rotational wheel assembly is interposed between the tire and the load bearing and the axle, usually consists of two major components consisting of the rim and the spokes (GB / T2933-1995). And mounting the rim member is supported by the tire, spokes is interposed between the support member and the wheel axle on a wheel rim on the wheel. In addition to the wheel member, it may further comprise a hub. .
Wheel 1 Category
1. Press configuration of spokes: spoke wheel can be divided into the disc wheel and the spoke wheel.
2. Wheel material: can be divided into steel, aluminum, magnesium alloy wheels.
3. One end of the axle is mounted one or two tires: vehicle wheel can be divided into single and dual wheel type.
Now, the disc wheel spoke widely used on cars and trucks. In addition, off-type wheel rim wheel disc is assembled, it can be trans-mounted wheel and adjustable wheel.
2 Significance wheel identification
Tire Size: a set of tires commonly used digital representation, before a number indicates the tire section width, a represents the diameter of the rim, in inches. For example 165 / 70R14 tire width 165 mm represents, aspect ratio 70, the rim diameter of 14 inches.
The intermediate letters or symbols have special meanings: ldquo; Xrdquo; represents a high-pressure tires; ldquo; Rrdquo;, ldquo; Zrdquo; represents a radial tire; ldquo; a rdquo; represents a low-pressure tires.
levels: level refers to the cord in the tire rubber layer the nominal number of layers, is not completely consistent with the actual number of plies, is an important indicator of the strength of the tire. Level with Chinese signs, such as the 12 level; English signs, such as ldquo; 14P. Rrdquo; or 14 levels.
Wheel Size: Indicates the tire rim to match with the specifications. Facilitate the practical use, such as ldquo; standard rim 5.00Frdquo ;.
speed rating: the tire load carrying predetermined maximum speed in a predetermined condition. Letters A through Z of the tire from 4.8km / h to 300km / h speed level of authentication. Common speed level: Q: 160km / h; R: 170km / h; S: 180km / h; T: 190km / h; H: 210km / h; V: 240km / h; W: 270km / h; Y: 300km / h; Z: ZR speeds above 240km / h.