Polymer Bearings - igus® - #501

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499 iglidur® C 0.0 0.1 0.2 0.3 0.4 0.6 0.8 0 1 2 3 4 5 6 7 0.5 0.7 iglidur® C | Technical Data igus® GmbH 51147 Cologne | Phone +49 (0) 22 03-9649-145 Fax -334 | www.igus.eu Reduction of the inner-Ø [%] Moisture absorption [weight %] Graph 10: Effect of moisture absorption on plain bearings Moisture Absorption The moisture absorption of iglidur® C plain bearings is approx. 7 % when saturated in water, and this needs to be taken into account if this material is to be used in wet enviroments. Maximum moisture absorption At +23 °C/50 % r.h. 1.0 % weight Max. moisture absorption 6.9 % weight Table 06: Moisture absorption Installation Tolerances iglidur® C plain bearings are meant to be oversized before being pressfit. The bearings are designed for pressfit into a housing machined to a H7 tolerance. After being assembled into a nominal size housing, the inner diameter is adjusted to meet our specified tolerances. Testing Methods, page 55 Diameter Shaft h9 iglidur® C Housing H7 d1 [mm] [mm] D11 [mm] [mm] up to 3 0–0.025 +0.020 +0.080 0 +0.010 > 3 to 6 0–0.030 +0.030 +0.105 0 +0.012 > 6 to 10 0–0.036 +0.040 +0.130 0 +0.015 > 10 to 18 0–0.043 +0.050 +0.160 0 +0.018 > 18 to 30 0–0.052 +0.065 +0.195 0 +0.021 > 30 to 50 0–0.062 +0.080 +0.240 0 +0.025 > 50 to 80 0–0.074 +0.100 +0.290 0 +0.030 Table 07: Important tolerances for plain bearings according to ISO 3547-1 after pressfit Product Range iglidur® C plain bearings are produced to special order.