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. 860-2755
Mfr. Part No.8.5020.2554.0500
BrandKubler
£200.24
Each
Units
500 Incremental 12000rpm Push Pull Hollow 12mm 10 → 30 V dc - - IP65 - - 50.8mm 45.1mm
RS Stock No. 481-7379
Mfr. Part No.GI355.070R015
BrandBaumer
£220.47
Each
Units
500 Incremental 10000rpm Push Pull Solid - 4.75 → 30 V dc - - IP54 - 65mm - -
RS Stock No. 150-423
Mfr. Part No.GI342.N707123000
BrandBaumer
£172.91
Each
Units
1024 Incremental 6000rpm Push Pull Hollow 12mm 4.75 → 30 V dc - - IP54 - 40mm - -
RS Stock No. 260-3718
Mfr. Part No.RI32-O/ 100ER.11KB
BrandHengstler
£142.85
Each
Units
50 Incremental 6000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 27mm - -
RS Stock No. 122-4632
Mfr. Part No.PFG05-E1KM0160
BrandSick
£249.65
Each
Units
2500 Linear Measuring - - - - 7 → 30 V 0.06 mm - IP50, IP65 - 55mm 55mm 50mm
RS Stock No. 823-3618
Mfr. Part No.Ri360P0-QR24M0-INCRX2-H1181
BrandTurck
£288.08
Each
Units
1024 Incremental - Push Pull - - 15 → 30 V dc - - IP67, IP69K - 24mm 78 (Dia.)mm 81mm
RS Stock No. 441-6134
Mfr. Part No.8.3720.5621.1024
BrandKubler
£155.88
Each
Units
1024 Incremental 6000rpm Push Pull Hollow 8mm 5 → 30 V dc - - IP65 - 44.5mm - -
RS Stock No. 289-4481
Mfr. Part No.61C22-01-04-02
BrandGrayhill
£34.46
Each
Units
- - - CMOS, TTL - - 5 V dc - - - - 46.61mm - -
RS Stock No. 712-5412
Mfr. Part No.DFS60B-S1PA10000
BrandSick
£229.89
Each
Units
10000 Incremental - HTL, TTL Solid 6mm 5 → 32 V dc - - IP65, IP67 - 40.1mm - -
RS Stock No. 447-6209
Mfr. Part No.D5.3501.A111.0000
BrandKubler
£330.64
Each
Units
- Linear Measuring - Analogue - - 15 → 28 V dc - - - - 40mm 55mm 40mm
RS Stock No. 260-3746
Mfr. Part No.0527042
BrandHengstler
£137.34
Each
Units
360 Incremental 6000rpm Push Pull Solid 6mm 10 → 30 V dc - 360Steps IP50 - 40mm - -
RS Stock No. 167-4406
Mfr. Part No.ECW1J-B24-BC0024L
BrandBourns
£3.293
Each (In a Tray of 45)
Units
24 Incremental 120rpm Quadrature Solid 9mm - 2 Bit - IP40 - 27.51mm 28.49mm 23.37mm
RS Stock No. 692-8614
Mfr. Part No.ECW1J-B24-BC0024L
BrandBourns
£3.75
Each
Units
24 Incremental 120rpm Quadrature Solid 9mm - 2 bit - IP40 - 27.51mm 28.49mm 23.37mm
RS Stock No. 260-3910
Mfr. Part No.RS0-550-170
BrandHengstler
£174.74
Each
Units
5000 Incremental 10000rpm Push Pull - - 5 V dc - - IP64, IP65, IP67 - 57.5mm - -
RS Stock No. 918-9095
Mfr. Part No.8.KIS40.1362.2048
BrandKubler
£94.95
Each
Units
2048 Incremental - RS422 Solid 6mm 5 V dc - - IP64 RS422 - 40mm 61.3mm
RS Stock No. 167-8669
Mfr. Part No.ECS78RBA103
BrandVishay
£13.116
Each (In a Box of 20)
Units
- Linear Measuring 150rpm - - - - - - - - 30.2mm 22.2 Dia.mm -
RS Stock No. 499-7885
Mfr. Part No.BHK 16.24K.1024-I2-5
BrandBaumer
£336.00
Each
Units
1024 Incremental 12000rpm Push Pull End - 10 → 30 V dc - 8192Steps IP42 - 41mm - -
RS Stock No. 806-8297
Mfr. Part No.ECS78RBA103
BrandVishay
£12.00
Each
Units
- Linear Measuring 150rpm - - - - - - - - 30.2mm 22.2 Dia.mm -
RS Stock No. 441-6061
Mfr. Part No.8.3700.1322.1024
BrandKubler
£125.33
Each
Units
1024 Incremental 6000rpm Push Pull Solid 6mm 5 → 30 V dc - - IP67 - 45.5mm - -
RS Stock No. 178-2945
Mfr. Part No.AEAT-6600-T16
BrandBroadcom
£3.861
Each (In a Tube of 970)
Units
- Incremental 30000rpm Push Pull - - -0.3 → 7 V dc 16 Bit - - - 0.9mm 5mm 4.4mm
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