Are bearings and balls in 81-137 stainless steel?

A quick learner from Illinois says:
Ordered 6 81-137 REVERSE MOUNT ROLLER ASSEMBLY, STAINLESS STEEL.Are bearings and balls all SS. If not can these be taken apart to install SS bearings?Thank you.PAUL.630*531*1002
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:

I believe they are stainless being that the wheel itself is stainless. However I don't believe it would be an easy job to switch out bearings. The wheels and housing are riveted together at the factory. Best to keep the wheels lubricated to keep them in good working order just to be safe.

How to identify patio door rollers
How to identify patio door rollers
VIDEO
WATCH >
How to maintain a sliding glass door
How to maintain a sliding glass door
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.