· The Spur Gear Advantage
· Spur gears, also known as straight cut gears, have several advantages over other types of gears. Spur gears are simple to design and manufacture and are also more efficient than helical gears. Straight cut gears provide improved performance because helical gears create 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 personally. Spur gears are also known for his or her reliability and constant velocity ratio.
· Spur gears can be found in the following sizes / capacities:
Maximum 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 the teeth and transmit motion & power between parallel shafts. Spur gears are used in many products & industries including: Electronics, Construction equipment, Machine tools, Conveyors and Material handling. They are usually not used in auto applications because they may be noisy.

Spur gears or straight-cut gears will be the simplest kind of gear. They contain a cylinder or disk with teeth projecting radially. Although teeth are not straight-sided (but generally of special form to achieve a constant drive ratio, mainly involute but less generally cycloidal ), the edge of every tooth is directly and aligned parallel to the axis of rotation. These gears mesh together correctly only if fitted to parallel shafts.[ No axial thrust is established by the tooth loads. Spur gears are great at moderate speeds but tend to be 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 categorized as a type of cylindrical gears. Because the tooth areas of the gears are parallel to the axes of the installed shafts, there is absolutely no thrust force produced in the axial path. Also, due to the simple production, these gears can be made to a higher degree of precision. However, spur gears have a disadvantage for the reason that they quickly make noise. In most cases, when two spur gears are in mesh, the gear with more the teeth is called the “gear” and the one with small number of teeth is called the “pinion”.
Among the most professional spur gear manufacturers and suppliers in China, we warmly welcome you to get or wholesale mass spur gear manufactured in China here from our factory.
Spur gear the teeth are manufactured 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 instant there is a opportunity to mate involute portion with non-involute part of mating equipment. This phenomenon is known as “interference” and takes place when the amount of teeth on small of the two meshing gears is less than a needed minimum. To avoid interference we can possess undercutting , but this is simply not a suitable remedy as undercutting prospective customers to weakening of tooth at its base. In this situation Corrected gears are used. 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 the shape, they are classified as a kind of cylindrical gears. Since the tooth surfaces of the gears are parallel to the axes of the installed shafts, there is absolutely no thrust force produced in the axial direction. Also, because of the ease of production, these gears can be made to a high degree of precision. However, spur gears possess a disadvantage in that they very easily make noise. Generally speaking, when two spur gears are in mesh, the apparatus with more teeth is called the “gear” and the one with small number of teeth is named the “pinion”.
The unit to indicate the sizes of spur gears is commonly stated, as specified by ISO, to be “module”. In recent years, it is typical to set the pressure angle 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 utilized when it is necessary to adjust the guts distance slightly or even to strengthen the gear teeth. They are made by adjusting the distance between your gear cutting tool called the hobbing device and the gear in the production stage. When the shift is definitely positive, the bending strength of the apparatus increases, while a negative shift somewhat reduces the guts distance. The backlash may be the play between the teeth when two gears are meshed and is needed for the clean rotation of gears. When the backlash can be too big, it leads to improved vibration and noise while the backlash that is too little leads to tooth failing due to the lack of lubrication.
All Ever-power spur gears have got an involute tooth shape. Basically, they are involute gears using area of the involute curve as their tooth forms. Looking generally, the involute form may be the most wide-spread equipment tooth form because of, among other reasons, the ability to absorb small center distance errors, quickly made production tools simplify manufacturing, thick roots of the teeth make it solid, etc. Tooth form is often described as a specification in drawing of a spur equipment as indicated by the height of teeth. In addition to standard complete depth teeth, extended addendum and stub tooth profiles exist.
Ever-power’s spur gears, which are made 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 angle), involute, and full-depth program gears. 20° PA is generally recognized as having a higher load carrying capacity; nevertheless, 14 1/2° PA gears are used extensively as well. This is since the lower pressure angle reduces modify in backlash due to center distance variation and concentricity mistakes. The 14 1/2° PA also provides a higher get in touch with ratio for smoother, quieter operation.
Ever-power spur gears can be found through our Guaranteed Same Time Shipment from our world class manufacturing middle in Hangzhou, China. Many different gears with a variety of bore sizes, keyways, and setscrews are routinely in share, if the particular bore/keyway/setscrew combination needed is not readily available, our machining professionals can alter any non-hardened equipment and ship it within 24 hours. Just ask!
We offer all types of spur gears including surface spur gears, metric spur equipment, hubless spur hears, fairloc spur gears, plastic-type 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, metal, and cast iron materials for maximum versatility.
· Non-metallic (phenolic – grade C) materials provides silent, corrosion resistant operation.
· Custom Spur Gears
· Ever-power custom spur gears & internal spur gears in a variety of designs and sizes. We focus on spur gears & gear drives that can meet exacting specs and tolerances. We offer standard & metric sizes, and may make spur gears in a variety of materials. Special designs can be found. Following AGMA specs, Avon often exceeds these specifications to support the intricacies of high precision gears. No specification, no detail is too complex for Avon.