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. 178-3258
Mfr. Part No.AEDB-9140-A13
BrandBroadcom
$45.22
Each (In a Bag of 100)
units
- Incremental - Digital - - -0.5 → 7 V dc 500 CPR - - - 13.6mm 21.6mm 9.74mm
RS Stock No. 796-7806
Mfr. Part No.AEDB-9140-A13
BrandBroadcom
$57.38
Each
units
500 Incremental - Push Pull - - -0.5 → 7 V dc 500 CPR - - - 13.6mm 21.6mm 9.74mm
RS Stock No. 712-5424
Mfr. Part No.DFS60B-S4PA10000
BrandSick
$461.82
Each
units
10000 Incremental - HTL, TTL Solid 10mm 5 → 32 V dc - - IP65, IP67 - 40.1mm - -
RS Stock No. 714-0237
Mfr. Part No.AEAT-601B-F06
BrandBroadcom
$48.90
Each
units
256 Incremental 12000rpm Quadrature - - 4.5 → 5.5 V dc - - - - - - -
RS Stock No. 178-3257
Mfr. Part No.AEAT-601B-F06
BrandBroadcom
$40.56
Each (In a Box of 80)
units
256 Incremental 12000rpm Quadrature - - 4.5 → 5.5 V dc - - - - - - -
RS Stock No. 860-2792
Mfr. Part No.SR060E-25-2-3-132-V100
BrandKubler
$826.03
Each
units
- - 500rpm - Hollow 25mm 240 V ac/dc - - IP64 - - 58mm 89mm
RS Stock No. 603-0546
Mfr. Part No.RE12D-300-201-1/E
$116.63
Each
units
300 Incremental - Quadrature Solid - 5 V dc - - - - 24mm - -
RS Stock No. 492-9208
Mfr. Part No.AD-ATM60-KA3PR
BrandSick
$270.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 666-6864
Mfr. Part No.0541211
BrandHengstler
$673.91
Each
units
- Absolute 10000rpm Gray, SSI Solid 10mm 7 → 30 V dc 12 bit - IP64 SSI-Gray 48.1mm - -
RS Stock No. 744-5343
Mfr. Part No.E6B2CWZ6C600PR2M
BrandOmron
$385.39
Each
units
600 Incremental 6000rpm NPN Open Collector Solid 6mm 5 → 24 V dc - - IP50 - 59mm - -
RS Stock No. 603-0552
Mfr. Part No.RE30E-100-213-1
$124.87
Each
units
100 Incremental - Push Pull Solid - 5 → 12 V dc - - - - 44mm - -
RS Stock No. 436-0378
Mfr. Part No.05.2400.1122.0360
BrandKubler
$286.70
Each
units
360 Incremental 12000rpm Push Pull - - 5 → 24 V dc - - IP65 - 31mm - -
RS Stock No. 205-6881
Mfr. Part No.HEDS-5540#A06
BrandBroadcom
$80.41
Each
units
500 Incremental 30000rpm Quadrature Hollow 1/4in 4.5 → 5.5 V dc - - - - 41.1mm 30mm 18.3mm
RS Stock No. 189-4801
Mfr. Part No.HEDS-5540#A06
BrandBroadcom
$64.37
Each (In a Tube of 50)
units
500 Optical 30000rpm Digital - 1/4in -0.5 → 7 V 500 CPR - - - 41.1mm 30mm 18.3mm
RS Stock No. 492-9191
Mfr. Part No.ATM60-P4H13X13
BrandSick
$1,121.57
Each
units
8192 Absolute 6000rpm - Solid 10mm 10 → 32 V dc - 8192Steps IP43, IP65, IP66 PROFIBUS 93.8mm - -
RS Stock No. 745-0092
Mfr. Part No.E6CP-AG5C-C 256 2M
BrandOmron
$493.94
Each
units
256 Incremental 1000rpm Open Collector Solid 6mm 12 → 24 V dc 8 Bit - IP50 - 50mm - -
RS Stock No. 291-4311
Mfr. Part No.RI58-0/1000EK.42KB
BrandHengstler
$518.68
Each
units
1000 Incremental 10000rpm Push Pull - - 10 → 30 V dc - - IP64, IP65, IP67 - 57.5mm - -
RS Stock No. 918-9064
Mfr. Part No.8.KIS40.1342.0500
BrandKubler
$234.89
Each
units
500 Incremental - Push Pull Solid 6mm 10 → 30 V dc - - IP64 - - 40mm 61.3mm
RS Stock No. 172-7679
Mfr. Part No.EC11B152442D
$5.373
Each (In a Tray of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 252-3915
Mfr. Part No.EC11B152442D
$10.638
Each (In a Pack of 5)
units
15 Incremental - Push Pull 6 mm Shaft 6mm 5 V dc - - - - 31.6mm 13.75mm 11.7mm
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