Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
Blind Hole 8mm K38 Rotary Shaft Encoder AB Phase NPN Output Dc 10 - 30vV rotayr encoder

Blind Hole 8mm K38 Rotary Shaft Encoder AB Phase NPN Output Dc 10 - 30vV rotayr encoder

  • High Light

    optical position encoder


    incremental rotary encoder

  • Encoder Type
    Rotary Encoder
  • External diameter
  • Installation Dimension
    R23.5mm(spring Plate 38T45)
  • Hollow Shaft Type
    Blind Hole ; Through Hole
  • Hollow Shaft Diameter
  • Shaft Load
    Radiel: 40N; Axial:20N
  • Top REV
    5000RPM ;IP65≤3000r Rpm
  • Cable length
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    K38 Series rotary encoder
  • Minimum Order Quantity
    1pcs encoder to start order
  • Price
  • Packaging Details
    each 1 piece was packed into single carton box
  • Delivery Time
    3-5 working days for sample order, 7-15 working days for mass order
  • Payment Terms
    D/A, D/P, T/T, Western Union, Credit Card, Master Card,Paypal, etc
  • Supply Ability
    100K pieces per year

Blind Hole 8mm K38 Rotary Shaft Encoder AB Phase NPN Output Dc 10 - 30vV rotayr encoder


Blind hole 8mm shaft K38 optical rotary encoders AB phase NPN output dc10-30V rotary encoder


Product Description

Hollow shaft diameter 6mm, 6.35mm, 8mm

Through hole or blind hole shaft

Protection level grade IP50 or IP65

Circuit signal output: NPN, PNP, Voltage output, Push-pull, Line driver output

Resolution(PPR):Min 50ppr, Max 16384ppr

IP grade IP50 or IP65

Installation dimension 45mm

Output Phase: A-,B-, or ABZ or A+B+Z+A-B-Z-

Gross weight 140 grams



Blind Hole 8mm K38 Rotary Shaft Encoder AB Phase NPN Output Dc 10 - 30vV rotayr encoder 0


Parameter table


Items Basic parameters
Encoder type Incremental encoder
External diameter 38mm
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 aluminum
Consumption current 100mA Max
Shaft Load Radial: 40N; Axial:20N
Top REV 5000RPM ;IP65≤3000r rpm
Insulation strength AC500V 60s
Insulation resistance 10MΩ
Mark to Space ratio 45% to 55%
Top Response Frequency 300kHz Max
Shell Material Die cast aluminum
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
Cable length 1000mm


Our advantage

Over 18 years encoder production experience

More than 20 years experienced engineers

Own brand and unique brand

CE certification for all models

Prompt delivery date

100% full inspection before shipment



Q: Where can I download the encoder catalogue or datasheet?

A: You could visit our official website or email us directly to the latest files.

Q: What parameters are requested before ordering an encoder?

A: You should get some basic parameters before you start to order. Such as installation dimensions, resolutions, circuit signal, power supply voltage, etc.

If you have any doubt on selecting the model, you are welcome to contact us for more assistant.

Q: Where is your factory?

A: Our factory is located on Shanghai City.

Q: Can I pay a visit to your factory?

A: Yes, you we welcome to visit our factory at any time if convenient.

Q: What’s your MOQ?

A: 1pcs

Q: How to order your encoder?

A: Contact us, or email us, we will reply you as soon as possible.

Q: Are you a factory or a trading company?

A: we are 100% factory with our brand.

Q: What’s your brand?



Production date

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


Technical Theory

The encoders can be selected with cable or connector. If you choose the connector option, you will need a mating connector or a cordset (both connector and cable). This will give you a connection point to the encoder but does not necessarily get you all the way to your control cabinet. Depending on the distance, you may need a junction box, conduit, and cable tray. Care should be taken when routing encoder cable to reduce the influence of "noise". To reduce this influence, the cable should have a braided shield around the wires and the wires should be twisted pair. The encoder cable should be in a conduit with only low DCV cables and keep AC and high-power cables separated. If there are cable trays with AC and DC cables, there should be a grounded metal divider between the DC and AC cables. If the encoder cable does need to cross an AC cable, it should cross perpendicular (90 degrees to each other). The shield should be connected to one earth ground location in your control cabinet (so it has a star topology).


1. Goods can shipped via TNT, FedEx, UPS, DHL, EMS, etc.

2. You could select the express according to your requirements if freight collector

3. If you do not have any courier account, we will check and find a cheapest and safety express for you.

4. Our factory has 30% discount with most courier company, so price could be as cheap as possible.


Payment terms

1. T/T, western union, credit card, Paypal, etc

2. 3-5 working days after payment received

3. Encoders will be shipped once ready