Internal & External Spline Cutting Services

At Precision Gears, we specialize in delivering high-quality spline cutting services tailored to meet the intricate needs of various industries. Our expertise in both internal and external spline cutting, including spline milling, ensures that we can provide precise solutions for your gear and spline manufacturing requirements.

What is Spline Cutting?

Spline cutting is a precision machining process, often performed on a milling machine or hobber, used to create grooves or ridges on a cylindrical surface, allowing for effective torque transmission between components. This technology is essential in numerous applications, particularly where alignment and load distribution are crucial for the efficiency of mechanical systems.

Our Spline Cutting Capabilities

Internal and external splines are critical mechanical features used to transmit torque, align rotating components, and accommodate axial movement between mating parts.

External splines are machined onto the outer diameter of a shaft (commonly found on drive shafts) and engage with an internally splined component such as a hub or coupling.
Internal splines are cut into the bore of a component and mate with an external spline to create a secure, torque-transmitting connection often used in industrial equipment.

Both spline types are essential in gearboxes (often functioning alongside spur gears, helical gears, and worm gears), transmissions, automotive components, drive systems, pumps, and motors where strength, accuracy, and repeatability are critical.

Machining Processes & Capabilities

Precision Gears utilizes advanced hobbing and shaping processes to produce accurate spline profiles with tight tolerances and consistent quality.

Hobbing Capabilities

Spline hobbing is ideal for producing both internal and external splines, particularly for longer lengths and production volumes.

Diameters: 1/2″ to 24″
Diametral Pitch: 64/128 to 2
Maximum Length: 56″

Shaping Capabilities

Spline shaping is well-suited for internal splines, shorter lengths, and complex geometries requiring high precision.

Cuts internal and external splines
Diameters: 0.5″ to 36″
Diametral Pitch: 48/96 to 2.5/5
Maximum Length: 6″

Materials and Technologies

Precision Gears works with a wide range of materials commonly used in spline-cut components. Final material selection is driven by customer requirements, application demands, and performance criteria.

Common materials include:

Carbon steels
Alloy steels
Stainless steels
Heat-treated and pre-hardened materials
Customer-specified proprietary alloys

Request a Quote

To request a quote, please complete this form. If you have a more urgent request, please call us at (262) 384-6360 for immediate assistance.

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Industries Served

Precision Gears supports a broad range of industries that rely on dependable spline performance in critical power transmission applications, including:

Agriculture, Lawn & Garden

Durable splines for drivetrain and implement components operating in harsh environments.

Hoists & Jacks

Precision splines for lifting systems requiring reliable torque transfer and safety.

Construction

Heavy-duty spline solutions for heavy machinery exposed to high loads and continuous use.

Food Service

Precision-machined splines for equipment requiring consistent performance and reliability.

Power Transmission

High-accuracy splines for gearboxes, couplings, and drive systems.

Pumps

Custom splines designed for efficient power transfer and long service life.

Request a Quote

Whether you need prototype spline development or production-ready components, Precision Gears has the expertise and equipment to deliver results. Contact our team to discuss your spline cutting requirements, request a quote, or learn how our custom machining solutions can support your application.

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Frequently Asked Questions (FAQ)

What types of splines can Precision Gears manufacture?

We manufacture both internal and external splines using hobbing and shaping processes across a wide range of sizes, pitches, and materials.

What industries do you serve with spline cutting services?

Our spline cutting services support agriculture, lawn and garden, construction, hoists and jacks, food service equipment, power transmission, pumps, and other industrial applications.

Do you support prototype and production runs?

We support both prototype development and production machining, with flexible scheduling and scalable capacity.

What materials can be used for spline cutting?

We work with carbon steels, alloy steels, stainless steels, heat-treated materials, and customer-specified alloys.

How does the diametral pitch affect the performance of a spline?

Diametral pitch influences tooth size, load capacity, and engagement characteristics of a spline. Finer pitches provide smoother engagement and improved alignment, while coarser pitches offer higher strength and load-carrying capability. Selecting the correct diametral pitch ensures optimal torque transmission, reduced wear, and long-term performance for the specific application.

Can you produce custom spline configurations?

Yes. We specialize in custom spline cutting based on customer drawings, specifications, and performance requirements, including prototypes and production runs.

PRODUCTS

With highly skilled technicians, manufacturing expertise and a fully equipped facility, we can perform the precision service you need for your custom gear project.