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High Precision CNC Machining Lightweight Steel Splined Spool Custom Racing Differential Component
US$2.36-11.56
1 Piece
Sample price:US$50.00/piece.Request sample
Product profile
Customization
AvailableApplication
Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery AccessoryStandard
GB, EN, China GB Code, JIS Code, TEMA, ASME, ISO9001,IATF16949Surface Treatment
Anodizing, Polishing, Plating, Heat Treatment, etcProduction Type
Mass ProductionMachining Method
CNC MachiningMaterial
Nylon, Steel, Brass, Alloy, Copper, Aluminum, IronQualiy Control
Professional QC Stuff, SpectrographApplication Industry
Sensor, Automotive, Automation, InstrumentTolerance
0.001 - 0.01mmQC System
100% Inspection Before ShipmentLead Time
Within 10~30 DaysShipping
Express/Air/SeaBusiness Type
FactoryOEM/ODM
AcceptableMaterials Available Machining
Aluminum, Brass, Stainless SteelTransport
DHL, UPS, FedEx or as Your RequestMicro Machining or Not
Micro MachiningCNC Machining or Not
CNC MachiningLogo
CustomizedModel Number
Non-StandardTransport Package
Paper, EPE Foam, PP Bag, Carton Box, CustomizedTrademark
dazaoOrigin
XiamenHS Code
7418200000Production Capacity
3000000Key features
Machined on multi-axis CNC turn-mill centers to ensure perfect concentricity between the bearing journals and the internal splines.
Forged from high-tensile alloy steel (4140/8620 chromoly) to reliably absorb massive shock loads during drag racing or drifting.
Broached to micro-level tolerances for a zero-play, snug interface with the axle shafts, preventing premature wear.
Features optimized structural pocketing that shaves off rotating mass to maximize throttle responsiveness without sacrificing ultimate strength.
Induction hardened and finished with a durable black oxide coating for superb surface fatigue resistance and rust protection.
Drilled and counterbored with absolute positioning accuracy to ensure seamless ring gear mounting and equal torque distribution.
100% customizable to your technical prints or physical samples, allowing flexible adjustments to spline counts, lengths, and bolt dimensions.
Provides an all-in-house solution covering raw material forging, precision CNC turning, spline broaching, heat treating, and balance inspection.
Company profile
Business Type: Manufacturer/FactoryAverage Response Time: ≤2.11h
AI-Powered supplier vetting
SummaryThe supplier demonstrates established export experience, documented service and quality procedures, and broad engineering and customization capabilities. It reports ISO9001:2015 and RoHS certifications, recent new-product development, ODM/OEM services, private mold design, 3D design, and customization from samples. Production covers CNC machining, CNC milling, die casting, injection molding, and sheet metal parts, supported by two quality inspectors. Service coverage has limitations: no overseas warehouse, showroom, agents, or branches, and no available SDK. Financial information is represented only by reporting years, so financial credibility cannot be assessed from the provided evidence.
Supplier typeThe supplier identifies itself as a professional technical supplier and provides OEM/ODM services, including services for well-known brands. Its manufacturing scope includes CNC machining, milling, die casting, injection molding, and sheet metal parts, while exports account for 71%–90% of total sales and export activity has continued for 17 years.
CertificationsThe supplier reports an ISO9001:2015 management-system certificate and RoHS product compliance certification. These certifications provide explicit evidence of formal quality management and product compliance coverage.
After-Sales capabilityThe supplier has written procedures and followed records for handling customer complaints and corrective and preventive actions. However, it reports no overseas warehouse, showroom, agent, or branch, and lists zero countries with overseas services, indicating documented support processes but limited overseas service infrastructure.
R&D capabilityThe supplier reports one R&D patent, new product development during the past year, private mold design, 3D software design, ODM services, and OEM services for well-known brands. Its R&D capability is not fully comprehensive because no usable SDK is available.
Production capacityProduction covers CNC machining, CNC milling, die casting, injection molding, and sheet metal spare parts, with two quality assurance and quality control inspectors. Finished-product inspection follows written instructions uniformly, and the supplier reports 17 years of exporting experience with 71%–90% export sales.
Customization capabilityThe supplier explicitly provides customization from samples and supports private mold design, 3D software design services, and professional technical development. These capabilities directly support customized product development.
Client casesThe supplier reports OEM service for well-known brands and participation in the Hannover Industrial Exhibition. It also has 17 years of export experience and accepts multiple international trade and payment terms, but no specific customer names or verifiable case details are provided.
Product Q&A
Q:What are the main benefits of using a solid steel spool instead of a traditional limited-slip differential (LSD)?
A:
racing communities choose a solid steel spool because it mechanically locks both axles together permanently, providing 100% predictable traction, whereas LSDs can experience clutch wear, lag, or uneven power transfer during hard drifting or drag launches.
Q:Spools undergo immense stress during hard launches. How do your spools prevent axle snapping or splines stripping?
A:
A major pain point is stripped splines under high horsepower. We use aircraft-grade billet alloy steel coupled with precision internal broaching and rigorous induction hardening, guaranteeing the splines can handle brutal shock loads without stripping or deforming.
Q:A solid steel piece adds rotating mass. How do you address the sluggish throttle response often discussed online?
A:
To solve the rotating mass issue, our CNC engineering team integrates strategic weight-reduction windows and pocketing into the spool body, minimizing rotational inertia for snappy throttle response while preserving absolute structural strength.
Q:Some aftermarket studs tend to spin inside the hub when tightening. How do you prevent this?
A:
Stud spinning occurs when the splines (knurl diameter) do not tightly match the hub hole, often due to a worn hub. We accept custom knurl diameter requests based on your technical drawings, ensuring a perfect press-fit that locks securely into the hub flange without the need for tack welding.
Q:Can we order these spools with custom spline counts and specific bolt circles for rare or custom axles?
A:
Yes, absolutely. As a professional CNC machining facility, we fully support processing according to your technical drawings or physical samples, allowing you to customize the internal spline count (28T, 31T, 35T, 40T), knurl specs, and mounting hole configurations.
Send Inquiry
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Xiamen Dazao Machinery Co., Ltd.
Xiamen Dazao Machinery Co., Ltd.*Content:
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