Gearbox unit for Al-Ko KE 2200/40 chain saw in assembly

Gearbox unit for Al-Ko KE 2200/40, IKRA EKS 1600W chain saw complete (gear, ratchet, countershaft, bearings, shaft)
The gear has 26 teeth (57 mm) on the outside and 44 teeth (75 mm) on the inside. Maximum outside diameter is 93 mm.
Shaft length 72 mm, bearings 22 and 28 mm