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. 178-3257
Mfr. Part No.AEAT-601B-F06
BrandBroadcom
HK$179.11
Each (In a Box of 80)
units
- - - - - - - - - - - - - -
RS Stock No. 714-0237
Mfr. Part No.AEAT-601B-F06
BrandBroadcom
HK$195.02
Each
units
256 Incremental 12000rpm Quadrature - - 4.5 → 5.5 V dc - - - - - - -
RS Stock No. 447-6186
Mfr. Part No.D5.3501.A331.0000
BrandKubler
HK$2,189.51
Each
units
- Linear Measuring - Analogue - - - - - - - 40mm 55mm 40mm
RS Stock No. 492-9163
Mfr. Part No.ARS60-G4A00360
BrandSick
HK$5,469.75
Each
units
360 Absolute 10000rpm Gray Solid 10mm 10 → 32 V dc - 360Steps IP64, IP65, IP66 - 78.5mm - -
RS Stock No. 167-4549
Mfr. Part No.EM14A0D-C24-L032S
BrandBourns
HK$207.68
Each (In a Tube of 25)
units
32 Incremental 120rpm Quadrature Solid 3/8in 5 V dc 2 Bit - IP54 - 14.76mm 14.25mm 32.05mm
RS Stock No. 691-7692
Mfr. Part No.EM14A0D-C24-L032S
BrandBourns
HK$193.82
Each
units
32 Incremental 120rpm Quadrature Solid 3/8in 5 V dc 2 bit - IP54 - 14.76mm 14.25mm 32.05mm
RS Stock No. 260-3768
Mfr. Part No.RI32-O/1000ER.11KB
BrandHengstler
HK$1,415.96
Each
units
500 Incremental 6000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 27mm - -
RS Stock No. 167-4405
Mfr. Part No.ECW1J-B24-AC0024L
BrandBourns
HK$25.06
Each (In a Tray of 45)
units
24 Incremental 120rpm Quadrature Solid 9mm - 2 Bit - IP40 - 27.51mm 28.49mm 22.2mm
RS Stock No. 909-3326
Mfr. Part No.RO3500
HK$1,761.19
Each
units
- Incremental 12000rpm HTL, TTL Hollow 12mm 4.5 → 30 V dc 10000 I/U - IP64 IO-Link - 58.5 Dia.mm 68.6mm
RS Stock No. 692-8610
Mfr. Part No.ECW1J-B24-AC0024L
BrandBourns
HK$33.71
Each
units
24 Incremental 120rpm Quadrature Solid 9mm - 2 Bit - IP40 - 27.51mm 28.49mm 22.2mm
RS Stock No. 265-2928
Mfr. Part No.EC11B152442D
HK$39.34
Each
units
- - - - - - - - - - - - - -
RS Stock No. 252-3915
Mfr. Part No.EC11B152442D
HK$30.55
Each (In a Pack of 5)
units
15 Incremental - Push Pull 6 mm Shaft 6mm 5 V dc - - - - 31.6mm 13.75mm 11.7mm
RS Stock No. 172-7679
Mfr. Part No.EC11B152442D
HK$28.163
Each (In a Tray of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 712-5424
Mfr. Part No.DFS60B-S4PA10000
BrandSick
HK$2,689.68
Each
units
10000 Incremental - HTL, TTL Solid 10mm 5 → 32 V dc - - IP65, IP67 - 40.1mm - -
RS Stock No. 492-9157
Mfr. Part No.ARS60-A4A08192
BrandSick
HK$5,283.78
Each
units
8192 Absolute 10000rpm Gray, SSI Solid 10mm 10 → 32 V dc - 8192Steps IP64, IP65, IP66 - 78.5mm - -
RS Stock No. 260-3724
Mfr. Part No.RI32-O/ 100ER.11KB
BrandHengstler
HK$1,419.91
Each
units
100 Incremental 6000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 27mm - -
RS Stock No. 386-0063
Mfr. Part No.E6B2-CWZ6C 360P/R 2M
BrandOmron
HK$1,381.62
Each
units
360 Incremental 6000rpm - Radial - 5 → 24 V dc - - - - 59mm - -
RS Stock No. 480-0551
Mfr. Part No.RC58/0360EK.42PGB
BrandHengstler
HK$3,149.67
Each
units
- Absolute 10000rpm Gray Solid 10mm 10 → 30 V dc - 360Steps IP64, IP67 - - - -
RS Stock No. 791-8554
Mfr. Part No.EBR7912EBI-CA-KA
BrandSensitec
HK$359.70
Each
units
- Incremental - HTL, TTL - - 3.3 → 5 V dc - 4096Steps - - 15mm 15mm 7.2mm
RS Stock No. 260-3780
Mfr. Part No.RI32-O/ 1024ER.11KB
BrandHengstler
HK$1,473.46
Each
units
1024 Incremental 6000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 27mm - -
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