Which Part is the Rim?
1 Answers
The rim, commonly known as the wheel rim or hub, is part of the wheel hub—specifically, the outer ring that directly contacts the tire. The main body of the wheel hub consists of the fixed part connecting to the axle and the spokes, which together form the wheel, collectively referred to as the hub. Below is more related information: 1. Hub Bearing: In the past, car hub bearings were mostly used in pairs as single-row tapered roller or ball bearings. With technological advancements, cars now widely use hub units. The application and usage of hub bearing units have grown significantly, evolving to the third generation. The first generation consisted of double-row angular contact bearings. The second generation featured a flange on the outer race for fixing the bearing, allowing it to be easily mounted onto the axle and secured with a nut, simplifying car maintenance. The third-generation hub bearing unit integrates the bearing unit with the anti-lock braking system (ABS). The hub unit is designed with inner and outer flanges, where the inner flange is bolted to the drive shaft, and the outer flange assembles the entire bearing. 2. Spun-Cast Wheels: Spun-cast wheels are favored by many car owners for their cost-effectiveness and the ability to avoid the design limitations imposed by the physical constraints of forging technology, unlike forged wheels. However, due to their weaker strength, they are more prone to deformation compared to forged wheels. On the other hand, spun-cast wheels exhibit high toughness, allowing them to withstand minor deformations and making them less likely to crack than forged wheels. Under similar damage conditions, they suffer less harm and can be repaired by professional manufacturers or technicians. Forged wheels, once damaged, incur higher repair costs and difficulty.
