Customized SAE 4340 Forged Steel Shaft For Gears

Customized SAE 4340 Forged Steel Shaft For Gears

Introduction This comprehensive product range includes precision transmission shafts, valve stems, eccentric shafts and stepped shafts designed for demanding rotary machinery applications. High-quality materials such as 20 steel, 42CrMo, stainless steel 304 and 316 are carefully selected according to specific load requirements and operating environments. Components are expertly forged, normalized or quenched and tempered, then precision finish machined by CNC turning and milling operations. The advanced design emphasizes exceptional coaxiality, high fatigue strength and excellent dimensional stability under cyclic loading conditions.
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Description
Technical Parameters

Application Scenarios

Precision shafts are widely used in rotary equipment such as actuators, transmissions, spindles, and drive trains. They are designed for reliable coupling and bearing support, performing consistently under continuous or frequent start‑stop conditions in power and fluid machinery applications.

 
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Product Description

We grind shaft journals to IT6, control surface roughness at Ra 0.8–1.6, and hold keyway symmetry within 0.05 mm. Major diameters are available with induction hardening or nitriding to over HRC 50. Each shaft is inspected for runout, straightness and surface hardness, then rust-proofed and end-capped. Material and in-process checks are performed. Shipments come with a quality certificate and material report. Custom packing and marking are supported.

 
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