Samsung TV and Treadmill

The treadmill has been used for less than a year, and its problem is as shown in the pictures; the engine wheel is damaged, and I don't know what exactly the issue is. Electrically, it works completely fine. It has a heart rate monitor, calorie burn rate indicator, and minute counter. This is the only problem this treadmill has. The Samsung TV is a 2012 model, approximately 55 inches. Its issues are two minor scratches on the screen and a power problem—it turns on sometimes and shuts off other times. Also, when unplugged, it keeps making the startup sound while the screen remains off. These are the only two problems. All inputs work perfectly at 100%, and there are no other issues besides those mentioned. The price is 650, negotiable reasonably. Contact via WhatsApp.