Storm door for sliding glass door

A quick learner from Plymouth Wisconsin says:
This Large storm door has two wheel assemblies that will need to be replaced
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Paul from SWISCO responded:

Greetings. You are showing the inside part of a patio sliding door roller assembly. If you just need the wheel and axel,you can use the 81-224 & the 81-304. If not, you need to remove the outside housing and show us, and should also measure the thickness and height of the housing.

81-224 : 1-1/4
1-1/4"dia Replacement Steel Concave BB Wheel
81-304 : Roller Replacement Axle
Roller Replacement Axle
How to maintain a sliding glass door
How to maintain a sliding glass door
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