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Manufacturing case

This page documents a specific made-to-drawing lower assist shaft. It is not a standard off-the-shelf replacement product.

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Lower Assist Shaft made of medium-carbon steel with external and internal splines, precision machined and laser marked
Lower Assist Shaft made of medium-carbon steel with cold forged splines, laser marked 2D barcode, high precision machining and tight tolerance.
Lower Assist Shaft made of medium-carbon steel with cold-forged splines, precision machined features, and laser-marked 2D barcode for traceability
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Lower Assist Shaft made of medium-carbon steel with external and internal splines, precision machined and laser marked
Lower Assist Shaft made of medium-carbon steel with cold forged splines, laser marked 2D barcode, high precision machining and tight tolerance.
Lower Assist Shaft made of medium-carbon steel with cold-forged splines, precision machined features, and laser-marked 2D barcode for traceability

Lower Assist Shaft

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Description

Manufacturing Case Overview

This case records one component manufactured to customer-approved requirements. The values below apply to this example only and are not universal specifications for new inquiries.

Manufacturer
Jinhua Machinery
Component category
Lower assist shaft
Material
Medium-carbon steel with cold-drawing pretreatment
Manufacturing route
Cold-forged external and internal splines, secondary spline shaping, turning, milling, grinding and 2D-code marking
Heat treatment
Stated hardness range of HRA 58–64
Verified drawing controls
Outer-diameter tolerance of ±0.005 mm and inner-diameter tolerance of ±0.015 mm for this component

New parts require independent review of the drawing, standard edition, datum system, material, heat treatment, quantity and inspection plan. Equivalent grades or accuracy numbers are not assumed to be interchangeable.

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