Meets or exceeds ANSI specified standards. Prestretched to eliminate initial stretch. Solid rollers maximize the product life cycle. Welded bushings. Metal fatigue is avoided by shot peening the parts before assembly. 10" length on all sizes. No. S06351: 3 8" pitch No. S06411: 1 2" pitch No. S06401: 1 2" pitch No. S06501: 5 8" pitch No. S06601: 3 4" pitch No. S06603: 3 4" pitch No. S06241: 1" pitch No. S06251: 1 1 4" pitch