Rotary Encoders

Rotary Encoders are devices that convert a motion into an analogue or digital signal. These devices are electro-mechanical sensors that monitor the position of the shaft or axle and convert it into the signal readable for digital devices. Rotary Encoders are also known as shaft encoders.
Rotary Encoders can be divided into 2 main types:
· Absolute – Digital Absolute encoders produce a unique digital code for each angle of shaft. These type of encoders maintains position information when a system power is off. The position of encoder is available again on applying power. The relationship between the encoder value and the physical position of the controlled machinery is set at assembly, the system does not need to return to a calibration point to maintain position accuracy.
Types of absolute encoders:
o Mechanical
o Optical
o Magnetic
o Capacitive
· Incremental – These encoders accurately records the changes in position of the shaft but does not power up with fixed relation between encoder state and physical position. The point where the counting begins depends on the external device counting system and not the position of the encoder. To provide useful position information, the encoder position must be referenced to the device to which is attached.
Rotary Encoders are commonly used in many applications that require precise shaft unlimited rotation. It means they can be used across industries such as robotics industry, electronic industry, and machinery production but are also very popular parts of many household devices.

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Description Price Pulses Per Revolution Encoder Technology Maximum Revolutions Output Signal Type Shaft Type Shaft Diameter Supply Voltage Resolution Steps Per Revolution IP Rating Interface Overall Height Overall Width Overall Depth
RS Stock No. 492-9191
Mfr. Part No.ATM60-P4H13X13
BrandSick
$1,215.50
Each
units
8192 Absolute 6000rpm - Solid 10mm 10 → 32 V dc - 8192Steps IP43, IP65, IP66 PROFIBUS 93.8mm - -
RS Stock No. 827-5019
Mfr. Part No.3315C-101-016L
BrandBourns
$5.39
Each
units
- - - - - - - - - - - 9.53mm - 17.88mm
RS Stock No. 291-4349
Mfr. Part No.RS0550178
BrandHengstler
$491.34
Each
units
5000 Incremental 10000rpm Push Pull Solid 10mm 10 → 30 V dc - - IP64, IP65 - 50mm - -
RS Stock No. 161-6916
Mfr. Part No.ECW1J-C24-AC0024L
BrandBourns
$6.227
Each (In a Tray of 45)
units
- Incremental 120rpm Push Pull Solid - 10 V dc 2 Bit - IP40 - 28.49mm 22.2mm 27.51mm
RS Stock No. 860-2730
Mfr. Part No.8.5000.B157.0100
BrandKubler
$469.89
Each
units
100 Incremental 12000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP65 - 71.4mm 50.8mm 64mm
RS Stock No. 173-5536
Mfr. Part No.DPL12H2424A20FR
$9.096
Each (In a Box of 500)
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 27.4mm 13.2mm 12.4mm
RS Stock No. 499-7627
Mfr. Part No.BDK 16.24K.0500-5-4
BrandBaumer
$583.62
Each
units
500 Optical 12000rpm HTL/Push Pull Solid shaft 5mm 10 → 30 V dc - - IP42 - - 30 Dia.mm -
RS Stock No. 827-5031
Mfr. Part No.ECW1J-C24-AC0024L
BrandBourns
$6.56
Each
units
- Incremental 120rpm Digital Flatted - 10 V dc 2 bit - IP40 - 28.49mm 22.2mm 27.51mm
RS Stock No. 820-3724
Mfr. Part No.EIL580-TT12.5FN.01024.A
BrandBaumer
$421.32
Each
units
1024 Optical 6000rpm HTL/Push Pull Hollow shaft 12mm 8 → 30 V dc - - IP65 - - 58 Dia.mm -
RS Stock No. 431-4599
Mfr. Part No.05.2400.1122.1024
BrandKubler
$368.63
Each
units
1024 Incremental 12000rpm Push Pull - - 5 → 24 V dc - - IP65 - 31mm - -
RS Stock No. 167-8669
Mfr. Part No.ECS78RBA103
BrandVishay
$32.825
Each (In a Box of 20)
units
- Linear Measuring 150rpm - - - - - - - - 30.2mm 22.2 Dia.mm -
RS Stock No. 205-6869
Mfr. Part No.HEDS-5500#A06
BrandBroadcom
$80.37
Each
units
500 Incremental 30000rpm Quadrature Hollow 1/4in 4.5 → 5.5 V dc - - - - 41.1mm 30mm 18.3mm
RS Stock No. 447-6271
Mfr. Part No.D5.2501.2441.1000
BrandKubler
$913.80
Each
units
- Linear Measuring - Push Pull - - 8 → 24 V dc - - IP64 - 40mm 55mm 40mm
RS Stock No. 690-6761
Mfr. Part No.62S22-M5-060C
BrandGrayhill
$128.11
Each
units
16 - - - - - 5 V dc - - - - 24.79mm 12.7mm 13.72mm
RS Stock No. 388-5589
Mfr. Part No.WDG58B-500-ABN-G24-K3
$389.37
Each
units
500 Incremental 8000rpm HTL Solid - 10 → 30 V dc - - IP65, IP67 - 83mm - -
RS Stock No. 167-0132
Mfr. Part No.ECW1J-R24-BC0024L
BrandBourns
$6.46
Each (In a Tray of 45)
units
- Incremental 120rpm Push Pull - - 10 V dc 2 Bit - IP40 - 27.68mm 23.37mm 28.02mm
RS Stock No. 291-4254
Mfr. Part No.RS38-O/1000EQ.11KB
BrandHengstler
$368.16
Each
units
1000 Incremental 10000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 46.5mm - -
RS Stock No. 795-1040
BrandRS PRO
$358.72
Each
units
200 Incremental 8000rpm HTL Inverted Solid 10mm 5 → 30 V dc 2500 ppr - IP67 - - 58 Dia.mm 85mm
RS Stock No. 499-7598
Mfr. Part No.BDK 16.05A.1024-5-4
BrandBaumer
$707.69
Each
units
1024 Optical 12000rpm RS422, TTL Solid shaft 5mm 5 V dc - - IP42 - - 30 Dia.mm -
RS Stock No. 291-4333
Mfr. Part No.RI58-0/2500EK.42KB
BrandHengstler
$544.10
Each
units
2500 Incremental 10000rpm Push Pull - - 10 → 30 V dc - - IP64, IP65, IP67 - 57.5mm - -
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