Solid tires are connected to the vehicle through the rim or hub. They support the vehicle, transmit power, torque and braking force, so the cooperation between the solid tire and the rim (hub) plays a vital role. If the solid tire and the rim (hub) are not properly matched, serious consequences will occur: if the fit is too tight, it will be difficult to press the tire and may even cause tire deformation and damage, such as the wire ring breaking, and the tire hub will be damaged and lose its use value; If it is loo
The Pneumatic tire rim solid tires are combined through the interference fit between the tire hub and the bottom of the rim and the clamping effect of the rim side. The rubber has stretchable and compressible properties. The appropriate interference size makes the tire rim tighter. . Usually the base width of the tire is slightly larger than the width of the rim by 5-20mm, while the inner size of the hub is slightly smaller than the outer diameter of the rim by 5-15mm. This value will vary depending on the formula and structure, as well as the rim model. The hardness of the rubber is low. If the compression deformation is large, the value will be slightly larger, and vice versa. For tires with the same specifications, different rims are used, and the inner dimensions of the hub are also different. For example, the same 7.00-15 rim, flat bottom rim and semi-deep groove rim If the outer diameter of the tire is different, the inner size of the tire hub will also be different. Otherwise, there will be problems with the fit of the rim and tire.
The press on solid tire and wheel hub are an interference fit between metal and metal, and will not have as large a fit size as rubber and metal fit. Usually the machining tolerance of the outer diameter of the wheel hub is the nominal inner diameter of the tire + 0.13/-0mm. The inner diameter of the tire’s steel ring varies according to the specifications. It is usually 0.5-2mm smaller than the nominal inner diameter of the tire. These dimensions are in the technical standards of press on solid tires. There are detailed regulations in .
In summary, the base size of a solid tire is its important technical data and an important indicator of the performance of the solid tire. It must be given sufficient attention during design, manufacturing, installation and use.
Post time: 02-11-2023