Original Bosch 1607000A06 — internal (hollow) ring gear designed for Bosch electric chain saws. This original Bosch replacement transfers drive from the motor/sprocket to the chain and is finished to fit the saw’s drive hub precisely.

Fits a range of Bosch models including AKE 30‑17 S, AKE 35‑17 S, AKE 40‑17 S, AKE 35‑19 / AKE 40‑19 series and the GKE 35/40 BCE machines (check your tool’s 10 digit product code to confirm).

Key details: genuine Bosch internal (hollow) gear with a splined hub (designed to fit with the saw’s drive shaft). Typical measured dimensions listed for this part are an outer diameter of roughly 107 mm, an inner bore/spline diameter in the low‑teens of millimetres, about 61 teeth and a spline count around 14 (dimensions quoted are representative of the part as supplied for the models above).

If your chain drive is skipping, noisy, or the teeth look worn or chipped, replacing this original Bosch ring gear restores proper engagement and smooth power transfer without modifying the saw.

(Part number: 1607000A06 / EAN 4053423212587.)