Rectangular Spline Shaft

Rectangular spline shafts from Feida Machinery are cylindrical shafts with multiple longitudinal rectangular spline teeth machined evenly around its outer circumference,providing accurate positioning and reliable torque transmission.

The mating hub features corresponding internal spline grooves. When assembled, the external spline teeth engage with these grooves. During operation, torque is transmitted through the working flanks of the spline teeth, enabling the shaft and hub to function as an integrated transmission assembly.

Technical Parameters

Number of Teeth: Affects load distribution, torque capacity, and overall shaft dimensions.

Major Diameter: Is one of the primary dimensional parameters defining the external spline profile and mating relationship

Minor Diameter: Is an important dimension for the centering and fitting of the spline connection.

Tooth Width: Affects tooth contact and load distribution

Effective Engagement Spline Length: Determines how much of the spline surface participates in torque transmission.

Tolerance and Fit: The shaft and mating hub must maintain an appropriate fit

Manufacturing Process and Quality Control

Feida production operates under ISO 9001:2015 certification, including raw material preparation,forging,turning,spline machining(spline hobbing,spline shaping),heat treatment,finishing machining(cylindrical grinding,Spline grinding).

Our finished rectangular spline shafts must undergo dimensional and geometrical inspection.

Common inspection items include:

.Outside diameter
.Spline major diameter
.Spline minor diameter
.Tooth thickness
.Overall spline accuracy
.Concentricity
.Hardness
.Surface roughness

Comparison Between Involute Spline Shafts and Rectangular Spline Shafts

Applications

Automotive and Vehicle Transmission Systems

Used in various vehicle transmission and power-transfer mechanisms where reliable torque transmission is required.

Machine Tools

In machine tools, our spline shafts may be used in spindles, transmission mechanisms, speed-changing systems, and other precision drive components.

Construction Machinery

Used in construction equipment such as excavators, loaders, lifting equipment, and other heavy machinery often operates under high loads and impact conditions.

Agricultural Machinery

Used in tractors, harvesters, rotary tillers, and other agricultural equipment.

Industrial Automation and Transmission Equipment

Used in automated machinery, gearboxes, industrial drive systems, and other equipment requiring reliable torque transmission or axial movement.

FAQ

1.Are your a factory?

Yes,we are a factory that have been specializing in manufacturing spline shafts since 1988.

2.What is the importance of heat treatment for spline shafts?

Heat treatment enhances the hardness, strength, and toughness of spline shafts, making them more resistant to wear and fatigue.

3.What module for spline shafts can you produce?

M0.5-M5

4.Can you provide customized service?

Yes,we can support OEM &ODM services.

5.What are the common materials?

The material should be selected according to the required strength, wear resistance, load conditions, and heat treatment requirements.Common materials include:

· 45 steel
· 40Cr
· 20CrMnTi
· 42CrMo
· 20CrMnMo