Too Much Side Shake?

fourtimes4 · Jul 12, 2026

Serviced this 560 caliber and the amplitude was 190 to 205. Tore it back down & reinspected. Found a couple of what I considered issues. The center wheel appeared to have too much side shake. Attached is a highly magnified video of a new wheel (550-1224) in the movement with only the MS barrel installed. No cannon pinion. Is this too much?
Thanks
Rick

Canuck · Jul 12, 2026

T’s wore out! If it is a 15-jewel model, top and bottom bushings on centre wheel arbor are worn. Since you had to ask the question, rightly or wrongly I am going to assume that you won’t be re-bushing those bearings yourself. But the wear is sufficient that your amplitude readings may be the result.

Too Much Side Shake?

fourtimes4

Canuck

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