Involute Steel Spline Shaft and Coupling

Overview Quick Details

Place of Origin:
Jiangsu, China
Brand Name:
Model Number:
Torque Capacity:
Product name:
Involute Steel Spline Shaft and Coupling
spline shaft
Heat treatment:
temper & quench, carburizing, etc.
Surface Treatment:
Rust-proof Oil Plated
EPT Standard
Spline Type:
Clients Drawings
Pressure Angle:

Supply Ability

Supply Ability:
500 Piece/Pieces per Month Involute Steel Spline Shaft and Coupling

Packaging & Delivery

Packaging Details
Involute Steel Spline Shaft and Coupling Seaworthy Plywood Packaged
Lead Time :
Quantity(Pieces) 1 – 200 201 – 500 501 – 1000 >1000 Est. Time(days) 30 45 60 To be negotiated

Online Customization

Involute Steel Spline Shaft and Coupling

Product Description

LONGSUMmanufacturing capabilities include the production of splined shafts for axles, power transmission, gearboxes and other motion control applications. Automated machines give our manufacturing team the versatility to machine or cold form splines. We have extensive experience with meeting the most challenging shape dimensions and tight tolerances. Machining methods include Milling, Hobbing, Shaping, Broaching and Slotting.Our quality raw materials such as carbon steel, alloy steel, stainless, bronze, aluminum and competitive pricing provide the best value in today’s market.


To assure that a spline achieves a proper fit, we request that gaging be included in the budget presented to us. We also recommend full complement gaging for involute splines, especially in difficult to reach splines and harder grades of material. The alternative requires measurement between wires, which frequently is impractical.

For small lot quantities and reverse-engineering solutions where gaging may not be practical, the mating part, either male or female, can be used as the standard. Otherwise, we would have to consider making both parts and researching and developing different possibilities.


Shaping and broaching are two of the most efficient methods to produce keyways and internal splines. Maintaining the tight tolerances is one of the most critical factors when performing keyway shaping and broaching services. Our Plant is well-equipped to handle all types of customer specific requirements.


Internal straight-sided splines may require manufacturing either by broaching or by shaping. Broaching is generally the best solution, depending on the quantity and length/size of spline. Shaping can be more costly since it normally requires fabrication of a special cutter, or a single cutter to feed and index each slot.

Our Services

Gear Types

spur gear, helical gear, internal spur gear, ring gear, straight/spiral bevel gear, hypoid gear,

crown wheel &pinion, gear shaft, worm gear&worm shaft, spline shaft & bushing, etc.

Gear Material

carbon steel, alloy steel, stainless steel, brass, bronze, casting iron, nylon, etc.

{ GB Steel: C45, 40Cr, 20CrMo, 20CrMoTi, 17CrNiMo6, 20CrMnTi, 42CrMo, etc. }


gear blank turning, gear hobbing, gear milling, gear shaping, gear shaving, toothgrinding,


Heat Treating quenching, carburizing, nitriding, carbon-nitriding, salt bath quenching, etc. Application Automotive, Agricultural, Electronic, Industrial, Medical, Defense, Off-highway, ect.

All gears are packaged for safe shipping and convenient storage. Gears are carefully packaged using the most appropriate materials and method for the gear type.

We’d like to work with your forwarder to ship the products to you. We also work with experienced forwarders to shipping the products to client all over the world. If you don’t have any forwarder to do the shipping, please let us know the most convenient port for you, then we can arrange the shipment for you.

Company Information

Longsum Company has continued to build a solid reputation for quality, service and reliability. From the very beginning, Longsum has provided high precision spur, helical and bevel gears that meet the rapidly changing and demanding requirements of the gear industry.

Longsum’s primary goal is to ensure customer satisfaction by improving the manufacturing process, eliminating waste, and delivering a quality product on time at a competitive price.

To achieve those objectives, Longsum has embraced the continuous improvement philosophy while implementing the most advanced technology available for the machining, heat treatment and inspection of our products. We are an verified supplier on Alibaba and have consistently received vendor awards for both quality and on-time delivery. Longsum takes great pride in its history of steady growth and its record for maintaining long-lasting customer relations.


Q: Do you make customized products based on our design drawings?A: We are a professional gear & shaft components supplier with experienced engineering team, to make custom products according to clients’ drawings.Q: Will my drawing be safe after you get it?A: Don’t worry about this. We won’t release your design to any third parties unless have your permission. And we can sign the NDA before you send the drawing.Q: What is the MOQ?A: The MOQ is based on the product dimension, it’s annual usage, etc., the price will be better for the larger quantity.Q: Whether some samples can be provided?A: We are happy to make prototype or sample for clients to ensure quality standard, when proceed into mass production,the sample charge will be reduced in the following payment.Q: How to deal with the parts received when they are found to be in poor quality?A: Please rest assured that all our products are QC inspected and accepted with inspection report before delivery. Generally there will have no non-conformance: in case of non- conformance, please contact us immediately, take some pictures, we will check on the problems and have them reworked or repaired at the first time , the resulting costs will be our side.