Continental Industrie Model - 020 - Manual (Page 2)

Values, dimensions and reference in this brochure are approximate and intended as guide only, not for construction and are subject to change without notice
DETAILED ENGINEERING DESCRIPTION - CONTINENTAL INDUSTRIE
DEB020EN – 04/2010
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5.0 Bearings
5.1 The rotor assembly is supported by 2 heavy duty grease lubricated ball bearings,
single row, sized to withstand the thrust load also type SKF or FAG.
5.2 Sized for minimum 10 years of operation (Direct Drive only), following SKF L10
bearing life calculation method.
5.3 Bearings are mounted in outboard type bearing housings and located so that
bearings may be serviced without disassembling the blower casing or piping.
6.0 Shaft
6.1 C35 (AISI 1035) carbon steel shaft, straightened and stressreleved
6.2 Shaft is ground all over
6.3 Stiff shaft design to minimize vibration
6.4 The diameter of the shaft end is 38 mm (1.5”)
7.0 Shaft seals
7.1 Shaft sealing is accomplished using graphite ring seals or carbon ring seals.
8.0 Impellers
8.1 The impellers are in cast aluminium, in EN AC-43100 (AISI 360.1).
8.2 For minimum corrosion all aluminium alloys are non copper alloys
8.3 The outer diameter of the impeller is 409 mm (16”)
8.4 Each impeller is automatically sanded or shotted when leaving the foundry before
the machining
8.5 Each impeller is statically balanced.
8.6 Impeller tip speed: 75 m/sec (246 FPS) at 3600 rpm.
8.7 First critical speed (10 stages) 4620 rpm.
8.8 Impeller assembly: to consist of a heavy steel shaft accurently machined and one or
more aluminium alloy cast impeller(s), statically balanced, securely keyed to shaft
and held in place by lock washers and locknuts.