Metabo part 343433280 — Flange (flange assembly / gearcase flange) complete with integral bearing — is the original Metabo replacement that secures the spindle and houses the gear/bearing interface on many 115–125 mm angle grinders. It’s a direct-fit flange/gear cover that keeps the gearbox aligned and protects internal gears and the bearing; some listings describe it as a gear cover with bearing.

This flange is used across several Metabo (and Metabo HPT / HiKoki/Hitachi‑style) grinder models that use the same gear housing layout — for example: WE 15‑150 Quick, WEP 15‑150 (and WEPBA variants), WP 12‑150 / WPB 12‑150, and WEV/WEA 15‑125 series. (Cross reference with the 8 digit code from the side of the machine to confirm fit).

Technical notes: it’s supplied as a complete flange assembly (Metabo part number 343433280) and interfaces with the tool’s bearing(s) commonly specified in Metabo parts lists as 6×19×6 mm or 8×22×7 mm ball bearings depending on the model — the exact bearing size depends on your grinder variant, so match to your machine’s parts list when fitting. This genuine Metabo flange is a straightforward replacement when the existing flange/gear cover or bearing shows wear or damage and is one of the power tool parts you’ll want to restore correct spindle alignment and quiet operation.