RAY FOSTER – Belt Replacement for Alloy Grinder -Spindle Drive AG04 24in 101701 por | Jul 22, 2026# 101701 – Mfg # R116. RAY FOSTER – Belt 24in for alloy Grinders. Parts for Polishers and Grinder. The forward thrust of the tension spring (located inside the mounting hole) will tighten the belts sufficiently.