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Home > Sporting Goods & Recreation > Scooters & Parts > Scooter Parts & Accessories > Precision CNC Machining Hardened Steel Axles Electric Skateboard Durable Axles

Precision CNC Machining Hardened Steel Axles Electric Skateboard Durable Axles

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US$ 1.4 - 8 MOQ: 1 Piece

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Dongguan Bomei Precision Machining Co., Ltd

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Port of Shipment:

Shenzhen

Delivery Detail:

15 days

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High-strength truck axles fabricated via precision CNC machining using 42CrMo hardened steel—engineered for superior load-bearing capacity, impact resistance, and wear durability, ideal for high-performance electric skateboard (e-skate) truck assemblies and longboard suspension systems.

Parameter	Key Details
Material	42CrMo Alloy Steel: High tensile strength (≥1080 MPa after quenching & tempering), excellent hardenability, and fatigue resistance; core hardness 30–35 HRC for toughness, surface hardness 58–62 HRC after induction hardening to resist wear from wheel rotation.Material Advantages: Outperforms standard steel in withstanding e-skate acceleration torque and downhill impact loads; low deformation rate ensures stable wheel alignment during high-speed riding.
Processing Capabilities	CNC Turning & Milling: Precision machining of axle shafts, thread sections (M8–M12), kingpin holes, and mounting flats; tolerance control for smooth fit with skateboard truck hangers and bushings.Induction Hardening: Localized surface hardening of wheel contact areas to 58–62 HRC; enhances wear resistance without compromising core toughness (prevents axle snapping under impact).Grinding & Polishing: Precision cylindrical grinding (surface roughness Ra ≤0.2μm) for friction reduction between axle and wheel bearings; deburring of thread edges to prevent bushing damage during assembly.Quality Testing: 100% dimensional inspection via CMM; hardness testing (Rockwell scale); torque testing to verify load capacity (supports up to 150kg rider weight + e-skate frame weight).
Tolerance & Precision	Axle diameter tolerance ±0.005–±0.01mm (critical for bearing fit); thread pitch tolerance ±0.003mm; kingpin hole concentricity ≤0.01mm; axle straightness ≤0.02mm/m; ensures smooth wheel rotation and no lateral wobble during high-speed riding; compliant with ISO 9001 machining standards.
Compatibility	Fits standard electric skateboard trucks (150mm–215mm hanger width), longboard trucks, and custom e-skate suspension systems; compatible with 608zz/608rs skateboard bearings; supports kingpin-based truck adjustments (tight for stability, loose for maneuverability); axle length customizable for single-wheel/double-wheel e-skate configurations.

Application Scenarios

High-Speed Electric Skateboards: 42CrMo hardened steel axles—induction-hardened surface resists wear from 50km/h+ wheel rotation, high tensile strength withstands downhill torque loads, precise tolerance ensures stable handling at top speeds.
Heavy-Duty E-Skate Load Carriers: Reinforced CNC-machined axles—supports up to 150kg payload (rider + cargo), impact resistance handles rough urban terrain (curb drops, potholes), black oxide finish prevents rust from rain and road moisture.
Custom Longboard Conversion Kits: Custom-length 42CrMo axles—tailored to fit aftermarket truck hangers, compatible with brushless motor mounts, polished surface reduces bearing friction for longer battery life.
Racing E-Skateboards: Precision-ground axles—ultra-tight tolerance eliminates wheel wobble during competitive races, induction hardening extends service life under repeated high-stress acceleration/deceleration cycles.