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. 481-7420
Mfr. Part No.GI355.070R031
BrandBaumer
SGD427.71
Each
units
3600 Optical 10000rpm HTL/Push Pull Solid shaft 10mm 4.75 → 30 V dc - - IP54 - - 58 Dia.mm -
RS Stock No. 167-5386
Mfr. Part No.AMS22S5A1CLAFL336
BrandBourns
SGD71.679
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. 173-5559
Mfr. Part No.DPL12SHN24A21F2
SGD9.33
Each (In a Box of 500)
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 26mm 13.2mm 12.4mm
RS Stock No. 603-0524
Mfr. Part No.RE12D-100-201-1/E
SGD130.97
Each
units
100 Incremental - Quadrature Solid - 5 V dc - - - - 24mm - -
RS Stock No. 818-8836
Mfr. Part No.HEDS-5140#A06
BrandBroadcom
SGD28.09
Each
units
- Optical 30000rpm - Hollow 1/4in - 500 CPR 500Steps - - 5.98mm 25.4mm -
RS Stock No. 789-9355
Mfr. Part No.AMS22S5A1CLAFL336
BrandBourns
SGD82.38
Each
units
- Incremental 120rpm Analogue Solid 1/8in 5 V dc 12 Bit - IP50 - - 22.23 Dia.mm 15.62mm
RS Stock No. 818-8820
Mfr. Part No.HEDL-5540#A11
BrandBroadcom
SGD74.72
Each
units
500 Incremental 30000rpm Push Pull Hollow 4mm 4.5 → 5.5 V dc 500 CPR 500Steps - - 18.3mm 41.1mm 30mm
RS Stock No. 498-1802
Mfr. Part No.BDK 16 24K 100 L5 5
BrandBaumer
SGD364.73
Each
units
100 Optical 6000rpm HTL/Push Pull Solid shaft 5mm 10 → 30 V dc - - IP64 - - 30 Dia.mm -
RS Stock No. 178-3103
Mfr. Part No.HEDL-5540#A11
BrandBroadcom
SGD67.51
Each (In a Tray of 20)
units
500 Incremental 30000rpm Push Pull Hollow 4mm 4.5 → 5.5 V dc 500 CPR 500Steps - - 18.3mm 41.1mm 30mm
RS Stock No. 795-1062
BrandRS PRO
SGD333.76
Each
units
2048 Incremental 8000rpm HTL Inverted Solid 10mm 5 → 30 V dc 2500 ppr - IP67 - - 58 Dia.mm 85mm
RS Stock No. 260-3948
Mfr. Part No.RI58-D/ 1024AD.37RB
BrandHengstler
SGD534.51
Each
units
1024 Incremental 6000rpm RS422 Hollow 12mm 5 V dc - 1024Steps IP64, IP65 RS422 41.5mm - -
RS Stock No. 499-7734
Mfr. Part No.BHF 16.25W.1024-12-5
BrandBaumer
SGD1,332.59
Each
units
1024 Optical 12000rpm HTL/Push Pull Hollow shaft 12mm 4.5 → 30 V dc - - IP42 - - 58 Dia.mm -
RS Stock No. 796-7821
Mfr. Part No.AEDR-8500-102
BrandBroadcom
SGD25.77
Each
units
- Incremental - Push Pull - - 4.5 → 5.5 V dc 304 LPI - - - 0.956mm 3.4mm 3.95mm
RS Stock No. 603-0546
Mfr. Part No.RE12D-300-201-1/E
SGD130.97
Each
units
300 Incremental - Quadrature Solid - 5 V dc - - - - 24mm - -
RS Stock No. 178-3143
Mfr. Part No.HEDS-5140#A06
BrandBroadcom
SGD22.82
Each (In a Tray of 50)
units
- Optical 30000rpm - Hollow 1/4in - 500 CPR 500Steps - - 5.98mm 25.4mm -
RS Stock No. 795-1113
BrandRS PRO
SGD397.13
Each
units
50 Incremental 6000rpm HTL Inverted Hollow 12mm 5 → 30 V dc 2500 ppr - IP65 - - 58 Dia.mm 44.5mm
RS Stock No. 168-0817
Mfr. Part No.DPL12H2424A24KR
SGD7.331
Each (In a Box of 500)
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 26.4mm 13.2mm 12.4mm
RS Stock No. 122-4632
Mfr. Part No.PFG05-E1KM0160
BrandSick
SGD427.20
Each
units
2500 Linear Measuring - - - - 7 → 30 V 0.06 mm - IP50, IP65 - 55mm 55mm 50mm
RS Stock No. 822-6392
Mfr. Part No.E6F-AB3C-C 360 5M
BrandOmron
SGD1,113.17
Each
units
360 Absolute 5000rpm NPN Open Collector Solid 10mm 5 → 12 V dc 10 Bit - IP65 BCD 85mm 60 Dia.mm -
RS Stock No. 701-4264
Mfr. Part No.DPL12H2424A24KR
SGD9.20
Each
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 26.4mm 13.2mm 12.4mm
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