K38 shaft diameter blind hole Voltage DC5V-30Vincremental encoder & decoder
|Encoder type||Incremental encoder|
|Installation dimension||R23.5mm(spring plate 38T45)|
|Hollow shaft type||blind hole ; through hole|
|Hollow shaft diameter||5mm,6mm,6.35mm;8mm|
|Output phase||Phase A,B,Z A- B- Z-|
|Supply voltage||DC5V ; DC8-30V|
|Outlettype||Cable out from side|
|Cable out from back|
|Output mode||NPN/PNP(Open Collector Output)|
|Long line drive (26LS31)|
|Long line drive (RT7272)|
|Environmental temperature||Operating temperature: -20~+90° (Non icing)|
|Storage temperature: -25~+100° (Non icing)|
|Environmental humanity||Operating and storage: 35~85%RH (non-condensing)|
|Shell||Die cast aluminium|
|Consumption current||100mA Max|
|Shaft Load||Radial: 40N; Axial:20N|
|Top REV||5000RPM ;IP65≤3000r rpm|
|Insulation strength||AC500V 60s|
|Mark to Space ratio||45% to 55%|
|Top Resonse Frequency||100kHz Max|
|Shell Material||Dia cast aluminium|
|Bearing life||1.5x109 revs at rated load(100000hrs at 2500RPM)|
|GND||not connect to encoder|
|Shaft Material||Stainless steel|
|Vibration(endure)||Amplitude 0.75mm,5-55Hz,2 hours for X/Y/Z direction individually|
|Shock(endure)||490m/s2,11 ms three times for X,Y,Z direction individually|
|Protection grade||IP50 ; IP65|
|starting torque||less than 9.8X10-3 N.m|
|Intertia moment||less than 6.5x 10-6kg.m2|
|Net weight||About 140g (with package)|
Principle of encoder
An incremental rotary encoder outputs a certain amount of Pulses per Revolution. The higher this PPR number, the smaller the angle between each pulse. This PPR number is fixed for ordinary incremental encoders. Programmable incremental encoders can adjust this value to a desired number by a software change.
Today most incremental encoders have a Push-Pull (HTL) or RS422 (TTL) output driver, these have replaced most of the older output circuits like Open Collector NPN, Open Collector PNP, Voltage Output.
Push-Pull (HTL) circuits, also known as Totem Pole, provide a signal level which corresponds to the applied supply voltage. The supply voltage typically ranges from 8 to 30 VDC.
With proper connections you can use the Push Pull interface to replace true open collector circuits by using an external diode connected in a way to limit the direction of the current for RS422 (TTL) circuits provide a constant 5 V signal level that is not dependent on the supply voltage. Two supply voltage ranges can be selected: From 4.75 to 5.5 VDC (can be used to replace open collector output drivers) or from 8 to 30 VDC. Using differential signals the output fully complies to the RS422 standard.
1. for 1-10 samples: 3-5 working days
2. for 20-50 mass production: 7-10 working days
3. for over 100pcs, production will be discussed with customers and ship on time
1. T/T, western union, credit card, Paypal, etc
2. 3-5 working days after payment received
3. Encoders will be shipped once ready
Goods can shipped via TNT, FedEx, UPS, DHL, EMS, etc.
You could select the express according to your requirements if freight collector
If you do not have any courier account, we will check and find a cheapest and safety express for you.
Our factory has 30% discount with most courier company, so price could be as cheap as possible.
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