When a vehicle turns, the wheels on both sides naturally need to rotate at different speeds. The outer wheel travels a longer distance, while the inner wheel moves a shorter distance. An automotive differential gear system makes this possible by distributing power smoothly while allowing each wheel to rotate at the speed it needs. For […]
Small pits on a bevel gear tooth are often blamed on poor material or low hardness. Those are possible causes, but they are rarely the only ones. Pitting usually develops when repeated contact stress acts on a local area that is carrying more load than expected. The contact pattern, mounting position, lubrication, tooth finish, heat […]
Two gears can rotate normally and still have less-than-ideal meshing conditions. Besides module, tooth count, pressure angle, center distance and tooth form, gear contact ratio is another important parameter for evaluating whether a gear pair can transmit motion continuously and smoothly. In simple terms, contact ratio describes how many pairs of teeth are involved in transmitting […]
On gear drawings, pressure angle values such as 14.5°, 20°, and 25° often appear alongside module, tooth count, and other basic geometry. Although it looks like a simple angle, it affects the tooth profile, meshing behavior, tooth-root strength, and load direction within a gear pair. Among modern involute gears, 20° is widely used as a standard […]
Introduction A cylindrical gear vs bevel gear comparison starts with the shaft layout. If the shafts are parallel, spur or helical gears are usually the starting point. If their axes intersect, bevel gears may suit the drive. The next question is whether that arrangement can handle the load within the available space. For buyers working […]
Introduction A hypoid gear set differs from a conventional bevel gear in one important way: the pinion axis and gear axis do not intersect. The shortest distance between those axes is the hypoid gear offset. It may look like a simple layout dimension, but it influences pinion geometry, tooth contact, sliding, lubrication, and the final […]
Introduction Ground spiral bevel gears are not necessary for every application. In many industrial drives, a properly cut, heat-treated, and lapped gear set can already meet the required accuracy, contact, and running performance. At Wenlio, the finishing route is selected according to the actual gear and application requirements. Grinding becomes more valuable when tighter post-heat-treatment […]
Introduction Not every bevel gear supplier is a good fit for every project. A company that can produce a standard straight bevel gear may not necessarily be the right choice for a spiral bevel, hypoid, or matched-pair project with defined contact and inspection requirements. Before sending an RFQ, it helps to check whether the supplier’s […]
Introduction Spiral bevel gear noise does not always mean there is a manufacturing problem. A new assembly, shim adjustment, bearing change, shaft-position shift, or even a difference between expected and actual load conditions can alter the contact pattern, backlash, or mounting condition and change how the gear set sounds. A more useful approach is to […]
Introduction Gear milling and hobbing are often compared as if one simply replaces the other. In practice, the drawing usually decides. A prototype with a shoulder close to the teeth may be easier to mill, while a standard external spur gear made in recurring batches may be a straightforward hobbing job. Quantity matters, but it […]