Sliding Glass Door Rollers ReplacementThese sliding door wheels are compatible with common wood, extruded aluminum or vinyl framed sliding glass doors manufactured by Jeld Wen, Truth 31761A & Truth 30410, Milgard, Marvin, Malta, Peachtree, Weathershield, Pozzi, Hurd, Lincoln, Caradco, Eagle, K&K - Kolbe & Kolbe, Andersen and others.Side AdjustmentThis common tandem roller wheels features a 1 1/4" steel concave ball bearing wheel and a side adjuster that is accessed through the face of the sliding door panel. Easy adjustable with a flat or cross head screwdriver.Standard DimensionHeavy duty 1-1/4 inch steel ball bearing wheel with 11/16 inch thick housing and 5-3/4 inch hole centers. For further dimensional information, please see the line drawing.Simple to InstallThe sliding door roller assembly can be installed fast and effortlessly without extra tools, just remove the broken or missing tandem roller assemblies from your sliding glass doors or windows, then install our glass patio door rollers, and your sliding glass door will function well again.Durable and Solid ConstructionThe sliding patio door roller made of high quality radial ball bearings still working after 100,000 cycles for 2 rollers bear 330 pounds (150kg). While others may use the bearings made from Carbon Steel W/O heat treating, We insists all bearings made from Heat Treated Bearing Steel.