate Protectors provide unmatched durability and wear protection regardless of service environment.  Available in low (CFR) and high friction (CFR-P) models, each is designed to improve curving and lateral stability performance of truck (bogie) systems. Integrally molded carbon ring/studs provide consistent conductivity over the life of the liner.  Model Material Diameter Thickness Package Quantity ZT-370 ZefTuf-CFR 14" – Horizontal liner 1/4" Each / 25 per box ZT-371 ZefTuf-CFR 16" – Horizontal liner 1/4" Each / 25 per box ZT-380 ZefTuf-CFR 16" – Full bowl liner for 2" deep bolster bowls 100 per skid ZT-381 ZefTuf-CFR 16" – Full bowl liner for 2 1/4" deep bolster bowls 100 per skid Patented IMPORTANT:  Dimensions and surfaces of bolster bowl and center plate must meet AAR standards CFR Specifications for Models ZT-370, 371, 380, and 381 CFR Liners Temperature Extremes Coefficient of Friction Lubrication Precautions Heat 140°F to -50°F 0.24 Static / 0.20 Dynamic None required Sharp edges Use caution when welding IMPORTANT:  Meets AAR Requirements S-3004 and M-976 Model Material Diameter Thickness Package Quantity ZT-350 ZefTuf-CFR-P 16" Full Bowl liner for 2" deep bolster bowls Each / Bulk ZT-351 ZefTuf-CFR-P 16" Full Bowl liner for 2 1/4" deep bolster bowls Each / Bulk ZT-561 ZefTuf –CFR-P 16” Horizontal liner 1/4” Each / Bulk Patented IMPORTANT:  Dimensions and surfaces of bolster bowl and center plate must meet AAR standards CFR-P Specifications for Models ZT-350, 351, 561 CFR-P (Premium) Liners Temperature Extremes Coefficient of Friction Lubrication Precautions Heat 140°F to -50°F 0.33 Static / 0.27 Dynamic None required Sharp edges Use caution when welding IMPORTANT:  Meets AAR Requirements S-3004 and M-976 Self-Locking Knuckle Pins replace worn or broken C-10 pins with non-metallic knuckle pins for superior performance.  Easy installation, lightweight, and no cotter pin required. Direct replacement of  AAR C-10 pins. Model Material Weight Package Quantity ZT-2075 ZefTuf-HD .75 lbs. (vs. 8.5 lbs for steel pins) Each / 50 per box Patented Specifications Temperature Extremes Heat 140°F to -50°F Not to exceed 250°F
ZefTek, Inc. | 2175 Aucutt Road | Montgomery, Illinois 60538 | Tel: (630) 801-1616 | Fax: (630) 801-0013 | info@stdcar.com