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Metal Sprocket & Chains size chart

Robot Chain Sprocket Types

We displays sprocket Type B, if you need others type please contact us based on picture above.

Standard Sprocket Size & Chain (ANSI #25) :

*1 inch = 25.4mm

ANSI #25 Chain - 1/4" Pitch
# of Teeth OD (A) Wd. (B) Hub Dia.(C) Item No.
9 .84" 1/2" 7/16" by request
10 .92" 1/2" 1/2" KR18198
11 1" 1/2" 9/16" by request
12 1.08" 1/2" 5/8" by request
13 1/17" 1/2" 23/32" by request
14 1 1/14"
1/2"
13/16" Steel (by request)
KR18049 (Plastic)
15 1.33" 1/2" 57/64" by request
16 1.41" 1/2" 31/32" Steel (by request)
KR18050 (Plastic)
17 1.49" 1/2" 1 1/32" by request
18 1.57" 1/2" 1 1/8" by request
19 1.65" 1/2" 1 7/32" by request
20 1.73" 5/8" 1 9/32" KR18200
21 1.81" 5/8" 1 3/8" by request
22 1.89" 5/8" 1 7/16" by request
23 1.97" 5/8" 1 1/2" by request
24 2.05" 5/8" 1 1/2" by request
25 2.13" 5/8" 1 1/2" Steel (by request)
KR18051 (Plastic)
26 2.21" 5/8" 1 1/2" by request
28 2.37" 5/8" 1 1/2" by request
30 2.53 5/8" 1 1/2" by request
32 2.69 5/8" 1 1/2" by request
37 3.09" 3/4" 1 1/2" KR18199
40 3.33" 3/4" 2" by request
45 3.73" 3/4" 2" by request
48 3.96" 3/4" 2" by request
54 4.44" 3/4" 2" by request
60 4.92" 3/4" 2" by request
66 5.398" 3/4" 1 1/4" KR18264
70 5.72" 3/4" 2" by request
72 5.88" 3/4" 2" by request

How wheel collar works?

Wheel collar is used to hold wheel at end shaft (for end shaft of dc motor or common shaft).




Motor Speed and Torque ratio


How to calculate exactly load torque value for motor mechanism? In common use for dc gearbox motor is for ballscrew drive, pulley drive, wire/ belt drive, there is formula show how to calculate right torque capacity that must be choosed for load torque dc gearbox.







Formula Legend :

Tamiya DC Gearbox Speed & Ratio

Tamiya DC Gearbox Chart (Click for larger view) :



Create Motor/ Wheel Shaft using Machine Tools

With machine tools, we can make small parts of robot like wheel shaft, dc motor shaft, hub, joint, etc, so very easy for your hobby to make customize part.



We have two kind machine tools, one is milling machine and second is lathe machine. Milling machine is for shape/ contour metal working piece. Lathe machine for symetric/ cylindric metal working.



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Shaft & Coupling made from Lathe Machine

We can provide custom size for your dc motor shaft/ coupling, just email us about your need/ drawing, after that we will help you to make it. This example how we made dc motor shaft :













Non Polar Capacitor

1. Ceramic Capacitor
This type is very popular non polarized capacitor that is small and inexpensive but has poor temperature stability and poor accuracy. It contains a ceramic dielectric and a phenolic coating. It is often used for bypass and coupling applications. Tolerances range from +/-5 to +/-100 percent, while capacitances range from 1 pf to 2.2 uF, with maximum voltage rating from 3 V to 6 kV.

2. Mylar Capacitor

This type is a very popular non polarized capacitor that is reliable, inexpensive, and has low leakage current but poor temperature stability. Capacitances range from 0.001 to 10 uF, with voltage ratings from 50 to 600 V.

3. Mica/ Mika Capacitor
This type is an extremely accurate device with very low leakage currents. It is constructed with alternate layers of metal foil and mica insulation, stacked and encapsulated. These capacitors have small capacitances and are often used in high frequency circuits (eg. : RF circuits). They are very stable under variable voltage and temperature conditions. Tolerances range from +/-0.25 to +/-5 percent. Capacitances range from 1 pf to 0.01 uF, with maximum voltage ratings from 100 V to 2.5 kV.

4. Capacitor Readings
Mylar Capacitor
Examples : Capacitor Code 474
4 (first figure) and 7 (second figure) is significant figure and third number is 4 is multiplier (4 = 10.000)
So, Capacitor Code 474 = 47 x 10000 (pF / pico Farad) = 470000pF (pico Farad)
470000 pF = 470 nF (nano Farad) = 0.47 uF (micro Farad)

Filter for Sensor

Filter for sensor (item no. KR04145 click here)
It's recommended to use Ultrasonic filter if you have unstable ultrasonic reading during reading the sensor. The power supply filter kits includes a 10ohm resistor, a 100ohm resistor, and a 100uF capacitor. The power supply filter is recommended for environments with unclean power or electrical noise. Electrical noise may cause unstable reading ranges. The power supply filter helps clean unstable or dirty power supplies that may cause a sensor to have unstable range reports.

Power Supply Filter for sensor

Power Supply Sensor I2C

 

Tamiya Motor Speed & Torque ratio

Tamiya DC Motor (Click for larger view):




Click on the picture to larger view

Stepper Motor Working

Picture below show how stepper motor mechanism works, one axis direction need one stepper (stepping motor), to make stepper motor rotate is needed Stepping Motor Driver which controlled by Stepping Motor Controller/ Breakout Board (for Stepping Motor Driver & Controller you can find at KR10 Stepping Motor Controllers). One Stepper motor need connected to One Driver and somes Driver can connected to One Controller/ Breakout Board and last connect to CPU/ Programmable Controller.


StepSyn Stepper Motor wiring (left click for larger view) :



Vexta Stepper Motor wiring (left click for larger view) :

Klinik Robot Bearings Charts

Here our bearings list & item no :






(mm)
Type Inner Outter Flange Thickness Item No.
Ball 2 5 - 2.5 KR18127
Ball 2 6 - 2 KR18123
Ball 2 6 - 2 KR18125
Ball 2 6 - 2.5 KR18128
Ball 4 16 - 5 KR18130
Ball 5 8 - 2.5 KR18124
Ball 5 9 - 3 KR18122
Ball 5 16 - 5 KR18129
Ball 6 1.85 - 3 KR18223
Ball 8 14 - 4 KR18034
Ball 8 22 - 7 KR18132
Ball 8 24 - 8 KR18131
Ball 9 4 - 3 KR18226
Ball 9 4 - 4 KR18222
Ball Tamiya Hex. 9 - 3 KR18126
Flanged 3 8 9.5 4 KR18148
Flanged 4 12 13.5 4 KR18149
Flanged 5 11 12.5 5 KR18150
Flanged 6 10 11.2 3 KR18151
Flanged 7 14 16 5 KR18152
Pillow 12 - - - KR18035

Encoder Works


Hall Effect sensors are widely used in many applications. Such as door switches in refrigerators, sliding switch in cell phones, velocity or directional movement for sensing of position in automotive systems, Distance and speed, etc.

Read Resistor Values

Resistor’s values are marked on the body of the resistor using a color coding. This can be beneficial when looking for a resistor value that is not in original packaging. To read a resistor please use the diagram below.

Resistor Colour Tables
Examples :
The resistor above has 1 as the first digit, 0 as the 2nd digit, with a multiplier of 10. Using the chart above the digits are 10, multiply that by 10 and you get a resistor value of 100ohm. The tolerance on this resistor is 5%, this means the resistor may report a resistance between 95 and 105 ohms when read with a multi-meter. The last band on a resistor before the tolerance band, is always the multiplier. All bands that are before the multiplier will be digits.

 

Catalogs                                                                                                      

Klinik Robot Robot Kit and Tamiya Educational Klinik Robot Programmable Controller, Educational Development Board, Programmable IC, Communication Device, Human Interface Device, Sensors Klinik Robot DC Motor Controller, Stepping Motor Controller, Servo Motor Controller, DC Brush Motor, DC Gearbox Motor, DC Brushless Motor, Servo Motor, DC Stepping Motor, Wheel, Caster, Omni-directional, Pulley Belt, Gears Klinik Robot Machinary, Machine Tools, Power Supply & Accesoriess