Is the 81-125 ball bearing?

A quick learner from WI says:
August 2, 2023
Tom
I purchased 10 of the 81-125 on 06-21-2023. They were installed as replacements on 5 large 33 year old mirrored closet doors. The fit is perfect however, the drag is immense.
Your technician Steve and I are both wondering if these are (not) ball bearing rollers?
A child would not be able to open these doors. I would appreciate your help.
Thanks
Tom G
Profile picture of Tom
Tom from SWISCO responded:
August 3, 2023

Hey, Tom. I'm sorry to hear you're having trouble. The 81-125 is definitely a ball bearing roller, so I don't think that's the reason why these are dragging. It could be another issue.

If you haven't already, the first thing you want to do is lubricate the roller and track. I recommend using a silicone spray, which is clean and easy to apply. I also suggest making sure that you turned the adjustment screw high enough to raise the housing over track. In my experience, the reason why a closet door drags like how you describe is because it hasn't been adjusted enough to get clearance. 

If those two methods fail, get back to me and we can look into other options. 
A quick learner from WI says:
August 3, 2023
I'll give it a try.
Thank you
Profile picture of Tom
Tom from SWISCO responded:
August 3, 2023

You're welcome! Please let me know how it works out, or if you had any other questions.
Sliding Door Roller, 1-1/8" Steel Wheel
Sliding Door Roller, 1-1/8" Steel Wheel
81-125
$9.97
How to identify patio door rollers
How to identify patio door rollers
VIDEO
WATCH >
How to Replace a Patio Sliding Glass Door Roller [1080p]
How to Replace a Patio Sliding Glass Door Roller [1080p]
VIDEO
WATCH >
How to maintain a sliding glass door
How to maintain a sliding glass door
GUIDE
READ >
How to replace a sliding glass door roller
How to replace a sliding glass door roller
GUIDE
READ >
Identifying the right replacement roller for your sliding glass door
Identifying the right replacement roller for your 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 3-4 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 (888) 991-1929 or at help@swisco.com.