Makita 216103-2 Spare Part - INNER RACE 1016 6906
Makita part 216103-2 — Inner race (IR‑1016) for needle/drawn‑cup bearing. This is a genuine Makita replacement inner race used as the hardened raceway for the needle rollers in the impact‑wrench drive/gear assembly. It’s the exact drop‑in race called out on the Makita 6906 parts diagram, so it’s the correct service part when the inner race is worn, nicked or scored.
Key details you’ll want to know:
- Part number: 216103-2 (Makita).
- Application example: fits the Makita 6906 3/4" (19 mm) corded impact wrench..
- What it is: an inner ring (IR‑1016 style) for use with drawn‑cup/needle roller bearings — provides the hardened, precision raceway the rollers run on.
- Typical dimensions (IR‑1016 nominal): inner diameter ≈ 15.875 mm, outer diameter ≈ 22.225 mm, width ≈ 25.78 mm — matches the IR‑1016 specification used as Makita’s part reference.
Why this part matters: a damaged or grooved inner race lets needle rollers ride on imperfect surfaces, causing noise, rough operation and rapid bearing failure. Replacing the inner race with the original Makita part restores the correct hardened raceway and lets the bearing assembly run smoothly again. Installation is straightforward: the ring is mounted on the shaft and axially clamped against the shoulder per the bearing‑ring mounting practice for IR parts.
If you need the specific Makita part to repair a 6906 impact wrench (or to match the IR‑1016 inner ring in a compatible assembly), 216103-2 is the direct Makita replacement specified on the parts diagram.
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Compatible models this part will fit:
