· The Spur Gear Advantage
· Spur gears, also referred to as straight cut gears, have a number of advantages over other styles of gears. Spur gears are easy to design and produce and are also better than helical gears. Directly cut gears provide improved effectiveness because helical gears produce more heat due to the fact that they have sliding contacts between teeth which produces axial thrust. When applications need simple, simple to assemble gears, spur gears could be the ideal equipment for you. Spur gears are also known for their reliability and constant velocity ratio.
· Spur gears can be found in the next 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 very common type of gear and in many cases they will be the most price effective kind of gearing. They often have straight teeth and transmit motion & power between parallel shafts. Spur gears are used in many gadgets & industries including: Electronics, Building 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 will be the simplest kind 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, generally involute but less commonly cycloidal ), the edge of each tooth is straight and aligned parallel to the axis of rotation. These gears mesh together correctly only if suited to parallel shafts.[ Simply no axial thrust is established by the tooth loads. Spur gears are great at moderate speeds but tend to become noisy at high speeds.
Spur gears will be the most easily visualized common gears that transmit movement between two parallel shafts. Because of their shape, they are categorized as a kind of cylindrical gears. Because 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 path. Also, because of the ease of production, these gears could be made to a higher degree of precision. On the other hand, 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 teeth is named the “equipment” and the one with the smaller number of tooth is called the “pinion”.
As one of 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 teeth are produced by either involute profile or cycloidal profile. Most of the gears are produced by involute profile with 20° pressure angle. When two gears are in mesh at one immediate there is a chance to mate involute portion with non-involute portion of mating gear. This phenomenon is called “interference” and takes place when the number of teeth on the smaller of the two meshing gears is less than a necessary minimum. In order to avoid interference we can possess undercutting , but this is not a suitable solution as undercutting prospects to weakening of tooth at its foundation. In this example Corrected gears are utilized. In corrected gears Cutter rack is shifted upwards or downwards.
Spur gears are the most easily visualized common gears that transmit motion between two parallel shafts. Because of their shape, they are classified as a kind of cylindrical gears. Because the tooth surfaces of the gears are parallel to the axes of the mounted shafts, there is absolutely no thrust force produced in the axial direction. Also, because of the ease of production, these gears could be made to a high degree of precision. However, spur gears possess a disadvantage for the reason that they easily make noise. In most cases, when two spur gears are in mesh, the gear with more teeth is named the “gear” and the one with the smaller number of teeth is named the “pinion”.
The unit to point the sizes of spur gears is commonly stated, as specified by ISO, to be “module”. Recently, it is normal to set the pressure position to 20 degrees. In commercial machinery, it is most common to employ a portion of an involute curve as the tooth profile.
Even though not limited to spur gears, profile shifted gears are used when it is required to adjust the center distance slightly or to strengthen the equipment teeth. They are produced by adjusting the range between your gear cutting device called the hobbing device and the gear in the production stage. When the change can be positive, the bending power of the gear increases, while a poor shift slightly reduces the guts distance. The backlash is the play between the tooth when two gears are meshed and is necessary for the smooth rotation of gears. When the backlash is certainly too large, it leads to increased vibration and noise while the backlash that is too small leads to tooth failure due to the lack of lubrication.
All Ever-power spur gears have an involute tooth form. In other words, they are involute gears using portion of the involute curve as their tooth forms. Looking generally, the involute shape is the most wide-spread gear tooth form because of, among other reasons, the capability to absorb small middle distance errors, very easily made production tools simplify manufacturing, thicker roots of the teeth make it strong, 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, extended addendum and stub tooth profiles can be found.
Ever-power’s spur gears, which are designed to transmit motion and power between parallel shafts, are the most economical gears in the power transmission industry.
We offer both 14 1/2° and 20° PA (pressure angle), involute, and full-depth program gears. 20° PA is generally recognized as having a higher load carrying capacity; however, 14 1/2° PA gears are utilized extensively aswell. This is since the lower pressure angle reduces alter in backlash due to center range variation and concentricity errors. The 14 1/2° PA also provides a higher get in touch with ratio for smoother, quieter procedure.
Ever-power spur gears can be found through our Guaranteed Same Day Shipment from our world class manufacturing center in Hangzhou, China. Many different gears with a number of bore sizes, keyways, and setscrews are routinely in stock, but if the particular bore/keyway/setscrew mixture needed is not readily available, our machining experts can transform any non-hardened gear and deliver it within a day. Just ask!
We offer all sorts of spur gears including surface spur gears, metric spur gear, hubless spur hears, fairloc spur gears, plastic material spur gears, steel spur gears, injection molded spur gears.
· Transmits motion and power efficiently between parallel shafts.
· Our 20° PA spur gear has a high load-carrying convenience of enhanced performance.
· The 14 1/2° PA spur gear provides smooth, quiet operation.
· Spur gears are produced in Delrin, nonmetallic, brass, steel, and cast iron materials for maximum versatility.
· Non-metallic (phenolic – grade C) materials provides calm, 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. We offer regular & metric sizes, and may make spur gears in a variety of materials. Special designs can be found. Following AGMA specifications, Avon often exceeds these specifications to accommodate the intricacies of high precision gears. No specification, no detail is as well complex for Avon.
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