Roller ID

A quick learner from Harwich Massachusetts says:
September 8, 2020
Looking for replacements and it looks to me like your 81-166S might be right?
I believe the body is 3 1/8" long by maybe 1 1/4" high and 11/16" wide.
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Bob from SWISCO responded:
September 14, 2020

If that width and height match, then yes, the 81-166S looks very promising. Just confirm the wheel diameter as well. 
Dual Roller Assembly, 1-1/4" Steel BB
Dual Roller Assembly, 1-1/4" Steel BB
81-158
$14.40
Dual Roller Assembly, 1-1/4"
Dual Roller Assembly, 1-1/4"
81-166S
$25.70
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