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Delrin Rods

Further Information about Delrin rods

Last Modified: 15th Apr 2016

Our manufacturers produce engineering plastics that are slightly oversize in either diameter and/or thickness. This oversize tolerance, which is listed in the tables below, is provided to assist customers to produce very accurate items within the size shown and remove any minor surface imperfection.

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Delrin rod tolerances:

Nominal Diameter Tolerance in mm
4 +0.1 to +0.3
5 - 6 +0.1 to +0.4
8 - 10 +0.1 to +0.5
12 - 14 - 16 - 18 - 20 +0.2 to +0.7
22 - 25 - 28 - 30 +0.2 to +0.9
32 - 36 - 40 +0.2 to +1.1
45 - 50 - 56 +0.3 to +1.3
60 - 65 - 70 +0.3 to +1.6
75 - 80 +0.1 to +2.0
90 +0.5 to +2.22
100 +0.6 to +2.5
110 +0.7 to +3.0
120 - 125 +0.8 to +3.5
130 - 135 - 140 +0.9 to +3.8
150 +1.0 to +4.2
165 - 180 +1.2 to +5.0
200 +1.3 to +5.5
230 - 250 +1.5 to +6.2


Summary:

Delrin rod is great as a machining material and commonly results in a superb finish. It is more suited to the mechanical applications than acetal plastic is.  It is slightly harder, has lower thermal expansion and potentially better wear rates than acetal however it remains unsuitable for food contact applications