Georg:
On the 50C series mower decks, there were two version of bearings. The most common was the
ST-745 sealed bearing. You can buy this as an Assembly or the Bearing alone. IH/Cub Cadet discontinued that part BUT it is available from aftermarket sources. One of our Sponsors CCSpecialties sells them both ways. See:...
Mower Deck Parts
If you can't find the Part in Germany, CCSpecialties will ship to you.
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Roland Bedell
CC Models: 100, 105, 1450, 782, (2) 784, & 2072
Buy: Made in the USA