· The Spur Gear Advantage
· Spur gears, also known as directly cut gears, have a number of advantages over other types of gears. Spur gears are easy to design and manufacture and are also better than helical gears. Directly cut gears provide increased effectiveness because helical gears generate more heat due to the fact they have sliding contacts between teeth which creates axial thrust. When applications need simple, easy to assemble gears, spur gears may be the ideal gear for you personally. Spur gears are also known for their reliability and constant velocity ratio.
· Spur gears can be found in the following sizes / capacities:
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Optimum Pitch Diameter / Max 30.0″
Diametral Pitch / From 3.0 to 180 degrees
Face Width / Max 13.0″
Cut Tooth / AGMA Q11
Available Spur Gear Materials
· Steel
· Tool steel
· Heat-treated steel
· Brass
· Bronze
· Copper
· Cast iron
· Fiber
· Plastic

· Spur gears are a extremely common type of gear and perhaps they will be the most cost effective type of gearing. They generally have straight the teeth and transmit motion & power between parallel shafts. Spur gears are used in many gadgets & industries including: Electronics, Construction equipment, Machine equipment, Conveyors and Materials handling. They are usually not used in auto applications because they may be noisy.
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Spur gears or straight-cut gears are the simplest type of gear. They consist of a cylinder or disk with the teeth projecting radially. Though the teeth aren’t straight-sided (but generally of special form to achieve a constant drive ratio, primarily involute but less commonly cycloidal ), the edge of each tooth is directly and aligned parallel to the axis of rotation. These gears mesh collectively correctly only if fitted to parallel shafts.[ No axial thrust is created by the tooth loads. Spur gears are great at moderate speeds but tend to end up being noisy at high speeds.
Spur gears will be the most easily visualized common gears that transmit motion between two parallel shafts. Because of their shape, they are classified as a type of cylindrical gears. Since the tooth areas of the gears are parallel to the axes of the mounted shafts, there is no thrust force generated in the axial path. Also, due to the simple production, these gears can be made to a higher degree of precision. However, spur gears possess a disadvantage for the reason that they easily make noise. Generally speaking, when two spur gears are in mesh, the apparatus with more the teeth is named the “gear” and the one with small number of the teeth is called the “pinion”.
Among the many professional spur gear manufacturers and suppliers in China, we warmly welcome you to get or wholesale bulk spur gear manufactured in China here from our factory.
Spur gear the teeth are produced by either involute profile or cycloidal profile. The majority of the gears are manufactured by involute profile with 20° pressure angle. When two gears are in mesh at one instant there is a opportunity to mate involute portion with non-involute portion of mating gear. This phenomenon is called “interference” and happens when the amount of teeth on small of the two meshing gears is less than a required minimum. In order to avoid interference we can possess undercutting , but this is simply not a suitable alternative as undercutting potential clients to weakening of tooth at its foundation. In this example Corrected gears are utilized. In corrected gears Cutter rack is definitely shifted upwards or downwards.
Spur gears will be the most easily visualized common gears that transmit motion between two parallel shafts. Because of their shape, they are categorized as a kind of cylindrical gears. Since the tooth areas of the gears are parallel to the axes of the mounted shafts, there is absolutely no thrust force generated in the axial direction. Also, due to the ease of production, these gears could be made to a higher degree of precision. However, spur gears possess a disadvantage in that they quickly make noise. In most cases, when two spur gears are in mesh, the gear with more the teeth is called the “equipment” and the main one with small number of the teeth is called the “pinion”.
The unit to point the sizes of spur gears is often stated, as specified by ISO, to be “module”. In recent years, it is usual to create the pressure position to 20 degrees. In commercial machinery, it is most common to use a portion of an involute curve as the tooth profile.
Even though not really limited by spur gears, profile shifted gears are utilized when it is required to adjust the guts distance slightly or to strengthen the equipment teeth. They are made by adjusting the distance between your gear cutting device called the hobbing device and the apparatus in the creation stage. When the change is positive, the bending power of the gear increases, while a negative shift somewhat reduces the guts distance. The backlash is the play between the the teeth when two gears are meshed and is necessary for the even rotation of gears. When the backlash is too big, it leads to improved vibration and noise as the backlash that’s too small leads to tooth failure due to the lack of lubrication.
All Ever-power spur gears have an involute tooth shape. Basically, they are involute gears using section of the involute curve as their tooth forms. Searching generally, the involute shape may be the most wide-spread equipment tooth form because of, among other factors, the capability to absorb small center distance errors, easily made production tools simplify manufacturing, solid roots of the teeth make it solid, etc. Tooth form is often referred to as a specification in drawing of a spur gear as indicated by the height of teeth. In addition to standard complete depth teeth, prolonged addendum and stub tooth profiles exist.
Ever-power’s spur gears, which are designed to transmit motion and power between parallel shafts, are the most economical gears in the energy transmission industry.
You can expect both 14 1/2° and 20° PA (pressure position), involute, and full-depth system gears. 20° PA is generally recognized as having a higher load carrying capacity; however, 14 1/2° PA gears are used extensively aswell. This is since the lower pressure position reduces modify in backlash because of center range variation and concentricity mistakes. The 14 1/2° PA also provides a higher contact ratio for smoother, quieter procedure.
Ever-power spur gears are available through our Guaranteed Same Time Shipment from the world class manufacturing center in Hangzhou, China. Many different gears with a variety of bore sizes, keyways, and setscrews are routinely in share, but if the particular bore/keyway/setscrew combination needed is not easily available, our machining experts can alter any non-hardened gear and ship it within a day. Just ask!
We offer all sorts of spur gears including ground spur gears, metric spur equipment, hubless spur hears, fairloc spur gears, plastic-type material spur gears, steel spur gears, injection molded spur gears.
· Transmits movement and power efficiently between parallel shafts.
· Our 20° PA spur gear includes a high load-carrying convenience of enhanced performance.
· The 14 1/2° PA spur gear offers smooth, quiet operation.
· Spur gears are manufactured in Delrin, non-metallic, brass, metal, and cast iron materials for maximum versatility.
· Non-metallic (phenolic – grade C) materials provides quiet, corrosion resistant operation.
· Custom Spur Gears
· Ever-power customized spur gears & internal spur gears in a number of designs and sizes. We focus on spur gears & gear drives that can meet exacting specifications and tolerances. You can expect regular & metric sizes, and will make spur gears in a number of materials. Special designs can be found. Following AGMA specifications, Avon frequently exceeds these standards to support the intricacies of high precision gears. No specification, no detail is as well complex for Avon.
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