Precision CNC Turning of a Steel Double Step Crankshaft with Blind I.D.

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Stepped O.D. with Blind I.D.

At Alloys Unlimited, we specialize in Pre-Machining for a wide range of applications. The single step highlighted here was designed for use in a power generation application. The customers supplied 2D CAD drawings which called out for dimensions of 25” in length, with an outside diameter of 20”, machined to tolerances of ±0.125”. To learn more about this project, or the processes used to machine it, see the table below or contact us directly.

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Highlights of a Pre-Machining Project

Product Description	This is used as Crankshafts in the Power Generation Industry
Capabilities Applied/Processes	Primary: Pre-Machining / Precision Bored
Equipment Used to Manufacture Part	Turret Lathe
Overall Part Dimensions	O.D.: Ø 20" Length: 25"
Tightest Tolerances	± 0.125"
Material Used	4140 Steel, 4150 Steel, 1045 Carbon Steel H13 Tool Steel, A2 Tool Steel, D2 Tool Steel
Material Finish	100 RMS
In process testing/inspection performed	Dimensional Inspection
Industry for Use	Power Generation Application
Volume	Unlimited
Delivery/Turnaround Time	5 – 7 days
Delivery Location	Eastern United States
Standards Met	Customer Specifications, 2D CAD Drawing
Product Name	Single Step O.D. with Blind I.D.