Hitachi 938-058 Spare Part - Bearing Cover (b)

Hitachi 938058 — Bearing cover (B). Clean, simple replacement part that secures and protects the spindle bearing on Hitachi disc grinders. This original Hitachi bearing cover is listed on the G10 series parts diagrams (for example G10SR and G10SB1), so it’s the exact cover used around the spindle bearing on those grinders.

The cover is made to accept the standard 6001 deep-groove ball bearing used in these models (bearing size 12 × 28 × 8 mm), so it mates directly with the factory bearing and keeps grease and debris away from the race.

If your grinder’s outer bearing cover is cracked, worn or missing, this part restores the correct housing for the spindle bearing and helps remove play in the wheel assembly — exactly what you need to get a G10-series grinder back to safe, smooth operation.