Withdrawal sleeves can be used to mount bearings with a tapered bore onto the cylindrical seat of stepped shafts. The sleeve is pressed into the bore of the bearing inner ring, which abuts a shaft shoulder or similar fixed component. The sleeve is located on the shaft by a nut or an end plate. KM or HM lock nuts with appropriate locking devices are suitable.
Recommends using a hydraulic nut to press the withdrawal sleeve into the bearing bore, as a considerable amount of force is required to overcome the friction between the bearing, sleeve and shaft.
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The choice of tires should be based on the vehicle's load (different carcass strength), wheel position (pattern, width of the driving surface), road conditions (pattern, tread rubber formula is different), high speed or short distance and other information to choose from, the most important of which It is necessary to combine the use of the vehicle environment, that is, to grasp the "what road to use what tire" principle.
The vacuum tyres that have emerged in recent years have won the favor of drivers because of their outstanding performance and stability.
â— Definition of vacuum tyres People often refer to tubeless tyres (TUBELESS) as “vacuum tyresâ€. As the name implies, tyres without inner tubes are used. A rubber sealing layer of about 2 to 3 mm thick is attached to the inner wall of the tire, and a self-adhesive layer (as shown in the figure) made of a special mixture of unvulcanized rubber is attached to the underside of the sealing layer. The airtight layer between the inner wall of the tire and the bead ensures good airtightness between the tire and the rim, thereby replacing the function of the traditional inner tube. The outer tube also functions as an inner tube. After the tire is inflated, the toe and the rim are tightly combined, effectively avoiding discouraged.
Currently on the market, vacuum tyres are composed of Michelin, Bridgestone and other foreign brands and Zhengxin, Jiatong, Chaoyang and other domestic brands. The tires of foreign brands are more wearable and have a longer life, but they are also more expensive. Domestic brands also accounted for half of the price advantage.
When an ordinary steel wire tire is replaced with a vacuum tire, because the structure of the rim part is different, it is also necessary to replace the matching wheel hub. An ordinary vacuum tire with special wheels, probably between 2800 yuan -3600 yuan, if the entire vehicle is replaced with a cost is still quite high. However, if it is used normally, self-weight can reduce fuel consumption, and it can also save a lot of money. The lifespan of vacuum tires is longer, and the overall use of vacuum tires is more cost-effective.
Semi-trailer trucks are generally long-distance running at high speeds. The use of vacuum tires can improve safety and save a lot of costs. The dump trucks are not always in good driving conditions, so dump trucks are not suitable for vacuum tyres.
Thousands of miles begins with a single step. A trailer tire is like a shoe we wear. Choosing the right tire is like putting on a comfortable shoe. Tire affects the comfort, safety and fuel consumption of the trailer, and its importance is self-evident.