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Gear Type:

Tooth Form:

Number of Teeth:

Design Units:

Pressure Angle:

Gear Features:

English Size Specifications: Pitch Diameter:

English Size Specifications: Face Width:

English Size Specifications: Length:

English Size Specifications: Bore Diameter (if applicable):

English Size Specifications: Shaft Diameter (if applicable):

Metric Size Specifications: Pitch Diameter:

Metric Size Specifications: Face Width:

Metric Size Specifications: Length:

Metric Size Specifications: Bore Diameter (if applicable):

Metric Size Specifications: Shaft Diameter (if applicable):

Metal:

Plastic:

Help with Rack and Pinion Gears specifications:

Gear Type
   Gear Type       
   Your choices are...         
   Rack       Racks are straight components with gear teeth. They mate with pinions (spur gears) and are typically straight-toothed. 
   Pinion       Pinions are used to drive racks or larger gears. They can be physically similar to spur gears, and occasionally resemble helical gears. The "pinion" designation is primarily used to indicate that the device is the driving gear in a rack and pinion configuration. 
   Roller Pinion       Roller pinion drives use bearing supported rollers that mesh with the teeth of that rack in order to provide minimal to no backlash. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Tooth Form       
   Your choices are...         
   Straight Teeth       The tooth axis is parallel to the axis of rotation. 
   Helical Teeth       Spiral or helical teeth curve along the gear's face. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Number of Teeth       The number of teeth helps determines the pitch or module of the gear. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Design Units       
   Your choices are...         
   English       English gears use design units such as inches and fractions of inches; they also employ diametral pitch (DP) or circular pitch (CP) as tooth pitch designations. 
   Metric       Metric gears use metric design units such as millimeters (mm). Their pitch, the metric distance between teeth, is designated as a module. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Pressure Angle:      Pressure angle is the angle between the line of force or action and the tangent to the pitch circle at the point of mesh. The most common pressure angles for gears are 14.5° and 20°, while some worms and worm gears utilize a 25° pressure angle. Gears must have the same pressure angle to mesh.
   Your choices are...         
   14.5°       The gear has a pressure angle of 14.5°. 
   20°       The gear has a pressure angle of 20°. 
   25°       The gear has a pressure angle of 25°. 
   Other PA       Other unlisted pressure angles. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Gear Features       
   Your choices are...         
   Anti-backlash       Anti-backlash gears have a mechanical assist such as a spring to take up any play between meshing gear teeth, thus avoiding backlash when gear direction changes. 
   Ground Teeth       Ground teeth provide smoother, higher-precision tooth form. 
   Integral Rack and Rail       Rack teeth are machined or ground directly onto the moving element to increase power transmission efficiency. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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English Size Specifications
   Pitch Diameter       The diameter of tooth drive action. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Face Width       The width of the teeth (or length of a worm thread). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Length:       The length of a rack or piece of gear stock. Not a valid specification for other gear styles. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Bore Diameter (if applicable)       The diameter of the desired center bore through the gear. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Shaft Diameter (if applicable)       The diameter of the desired non-separable center shaft. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Metric Size Specifications
   Pitch Diameter       The diameter of tooth drive action. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Face Width       The width of the teeth (or length of a worm thread). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Length       The length of a rack or piece of gear stock. Not a valid specification for other gear styles. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Bore Diameter (if applicable)       The diameter of the desired center bore through the gear. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Shaft Diameter (if applicable)       The diameter of the desired non-separable center shaft. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Material
   Metal:       
   Your choices are...         
   Aluminum       Aluminum is a bluish, silver-white, malleable, ductile, light, trivalent, metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation. It is lighter than steel, but not as strong. 
   Brass       Brass comes with good strength, excellent high temperature ductility and reasonable cold ductility, good electrical conductivity, excellent corrosion resistance, good bearing properties, and low magnetic permeability. 
   Bronze       Bronze is a copper base alloy that consists of copper as the main alloying metal and one or more other metals, such as tin, zinc, or phosphorus.  Silicon bronze is a typical bronze alloy. 
   Cast Iron       Cast iron is a very durable iron alloy with high amounts of carbon. Types include ductile iron, gray iron and white cast iron grades. Differences in grades are due to variations in composition and processing. 
   Carbon / Alloy Steel       Steel is a commercial iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent. Many grades of carbon and alloy steel are available. They may require coating to protect against corrosion, however. 
   Hardened Steel       Steel may be hardened in a number of ways. These include a variety of quenching techniques in oil and water, passing the steel through induction chambers, etc. Quickly cooling steel during processing freezes, traps and packs the carbon atoms inside the shrunken iron crystals, thereby producing a very hard and brittle metal. Although very hard, it cannot absorb much shock or impact without breaking. 
   Stainless Steel       Stainless steel is chemical and corrosion resistant and can have relatively high stress ratings. Most stainless steels cannot be hardened to the same degree as carbon steels. 
   Other Metal       Other unlisted, specialized, or proprietary metals or alloys. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Plastic:       
   Your choices are...         
   Acetal       Acetal is a stable plastic material with inherent self-lubricating properties that can be enhanced with lubricating fillers. 
   Delrin       Delrin is an engineered plastic with a good combination of toughness, stiffness, wear and abrasion resistance, and low frictional characteristics. 
   Nylon       Nylon, comprising several grades of polyamides, is a general-purpose material in wide use. It is tough and resistant and has good pressure ratings.  
   Polycarbonate       Polycarbonate is an extremely tough polymer that can be machined to close tolerances.  Lubrication is sometimes needed, as the wear properties of polycarbonate are not as good as some other polymers. 
   Other Plastic       Other unlisted or specialized polymers or plastic materials. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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