High-stability wheelchair aluminum alloy hub

 

Mechanical balance in structural design is the core of stability. Unlike the single-row ball structure of ordinary hubs, high-stability hubs adopt a double-row angular contact bearing design. Through a 15-degree inclined ball arrangement, radial impact force is distributed to both side brackets, increasing load-bearing capacity to 200 kilograms. The connection between the axle core and hub uses involute spline fitting, reducing stress concentration by 30% compared to traditional flat key connections. Even after 100,000 rotation tests, radial runout can still be controlled within 0.1 millimeters.

Continuous protection through detail optimization ensures long-lasting stability. The sealing covers at both ends of the hub use double-lip rubber seals, which not only block dust and moisture but also form a tiny air pressure difference during rotation to automatically expel internal dust. The built-in self-lubricating bearings are added with solid lubricants, maintaining smoothness even during long-term low-speed rotation and reducing vibration caused by uneven friction. These design details, like precisely interlocking gears, jointly maintain the stable operation of the hub.
    

Name	Material	Holes	Bearing Distance
High-stability wheelchair aluminum alloy hub	aluminum	24/30/36	46.5L/48L/49.5L

For users, high stability of the hub means a more reliable travel experience—reducing body shaking on bumpy roads, keeping trajectory controllable during sharp turns, and lowering maintenance frequency in long-term use. The stability within this tiny space embodies the ultimate pursuit of safety, making every rotation a promise of peace of mind and turning the wheelchair into a truly trustworthy mobility partner.