Replacement roller assemblies (2)

A contractor from El Cajon CA says:
December 8, 2015
Hello - My name is Peter Isaacson and I have included two pics of the two roller assemblies we need to replace along with the ID tag. The door is an 8-0 and the slider is 4-0.

The wheel assy. case measures 1 1/16" high and 3 1/16" long - not including the slotted tab extending from it. To my eye it most resembles your parf# 81-174 - though not exactly.

Would like to get assys with steel or not plastic wheels due to the weight of the slider. Thanks in advance for your help!
User submitted photos of patio door hardware.
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Tom from SWISCO responded:
December 9, 2015
The 81-174 appears to a close match. How do the other measurements compare to your roller? Some other important measurements are the width (with and without dimples) and the diameter of the wheel.
A professional from California says:
December 9, 2015
Isn't that 81-164? 81-174 is 5/32" wider.
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Dave Sr. from SWISCO responded:
December 9, 2015
I agree with the professional from California, see our 81-164 first and see if that might be better.
Patio Glass Door Tandem Roller, 1-1/8"
Patio Glass Door Tandem Roller, 1-1/8"
81-164
$15.42
Sliding Glass Door Tandem Roller, 1-1/8"
Sliding Glass Door Tandem Roller, 1-1/8"
81-174
$15.30
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