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General Interest Hot Products MMA7361(MMA7260) Accelerometer Sensor Module For Arduino $3.39 Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino $2.10 433Mhz RF transmitter and receiver kit for Arduino project $1.90 1602 16x2 HD44780 Character LCD Display Module LCM blue blacklight $2.99 USBasp USBISP 3.3V / 5V AVR Programmer USB ATMEGA8 $3.60 40 Pin 1x40 Male 2.54 breakable pin header $1.65 5 x 7 cm DIY Prototype Paper PCB Universal Board $2.09 For DIY 11 Styles Plastic Gears All The Module 0.5 Robot Part Recognizing Code: Such as double-gear 2610-2B is the outer 26 teeth, within 10 teeth, aperture 2mm tight fit A tight with small 0.05mm aperture than standard B said loose with than the standard aperture 0.05mm Calculate the gear diameter: (Number of teeth +2) * modulus = gear diameter Gear modulus of the package: 0.5 Aperture: 1.5, 2, 2.5,3 Modulus: 0.5 Aperture 1.5, 2,2.5,3 9-2A 12-2A C20-2A 6*8?diameter 6mm,length8mm) 422A 30-2A 56-2A 5610-2A 3010-2B 2410-2B 4410-2B Gear basic knowledge Tooth Referred to as teeth, the gear for engaging the convex portion, the convex portion is generally radially arranged paired gear tooth to contact each other, can constant engagement running gear; Alveolar The space between two adjacent teeth on the gear; face is a cylindrical gear or cylindrical worm, perpendicular to the plane of the axis of the gear or worm Normal plane Refers to a plane perpendicular to the tooth line Addendum circle Where the tooth top round Dedendum circle Refers to the bottom of the channel where the circle Base circle The formation of the occurrence of involute line for pure rolling circle Pitch circle Is calculated at the end face of the reference circle of the gear geometry. Each of the tooth (teeth) ? ? gear for engaging the raised portion. Generally, these convex portions are arranged radially. Paired gear tooth contact with each other, resulting in constant engagement operation of the gear. Alveolar the ? ? gear on the space between two adjacent teeth. Gear End face ? ? the cylindrical gear or cylindrical worm perpendicular to the plane of the axis of the gear or worm. Law face ? ? gear, the normal plane is perpendicular to the plane of the tooth line. Addendum circle ? ? teeth located at the top of the circle. Root circle ? ? circle where the bottom of the groove. Form involute base circle ? ? occurred lines on pure rolling circle. The pitch circle ? ? calculate the reference circle of the gear geometry to the face-to-face, in a the dividing circle on modulus and pressure angle spur gear are standard values. Tooth surface ? ? teeth of the side surface located between the cylindrical surface of the cylindrical surface of the addendum and the dedendum. Tooth profile ? ? tooth surface by a specified surfaces (cylindrical gear plane) cut cut line. Dentate line ? ? tooth surface with a dividing line of intersection of the cylindrical surface. The end face of the pitch pt ? ? two adjacent ipsilateral long end face sub-degree arc tooth profile. The modulus m ? ? pitch divided by pi π supplier, measured in millimeters. Diametral pitch p ? ? modulus of reciprocal, the inches. Tooth thickness s ---- in the end face of a tooth on both sides of the length of the sub-degree arc tooth profile. Slot width e ? ? alveolar in the end face of a sub-degree arc length between both sides of the tooth profile. Addendum h? ? ? radial distance between the tip circle of the pitch circle. Tooth root high Hf the ? ? indexing the radial distance between the circle and root circle. Total depth h ? ? addendum circle and dedendum circle between the radial distance. Tooth width b - tooth along the axial dimensions. Face pressure angle ?t ? ? acute angle over-end round tooth profile and indexing the radial line through the point of intersection of the tangent of the folder tooth profile. Standard Rack: only the size of the base circle, tooth, the whole tooth height, crown height and tooth thickness dimensions are in line with the standard specifications of the rack gear, cutting out the rack according to their standard gear specifications called benchmark rack. The reference pitch circle (Standard Pitch Circle): used to determine the various dimensions of the reference circle of the gear. Modulus is the number of teeth x Standard Pitch Line: rack on a particular section of line or tooth thickness measured along this line, half of the pitch. Action Pitch Circle: occlusal role of a spur gear, each with a tangent rolling circle. Standard Pitch: benchmark, with the benchmark rack pitch equal to the selected standard pitch. Pitch Circle: two gears with heart online occlusal contact points of each gear, left the track called the pitch circle. Pitch Diameter: pitch circle diameter. Working Depth: a spur gear tooth crown height., Also known as tooth height. Addendum: the addendum circle of the pitch circle radius. Backlash: two teeth bite, the tooth surface and tooth surface gap. Clearance: two teeth bite, the gap between a gear addendum circle with another gear bottom. Pitch Point: a pair of gears with pitch circle tangent point. itch: two adjacent interdental corresponding point arc distance. Normal Pitch: involute gear along a particular cross section measured by the same vertical pitch. SHIPPING PAYMENT RETURNS FEEDBACK ABOUT US Address: Please make sure your Paypal address is updated and accurate. All of your order(s) will be delivered to it. Ship to: We ship worldwide (except few countries). For USA buyer, we will send by ePacket delivery. For other customers, we will send your item by HongKong Airmail or Singapore Airmail without a tracking number. Estimated Delivery Time (Depends on holidays and Flight) : A) United States Canada Australia United Kingdom New Zealand: 2-3 weeks B) Israel Thailand Malaysia Singapore Sri Lanka Indonesia India Maldives Greece Armenia Azerbaijan Republic Kazakhstan Saudi Arabia United Arab Emirates: 2-4 weeks C) Italy Spain Turkey South Africa Fiji Puerto Rico: 4-5 weeks. D) France Belarus Estonia Switzerland Germany Sweden Denmark Hungary Romania Croatia Bulgaria Latvia Cyprus Czech Mexico Austria Bosnia and Herzegovina Slovakia Lithuania Ukraine Egypt Poland Netherlands Malta Belgium Portugal Norway Finland Ireland : 2-4 weeks E) Russia Brazil Argentina Chile Mauritius All of the South American countries: 5-8 weeks F) Other countries: not more than 30 business days Handling Time: 1-2 working days after payment is completed. Tracking Number: 1. Order exceeds $50 will be shipped with a tracking number. 2. For order under $50, and you still need a tracking number, please contact us. Parcel Lost: Less than 0.5 percent parcels may be lost in shipment. But don't worry, we'll take good care of it. We Only Accept Paypal on Ebay. For specific requirements, please feel free to contact us. If you are facing with troubles below, please contact us as soon as you can Defective or Wrong: full refund or send you a new replacement Missing: new package arranged, or partial refund Dislike: full refund after we received your item (buyer undertakes return shipping fee) Consumers' satisfaction is our first priority and pursuit . We promise to solve your problem in a good way . We consider neutral and negative feedbacks as a SHAME. So please never give us a neutral or negative feedback before communicating with us . Our working time is 08:30-17:30 from Monday to Friday in Beijing Time. Because of the time difference, we may not reply your email immediately. All emails will be replied in 24 hours, please understand that. We devote to making the best service for you. We look forward to serving you. Any questions, please contact us via our ebay email. Your emails are warmly welcomed. DC-DC Buck Converter Step Down Module LM2596 Power Supply Output 1.23V-30V MB102 830 Tie Points Solderless PCB Breadboard MB-102 + 65PCS Jumper cable SG90 9G TowerPro micro small servo motor RC Robot Helicopter Airplane controls DHT22/AM2302 Digital Temperature and Humidity Sensor Replace SHT11 SHT15 HC-SR501 Infrared Pyroelectric Human Sensor Module I2C RTC DS1307 AT24C32 Real Time Clock Module for arduino AVR PIC ARM 51 84x48 84*48 Nokia 5110 LCD Module with blue backlight adapter PCB SD Card Module Slot Socket Reader For Arduino ARM MCU inkfrog terapeak i000000 inkFrog Analytics On Dec-18-14 at 09:17:20 PST, seller added the following information:
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