Spline Shafts

Customized by Feida Machinery factory , spline shafts are mechanical components that have ridges or teeth and function by meshing with grooves in mating components, transferring the torque to mating components.In addition to transmitting torque,they also have functions such as absorbing misalignment,enhancing strength,reducing vibration and noise,simplifying assembly and disassembly,axial sliding,etc.

Two common types

1.Rectangular :Because of their straight-sided teeth with rectangular(flat)tops and roots,they have the advantages of simple design,low manufacturing cost,and easy machining and inspection.
2.Involute :They have involute curves (similar to gear teeth),rounded tooth roots,uniform pitch,resulting in self-centering function,high load capacity,high strength,and interchangeability.

Core parameter

Module:M0.5-5
Precision grade:ISO/DIN 6-10
Number of teeth: the more teeth,the higher load capacity
Pressure angle: the common values are 30, 37.5, and 45 degrees.
Smaller pressure angle gives higher load capacity; larger angles are better for sliding connections.
Pitch diameter: the theoretical reference circle.

Application

Involute spline shafts are suitable for connections with large loads, high centering accuracy requirements, and large dimensions. They are typically used in a wide range of applicaitions, such as automotive powertrain systems, steering mechanisms, boat engines, propeller systems,winches,aircraft engines, gearboxes, differentials, transfer cases, etc.

After more than 30 years of development,Feida Machinery now has three factories:one for mechanical transmission components, one for customized precision parts ,and one for sheet metal parts.We are able to produce high- quality spline shafts using CNC spline processing techniques (e.g., hobbing, shaping, broaching, grinding,etc.) and high-quality raw materials (e.g.,40Cr,42CrMo,20CrMnTi,6061, 7075,etc.).

The whole machining process

Raw materials → Forging → Turning → Spline processing → Milling → Heat treatment → Grinding → Inspection → Packaging&shipping

Main manufacturing equipment

With more than 30 years of development,Feida Machinery has a complete set of advanced manufacturing equipment,including CNC lathe,CNC gear hobber, CNC gear shaper,CNC gear shaving machines, CNC spline broaching machine,CNC gear grinder,CNC machining center,etc.

Heat Treatment

Our heat treament processes include quenching & tempering, carburizing & quenching, high-frequency hardening, carbonitriding, nitriding, etc.Through heat treament ,The mechanical properties of our spline shafts can be optimized very well.

FAQ

How do you guarantee the quality of precision parts?

Feida has passed ISO:2015 quality management system certification.
We implement a multi-stage Quality Control (QC) system:
Initial Article Inspection (FAI): Full dimensional verification before mass production starts.
In-Process Quality Control (IPQC): Sampling checks every 2–3 hours during the machining process.
100% Final Inspection: Every part undergoes a final check for dimensions and surface finish before packaging.

How are your after-sales services?

We have established a comprehensive after-sales service system,which provide timely technical support and solutions to ensure that customers have no worries during use.