In our previous life, as long as it is to travel that is inseparable from 28 bicycle, the most famous bike that is at the time of the s flying pigeon bicycle, but also resistant to ride, take a four or five individuals that is no problem, now a lot of bicycle basic with no people, and riding for a period of time the car will happen gaga's voice.
Later through the answer to understand the bearing problem, it is necessary to remove the bad bearing and replace the new bearing, this is why the previous bicycle is resistant to riding and now the bicycle always bearing problems that? What is the working principle of bearings?
Front and rear wheel bearings are outer ring rotation, equivalent to double row angular contact ball bearings. Rear wheel bearing mainly bears rotating load; The front wheel bearings mainly bear fixed loads.
Bicycle is a chain drive, the pedal drives the front sprocket, transferred to the rear sprocket, the chain gives the rear wheel a torque, driving the rear wheel rotation, the rear wheel and the bearing ring is fixed together, the steel ball rotation and revolution, the inner ring static. The forward force gives the front wheel a torque. The outer ring of the front wheel bearing rotates with the front wheel. The steel ball rotates and revolutions to walk forward.
When turning, the front wheel bearing bears tilting torque on one side.
Because the bearing is installed above a safety clutch (star wheel, ball, spring, etc.), When pedaling forward, there is a spring against the ball so that the bearing and the gear chain run synchronously, when backward, the spring is squeezed to shorten, ball back, so the chain gear after turning, the bearing (wheel) does not turn.
Pedal part is assembled on the left and right crank of the central shaft part, which is a device that converts the flat power into rotary power. When riding a bicycle, the pedal force is first transmitted to the pedal part, and then the pedal shaft rotates the crank, tooth plate, central shaft, chain flywheel, so that the rear wheel rotates, thus making the bicycle forward.
Therefore, whether the structure and specifications of pedal parts are appropriate will directly affect whether the position of rider's foot is appropriate and whether the driving of bicycle can be carried out smoothly.
Shandong Xuanye Precision Machinery Co. , Ltd. is located in the beautiful city of Jinan, Shandong. With a history of 20 years, the registered capital of the company is 20 million yuan, is a large bearing enterprise.
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