Are the roller and axle for the 87-161 two separate parts?

A home owner from Arizona says:
April 13, 2020
I believe I found the sliding window roller assembly I need (87-161), but need more description on the roller: Is the roller and axle separate parts or all one piece.
Profile picture of Tom
Tom from SWISCO responded:
April 15, 2020

Thanks for reaching out to us! The roller and axle on the 87-161 are two separate pieces, though this roller comes fully assembled. I hope that clears things up.
Atrium Sliding Window Roller, 1/2" Flat Wheel
Atrium Sliding Window Roller, 1/2" Flat Wheel
87-161
$3.94
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.