What are the anatomy of skates
The bearings of skates can be decomposed into inner ring, outer ring, cage, steel ball, and dust piece. The quality of the bearing can also be viewed from these aspects (strictly speaking, the bearing should be applicable, not just good or bad). The inner and outer rings are generally made of carbon steel or bearing steel. The cage is made of plastic or iron. The steel balls are divided into carbon steel, bearing steel, and ceramic balls. The dust-proof discs are iron or rubber. Another important concept of bearings is "clearance"-the gap between the steel ball and the channel. Below I will explain from the above aspects what kind of bearings are most suitable for use in skates.
1. From the perspective of the inner and outer rings, it is better to use bearing steel than carbon steel, because the processing accuracy of carbon steel is not as good as that of bearing steel, and the other is that carbon steel is more brittle than bearing steel. The force is radial. During the beating process, there is generally a radial force of 100-150 kg. Carbon steel is easy to crack and damage.
2. From the perspective of steel balls, bearing steel is better than carbon steel, and ceramic balls are better than bearing steel. The basis for this statement is that carbon steel is brittle. In addition, during the bearing rotation, the channel will generate high heat, and the surface of the steel will be abraded. If ceramic balls are used, the heat generation can be minimized. In addition, ceramic ball bearings do not need grease lubrication, the surface smoothness is extremely high, which is most conducive to quick start.
3. From the perspective of the cage, the lubrication of plastic is better than that of iron, but the firmness of iron is better than that of plastic, but for skate bearings, plastic is generally better than iron, because plastic is lighter. The steel ball of the skate bearing is also very small, and the plastic cage is strong enough.
4. From the perspective of the dustproof sheet, the dustproof sheet of the tin sheet is divided into a live cover and a dead cover. The live cover can be maintained by the user's own refueling.
5. In the end, the clearance is too large. If the game of the skate bearing is too large, the smoothness of the bearing will be poor. If it is too small, the starting torque will be increased.
In summary, there is a bearing that is most suitable for skate shoes: the inner and outer rings are bearing steel, the steel balls are ceramic balls, the plastic cage, the dust cover with a dead cover, and the right clearance bearing. However, the price of such bearings is very high, generally 18-25 yuan (ceramic balls are divided into white ceramics and black ceramics, white ceramics are relatively cheaper). The bearings used for more than 150-200 yuan skates on the market are generally between 0.5-1.5 yuan.
1. From the perspective of the inner and outer rings, it is better to use bearing steel than carbon steel, because the processing accuracy of carbon steel is not as good as that of bearing steel, and the other is that carbon steel is more brittle than bearing steel. The force is radial. During the beating process, there is generally a radial force of 100-150 kg. Carbon steel is easy to crack and damage.
2. From the perspective of steel balls, bearing steel is better than carbon steel, and ceramic balls are better than bearing steel. The basis for this statement is that carbon steel is brittle. In addition, during the bearing rotation, the channel will generate high heat, and the surface of the steel will be abraded. If ceramic balls are used, the heat generation can be minimized. In addition, ceramic ball bearings do not need grease lubrication, the surface smoothness is extremely high, which is most conducive to quick start.
3. From the perspective of the cage, the lubrication of plastic is better than that of iron, but the firmness of iron is better than that of plastic, but for skate bearings, plastic is generally better than iron, because plastic is lighter. The steel ball of the skate bearing is also very small, and the plastic cage is strong enough.
4. From the perspective of the dustproof sheet, the dustproof sheet of the tin sheet is divided into a live cover and a dead cover. The live cover can be maintained by the user's own refueling.
5. In the end, the clearance is too large. If the game of the skate bearing is too large, the smoothness of the bearing will be poor. If it is too small, the starting torque will be increased.
In summary, there is a bearing that is most suitable for skate shoes: the inner and outer rings are bearing steel, the steel balls are ceramic balls, the plastic cage, the dust cover with a dead cover, and the right clearance bearing. However, the price of such bearings is very high, generally 18-25 yuan (ceramic balls are divided into white ceramics and black ceramics, white ceramics are relatively cheaper). The bearings used for more than 150-200 yuan skates on the market are generally between 0.5-1.5 yuan.