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. 188-3526
Mfr. Part No.EAL580-BNC.5WPT.13160.A
BrandBaumer
£608.00
Each
Units
- Optical 6000rpm - Hollow shaft 12mm 10 → 30 V dc MT16 bit, ST 13 bit - IP65 PROFINET - 58 Dia.mm -
RS Stock No. 136-7757
Mfr. Part No.842E-SIP6BA
£1,030.00
Each
Units
262144 Absolute 6000rpm Analogue, Binary Hollow 8mm 10 → 30 V 18 Bit 262144 IP65, IP67 Ethernet - 63 Dia.mm 71.5mm
RS Stock No. 388-5371
Mfr. Part No.WDG58B-360-ABN-I05-K3
£163.99
Each
Units
360 Incremental 8000rpm TTL Inverted Solid - 4.75 → 5.5 V dc - - IP65, IP67 - 83mm - -
RS Stock No. 188-3525
Mfr. Part No.EAL580-BNC.5WEN.13160.A
BrandBaumer
£643.00
Each
Units
- Optical 6000rpm - Hollow shaft 12mm 10 → 30 V dc MT16 bit, ST 13 bit - IP65 Ethernet/IP - 58 Dia.mm -
RS Stock No. 136-7756
Mfr. Part No.842E-SIP5BA
£1,030.00
Each
Units
262144 Absolute 6000rpm Analogue, Binary Hollow 1/4in 10 → 30 V 18 Bit 262144 IP65, IP67 Ethernet - 63 Dia.mm 71.5mm
RS Stock No. 188-3524
Mfr. Part No.EAL580-BNC.5WEC.13160.A
BrandBaumer
£608.00
Each
Units
- Optical 6000rpm - Hollow shaft 12mm 10 → 30 V dc MT16 bit, ST 13 bit - IP65 EtherCAT - 58 Dia.mm -
RS Stock No. 136-7755
Mfr. Part No.842E-SIP4BA
£951.00
Each
Units
262144 Absolute 9000rpm Analogue, Binary Solid 10mm 10 → 30 V 18 Bit 262144 IP65, IP67 Ethernet - 60 Dia.mm 84mm
RS Stock No. 188-3523
Mfr. Part No.EAL580-SC0.5WPT.13160.A
BrandBaumer
£536.00
Each
Units
- Optical 6000rpm - Solid shaft 10mm 10 → 30 V dc MT16 bit, ST 13 bit - IP65 PROFINET - 58 Dia.mm -
RS Stock No. 2550981030
Mfr. Part No.E69-C04B
BrandOmron
£15.67
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2550981070
Mfr. Part No.E6F-AG5C-C 720 2M
BrandOmron
£389.00
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2508935768
Mfr. Part No.SE 060
BrandSimpson
£220.08
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2551002312
Mfr. Part No.H8PS-32BP
BrandOmron
£1,121.00
Each
Units
- - - - - - - - - - - - - -
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