This is the rear wheelchair wheel assembly for the Drive Sentra EC Heavy Duty and Sentra Extra Heavy-Duty bariatric wheelchairs. If you need just the wheelchair hand rim replaced, it can be purchased at the following link:
What is the resistance (max weight) of this wheel?
The maximum weight capacity on the bariatric wheelchair that this rear wheel assembly goes on says up to 500 LBS; the wheel alone does not have a weight capacity provided by the manufacturer.