104-5915 – Washer-Lock, Bearing
This is a genuine Toro OEM lock washer designed specifically for a bearing assembly on Toro outdoor power equipment (e.g., lawn mowers, trenchers, compact utility machines).
- It’s not a standalone bearing — instead, it’s a locking washer that seats against or around a bearing to help keep it in place.
- The washer typically has tabs or a keyed shape so that once installed under a nut or retainer, it prevents the nut from backing off (locking the bearing in position).
⚙️ Function
- Locking Feature: Helps secure the bearing by preventing rotation of the washer so the nut or retainer stays tight.
- Bearing Support: Provides a stable surface for the bearing to tighten against without damaging the bearing races.
🧰 Context in Machinery
- In OEM parts diagrams (Toro assemblies), part 104-5915 appears right next to the corresponding nut-lock for the bearing, indicating its role as the locking washer for the bearing setup.
📌 Notes
- It’s a specialized lock washer, not a generic flat washer — it’s shaped and sized to fit a particular bearing and mating nut.
