Involute Spline Shafts

Feida involute spline shafts are transmission shafts with multiple involute spline teeth machined around their circumference. The corresponding spline bore is typically machined into components such as gears, couplings, sliding sleeves, and flanges. The internal and external splines engage with each other to transmit power and torque.

Product Parameters

Main Structural Feature

Feida involute spline shafts combine the torque-transmitting function of a shaft with the strength and stability provided by a toothed connection structure.They feature:

High Load-Carrying Capacity

Excellent Centering Performance

Multiple-Tooth Engagement

Axial Sliding Capability

The Production Process

Feida's involute spline shafts are precision transmission components that require strict control of dimensional accuracy, tooth profile accuracy, and surface quality. The manufacturing process generally includes the following steps:

Raw Material selection: Depends on the working conditions of the component.

Forging: Heating metal (or forming it at room temperature) and applying pressure to shape it into a desired rough form while improving its internal structure.

Turning: The raw material is first machined by turning to create the basic shaft geometry and prepare it for spline machining.

Spline Tooth Machining: Our common manufacturing methods for involute splines include gear hobbing,gear shaping.

Heat treatment: To enhance the strength and service life,we perform various heat treatments,such as quenching and tempering,induction hardening,Carburizing and quenching.

Finishing and Inspection:

Grinding: Performed after heat treatment;A precision finishing operation for gear teeth to ensure high accuracy and superior surface finish.

Inspection: After machining,we will use advanced inspection instruments to measure critical spline parameters, including major diameter,minor diameter,tooth thickness,tooth profile deviation,concentricity,and surface roughness.

Main Equipment

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

Application Fields

Automotive Industry

Are widely used in automotive transmission systems. Typical applications include transmission input shafts, output shafts, drive shafts, and clutch connection components,providing high strength and long-term durability.

Construction Machinery

Our involute splines used for construction equipment such as excavators, loaders, and cranes often require components capable of transmitting high power under heavy loads due to their excellent torque capacity and impact resistance.

Aerospace and Advanced Equipment

Feida involute splines are used in various aerospace transmission applications due to their high strength-to-weight ratio and reliable performance.

Industrial Automation Equipment

To ensure accurate motion control and stable operation,high-precision spline connections are also used in robotic joints, precision reducers, and automated production equipment.

Customization Services

As an experienced manufacturer of involute spline shafts in China, Feida Machinery provides OEM customization tailored to customers' specific applications and operating conditions. Available options include:

.spline parameters (number of teeth, module, pressure angle, pitch diameter, major diameter, minor diameter)

.spline length

.tooth profile,

.accuracy grade

.fit type

.shaft structure

.material

FAQ

What materials are commonly used for involute spline shafts?

The material should be selected according to the required torque, load, impact resistance, wear resistance, shaft dimensions, heat treatment, and operating environment.Common materials include 45 steel,40Cr,42CrMo,and 20CrMnTi.

Can you manufacture small-batch or prototype?

For prototypes and low-volume orders, flexible machining methods such as spline milling or other suitable processes may be considered. For large production volumes, hobbing or other high-efficiency processes may provide better manufacturing economics.

Do you provide samples before bulk orders?

Yes.After receiving the 2D drawings, 3D CAD models, technical specifications, or approved samples,we start to make production samples for our clients.Our sample lead time is about 20-30 days.