Original Makita Internal Gear 34 — part number 227387-7 — a direct replacement for the gear assembly used in Makita 150 mm random‑orbit sanders such as the BO6050 / BO6050J.
This component is the internal (ring) gear with 34 teeth that sits inside the gear housing (item 012 on the BO6050 parts diagram) and meshes with the 31‑tooth spur gear and the spiral bevel gear to drive the sanding orbit; it’s the part you want when stripped or damaged teeth cause noise, slippage or loss of orbital motion.
Supplied as an original Makita parts, 227387-7 restores correct gear engagement and alignment in the BO6050 — ideal if you need genuine Makita power tool parts to get your sander working like new again.
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