Spur gear

· The Spur Gear Advantage
· Spur gears, also called straight cut gears, have several advantages over other styles of gears. Spur gears are simple to design and produce and are also more efficient than helical gears. Straight cut gears provide improved efficiency because helical gears produce more heat because of the fact that they have sliding contacts between tooth which produces axial thrust. When applications require simple, simple to assemble gears, spur gears could be the ideal equipment for you. Spur gears are also known because of their reliability and continuous velocity ratio.
· Spur gears are offered in the next 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 certainly are a very common kind of gear and in many cases they are the most price effective kind of gearing. They often have straight tooth and transmit movement & power between parallel shafts. Spur gears are found in many devices & industries including: Electronics, Building equipment, Machine tools, Conveyors and Material handling. They are typically not used in automotive applications because they could 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. Though the teeth are not straight-sided (but usually of special type to achieve a continuous drive ratio, mainly involute but less frequently cycloidal ), the edge of every 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 excellent at moderate speeds but have a tendency to become noisy at high speeds.
Spur gears are the most easily visualized common gears that transmit movement between two parallel shafts. Because of the shape, they are categorized as a kind of cylindrical gears. Because 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 could be made to a high degree of precision. On the other hand, spur gears have a disadvantage in that they quickly make noise. In most cases, when two spur gears are in mesh, the gear with more teeth is called the “equipment” and the main one with the smaller number of teeth is named the “pinion”.
As one of the the majority of professional spur gear producers and suppliers in China, we warmly welcome you to buy or wholesale mass spur gear made in China here from our factory.
Spur gear 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 quick there is a possibility to mate involute part with non-involute part of mating equipment. This phenomenon is known as “interference” and occurs when the number of teeth on the smaller of both meshing gears is significantly less than a necessary minimum. To avoid interference we can have undercutting , but this is not a suitable remedy as undercutting leads to weakening of tooth at its base. In this situation Corrected gears are used. In corrected gears Cutter rack is certainly shifted upwards or downwards.
Spur gears are the most easily visualized common gears that transmit movement between two parallel shafts. Because of the shape, they are classified as a type of cylindrical gears. Because the tooth surfaces of the gears are parallel to the axes of the installed shafts, there is no thrust force produced in the axial path. Also, because of the simple production, these gears can be made to a high degree of precision. On the other hand, spur gears have a disadvantage for the reason that they easily make noise. Generally speaking, when two spur gears are in mesh, the apparatus with more tooth is named the “gear” and the one with the smaller number of tooth is named the “pinion”.
The unit to indicate the sizes of spur gears is commonly stated, as specified by ISO, to be “module”. Recently, it is typical to set the pressure angle to 20 degrees. In commercial machinery, it really is most common to employ a part of an involute curve as the tooth profile.
Even though not limited to spur gears, profile shifted gears are used when it is necessary to adjust the center distance slightly or even to strengthen the gear teeth. They are produced by adjusting the range between the gear cutting tool called the hobbing tool and the gear in the production stage. When the shift is definitely positive, the bending strength of the apparatus increases, while a poor shift slightly reduces the center 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 large, it leads to increased vibration and noise while the backlash that is too little leads to tooth failing because of the lack of lubrication.
All Ever-power spur gears possess an involute tooth form. Quite simply, they are involute gears using portion of the involute curve as their tooth forms. Looking generally, the involute form is the most wide-spread gear tooth form due to, among other reasons, the ability to absorb small middle distance errors, very easily made production equipment simplify manufacturing, heavy roots of one’s teeth make it strong, etc. Tooth shape is often described as a specification in drawing of a spur equipment as indicated by the elevation of teeth. Furthermore to standard full depth teeth, extended addendum and stub tooth profiles can be found.
Ever-power’s spur gears, which are made to transmit movement and power between parallel shafts, will be 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 normally recognized as having an increased load carrying capacity; nevertheless, 14 1/2° PA gears are utilized extensively as well. This is because the lower pressure angle reduces alter in backlash due to center distance variation and concentricity errors. The 14 1/2° PA also offers a higher get in touch with ratio for smoother, quieter operation.
Ever-power spur gears can be found through our Guaranteed Same Day time Shipment from our world class manufacturing middle in Hangzhou, China. Many different gears with a number of bore sizes, keyways, and setscrews are routinely in stock, if the particular bore/keyway/setscrew mixture needed is not readily available, our machining professionals can transform any non-hardened equipment and deliver it within 24 hours. Just ask!
We offer all types of spur gears including floor spur gears, metric spur gear, hubless spur hears, fairloc spur gears, plastic material spur gears, metal spur gears, injection molded spur gears.
· Transmits motion and power effectively between parallel shafts.
· Our 20° PA spur gear has a high load-carrying capacity for 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 components for maximum versatility.
· nonmetallic (phenolic – grade C) material provides calm, corrosion resistant operation.
· Custom Spur Gears
· Ever-power custom spur gears & internal spur gears in a variety of styles and sizes. We specialize in spur gears & gear drives that are designed to meet exacting specs and tolerances. We offer standard & metric sizes, and can make spur gears in a variety of materials. Special designs are available. Following AGMA specs, Avon often exceeds these specifications to accommodate the intricacies of high precision gears. No specification, no detail is too complex for Avon.