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. 918-9076
Mfr. Part No.8.KIS40.1342.1024
BrandKubler
R 2,214.45
Each
units
1024 Incremental - Push Pull Solid 6mm 10 → 30 V dc - - IP64 - - 40mm 61.3mm
RS stock no. 499-7784
Mfr. Part No.BHG 16.25W.1024-B2-5
BrandBaumer
R 12,613.33
Each
units
1024 Optical 12000rpm HTL/Push Pull Hollow shaft 12mm 4.5 → 30 V dc - - IP42 - - 58 Dia.mm -
RS stock no. 172-6376
Mfr. Part No.EC11B152040G
R 36.344
Each (In a Tray of 100)
units
- - - - - - - - - - - - - -
RS stock no. 388-5646
Mfr. Part No.WDG58B-2500-ABN-I05-K3
R 3,533.25
Each
units
2500 Incremental 8000rpm TTL Inverted - - 4.75 → 5.5 V dc - - IP65, IP67 - 83mm - -
RS stock no. 122-4626
Mfr. Part No.AFS60A-S4NB262144
BrandSick
R 9,505.24
Each
units
- Absolute 9000rpm - Solid 10mm 10 → 30 V dc 18 Bit 262144Steps IP65, IP67 PROFINET - 60 Dia.mm 65mm
RS stock no. 918-9098
Mfr. Part No.8.KIH40.2442.1024
BrandKubler
R 2,413.11
Each
units
1024 Incremental - Push Pull Hollow 8mm 10 → 30 V dc - - IP64 - - 40mm 53.5mm
RS stock no. 827-5019
Mfr. Part No.3315C-101-016L
BrandBourns
R 51.45
Each
units
- - - - - - - - - - - 9.53mm - 17.88mm
RS stock no. 167-5427
Mfr. Part No.AMS22S5A1BHBFL336
BrandBourns
R 604.149
Each (In a Tray of 25)
units
- Incremental 120rpm Analogue Solid 1/8in 5 V dc 12 Bit - IP50 - - 22.23 Dia.mm 15.62mm
RS stock no. 744-5343
Mfr. Part No.E6B2CWZ6C600PR2M
BrandOmron
R 4,440.48
Each
units
600 Incremental 6000rpm NPN Open Collector Solid 6mm 5 → 24 V dc - - IP50 - 59mm - -
RS stock no. 789-9343
Mfr. Part No.AMS22S5A1BHBFL336
BrandBourns
R 799.15
Each
units
- Incremental 120rpm Analogue Solid 1/8in 5 V dc 12 Bit - IP50 - - 22.23 Dia.mm 15.62mm
RS stock no. 744-5337
Mfr. Part No.E6B2CWZ6C200PR2M
BrandOmron
R 3,476.97
Each
units
200 Incremental 6000rpm NPN Open Collector Solid 6mm 5 → 24 V dc - - IP50 - 59mm - -
RS stock no. 820-3682
Mfr. Part No.EIL580-SC10.5FN.01000.A
BrandBaumer
R 2,955.75
Each
units
1000 Optical 12000rpm HTL/Push Pull Solid shaft 10mm 8 → 30 V dc - - IP65 - - 58 Dia.mm -
RS stock no. 818-8824
Mfr. Part No.HEDL-5540#A12
BrandBroadcom
R 792.65
Each
units
500 Incremental 30000rpm Push Pull Hollow 6mm 4.5 → 5.5 V dc 500 CPR 500Steps - - 18.3mm 41.1mm 30mm
RS stock no. 701-4264
Mfr. Part No.DPL12H2424A24KR
R 96.92
Each
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 26.4mm 13.2mm 12.4mm
RS stock no. 827-5029
Mfr. Part No.ENT1J-D28-L00128L
BrandBourns
R 1,171.28
Each
units
128 Optical 3000rpm Push Pull Solid 1/4in 5 V dc 2 Bit - IP40 - - 22.2 Dia.mm 23.37mm
RS stock no. 181-1514
Mfr. Part No.G 305.010A103000
BrandBaumer
R 2,588.04
Each
units
50 Optical 6000rpm HTL/Push Pull Solid shaft 7mm 10 → 30 V dc - - IP30 - - 62x62mm -
RS stock no. 167-0119
Mfr. Part No.ENT1J-D28-L00128L
BrandBourns
R 938.46
Each (In a Tray of 42)
units
128 Optical 3000rpm Push Pull Solid 1/4in 5 V dc 2 Bit - IP40 - - 22.2 Dia.mm 23.37mm
RS stock no. 291-4254
Mfr. Part No.RS38-O/1000EQ.11KB
BrandHengstler
R 3,370.08
Each
units
1000 Incremental 10000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 46.5mm - -
RS stock no. 918-9115
Mfr. Part No.8.KIH40.5442.2500
BrandKubler
R 2,708.90
Each
units
2500 Incremental - Push Pull Hollow 8mm 10 → 30 V dc - - IP64 - - 46mm 59.7mm
RS stock no. 796-7859
Mfr. Part No.HEDS-5540#A02
BrandBroadcom
R 719.77
Each
units
- Incremental 30000rpm Push Pull - - -0.5 → 7 V dc 500 CPR - - - 18.3mm 41.1mm 30mm