Xiangxing Xin supplies CNC Machined Internal Spline Sleeve components for assemblies requiring a mating external spline. The internal teeth form the connection interface, while the outside diameter and end faces can serve as mounting or locating surfaces according to the design.
Customization focuses on spline geometry and its relationship to the sleeve body. Customers can specify tooth count, tooth profile, effective engagement length, fit, and the position of the spline axis relative to external datums. Whether the connection is fixed or permits axial sliding must also be defined.
The manufacturing route is selected after reviewing the spline specification, bore accessibility, material condition, and order quantity. Heat treatment and surface finishing, where required, are considered together with dimensional allowances and final inspection requirements.
| Parameter | Description |
| Product Structure | Cylindrical sleeve with internal spline profile and entry chamfer |
| Material Options | Carbon steel, alloy steel, stainless steel, aluminum alloy, brass, or copper, subject to application review |
| Outside Diameter / Length | Customized to drawing |
| Spline Profile | Involute, straight-sided, or other specified profile, subject to engineering review |
| Spline Specification | Applicable standard and complete designation supplied by customer |
| Tooth Parameters | Tooth count, module or diametral pitch, pressure angle where applicable, and specified inspection dimensions |
| Engagement Length | Defined according to the mating shaft and assembly requirements |
| Fit Requirements | Centering method, fit class, and backlash or sliding requirements as specified |
| Geometric Requirements | Spline-axis relationship to outside diameter and end-face datums, as specified |
| Heat Treatment | Process, hardness, and effective case depth where applicable, confirmed by material and design |
| Surface Treatment | As-machined or agreed treatment compatible with the material and fit |
| Edge Conditions | Entry chamfers and deburred spline edges according to drawing |
| Inspection | Body dimensions, spline acceptance, geometric requirements, and surface condition |
| Order Support | Samples, small batches, and repeat production |
The internal tooth profile mates with a corresponding external spline. Tooth geometry, engagement length, and fit are defined around the connection requirements.
The cylindrical outside surface and end faces can be assigned as assembly datums. Their relationship to the spline axis is controlled where specified on the drawing.
The entrance chamfer provides a lead-in for assembly. Chamfer size and tooth-edge conditions can be specified to suit the mating shaft and installation method.
Material selection, heat treatment, and surface treatment are reviewed together. Where treatment changes dimensions or causes distortion, the production plan considers allowances and subsequent finishing.
Confirm the spline designation, mating-shaft information, engagement length, fit, material, and inspection requirements. Clarify any missing tooth-profile parameters before manufacturing.
Prepare a suitable blank and machine the outside diameter, end faces, and preliminary bore. Establish datums and leave allowances for later operations where required.
For the CNC Machined Internal Spline Sleeve, evaluate broaching, gear shaping, wire EDM for accessible through profiles, or another suitable method. The selected route depends on geometry, material, quantity, and tooling requirements.
Arrange specified heat treatment or surface treatment at the appropriate production stage. Complete any required finishing operations and remove burrs without altering the intended tooth profile.
Please provide the complete spline designation and applicable standard, together with tooth count, engagement length, fit requirements, and relevant inspection dimensions. If no standard designation is available, send a detailed tooth-profile drawing and mating-shaft information for review.
We can evaluate the project using the shaft drawing, spline data, or a physical sample. A sample can assist with measurement and fit verification, but the final manufacturing and acceptance requirements should be agreed before production.
Heat treatment can be evaluated according to the selected material and required properties. Please specify hardness and, where applicable, case depth. Treatment sequence, machining allowances, and final inspection will be reviewed around the required fit.
Xiangxing Xin supports starting with one sample for custom machined components. For internal splines, dedicated tooling or gauges may affect sample cost and the most economical production quantity.
After engineering review, material and labor costs may be charged initially and refunded in full when a subsequent production order is placed, as confirmed in the quotation. Any dedicated spline tooling or gauge charges will be identified separately, including whether they qualify for a refund.
Please send a PDF or DWG/DXF drawing and, where available, a STEP or IGES model. Include material, quantity, spline specification, critical tolerances, heat treatment, and surface requirements. A mating-shaft drawing or sample is helpful for reviewing the connection.
Xiamen Xiangxing Xin Industry and Trade Co., Ltd. reviews spline geometry, mating requirements, and datum relationships to clarify manufacturing and inspection criteria before production.
Turning of the sleeve body is coordinated with the selected internal-spline process. Tooling needs, machining access, and order quantity are considered when preparing the production plan.
Critical inspection items can cover body dimensions, spline fit, and the relationship between internal and external features. Material certificates and dimensional reports can be arranged according to the order.
Samples can be used to verify fit before batch production. Confirmed drawings, approved samples, and agreed inspection criteria provide a reference for repeat orders. Our company holds ISO 9001 and IATF 16949 quality management system certifications.
Send Xiangxing Xin your CNC Machined Internal Spline Sleeve drawing, mating-shaft details, and expected quantity for engineering review and quotation.
Address
No. 168 Tonglian Road, Hugan Village, Xinmin Town, Tongan District, Xiamen
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