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. 178-3259
Mfr. Part No.AEDB-9140-A14
BrandBroadcom
R 426.213
Each (In a Bag of 100)
units
- Incremental - Digital - - -0.5 → 7 V dc 500 CPR - - - 13.6mm 21.6mm 9.74mm
RS stock no. 499-7807
Mfr. Part No.BHG 16.25W.5000-B2-5
BrandBaumer
R 14,009.83
Each
units
5000 Optical 12000rpm HTL/Push Pull Hollow shaft 12mm 4.5 → 30 V dc - - IP42 - - 58 Dia.mm -
RS stock no. 189-2680
Mfr. Part No.EAL580-TNC.5WPT.18130.A/6105
BrandBaumer
R 8,984.95
Each
units
- Optical 6000rpm - Hollow shaft 12mm 10 → 30 V dc MT 13 bit, ST 18 bit - IP65 PROFINET - 58 Dia.mm -
RS stock no. 820-3737
Mfr. Part No.EIL580-TT12.5BN.01024.A
BrandBaumer
R 3,533.56
Each
units
1024 Optical 6000rpm HTL/Push Pull Hollow shaft 12mm 8 → 30 V dc - - IP65 - - 58 Dia.mm -
RS stock no. 260-0804
Mfr. Part No.40A60ABNG24K2
R 2,909.13
Each
units
60 Incremental 12000rpm HTL Solid - 10 → 30 V dc - - IP65, IP67 - 55mm - -
RS stock no. 481-7363
Mfr. Part No.GI355.070R013
BrandBaumer
R 4,679.85
Each
units
360 Optical 10000rpm HTL/Push Pull Solid shaft 10mm 4.75 → 30 V dc - - IP54 - - 58 Dia.mm -
RS stock no. 289-4481
Mfr. Part No.61C22-01-04-02
BrandGrayhill
R 1,057.26
Each
units
- - - CMOS, TTL - - 5 V dc - - - - 46.61mm - -
RS stock no. 918-9095
Mfr. Part No.8.KIS40.1362.2048
BrandKubler
R 2,087.61
Each
units
2048 Incremental - RS422 Solid 6mm 5 V dc - - IP64 RS422 - 40mm 61.3mm
RS stock no. 178-3265
Mfr. Part No.HEDS-9140#F00
BrandBroadcom
R 424.574
Each (In a Tray of 100)
units
- - - - - - - - - - - - - -
RS stock no. 795-1040
BrandRS PRO
R 3,565.24
Each
units
200 Incremental 8000rpm HTL Inverted Solid 10mm 5 → 30 V dc 2500 ppr - IP67 - - 58 Dia.mm 85mm
RS stock no. 480-0551
Mfr. Part No.RC58/0360EK.42PGB
BrandHengstler
R 9,715.02
Each
units
- Absolute 10000rpm Gray Solid 10mm 10 → 30 V dc - 360Steps IP64, IP67 SSI-Gray - - -
RS stock no. 179-7716
Mfr. Part No.D8.C100.0500.RC11.1200
BrandKubler
R 17,073.21
Each
units
- Measuring - Relay - - 9 → 30 V dc 14 Bit - IP67 CANOpen 108mm 98mm 68.4mm
RS stock no. 795-1028
BrandRS PRO
R 3,565.24
Each
units
1024 Incremental 10000rpm HTL Inverted Solid 6mm 5 → 30 V dc 2500 ppr - IP67 - - 58 Dia.mm 76mm
RS stock no. 481-7335
Mfr. Part No.GI333.M70R039
BrandBaumer
R 6,138.93
Each
units
50 Optical 6000rpm HTL/Push Pull Hollow shaft 12mm 4.75 → 30 V dc - - IP54 - - 58 Dia.mm -
RS stock no. 481-7408
Mfr. Part No.GI355.070R026
BrandBaumer
R 4,679.64
Each
units
1500 Optical 10000rpm HTL/Push Pull Solid shaft 10mm 4.75 → 30 V dc - - IP54 - - 58 Dia.mm -
RS stock no. 136-7769
Mfr. Part No.842E-MIP6BA
R 25,830.00
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. 189-2679
Mfr. Part No.EAL580-SC0.5WPT.18130.A/6105
BrandBaumer
R 7,935.16
Each
units
- Optical 6000rpm - Solid shaft 10mm 10 → 30 V dc MT 13 bit, ST 18 bit - IP65 PROFINET - 58 Dia.mm -
RS stock no. 701-4330
Mfr. Part No.DPL12SHN24A21F2
R 104.69
Each
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 26mm 13.2mm 12.4mm
RS stock no. 260-0797
Mfr. Part No.40A50ABNG24K2
R 2,905.98
Each
units
50 Incremental 12000rpm HTL Solid - 10 → 30 V dc - - IP65, IP67 - 55mm - -
RS stock no. 795-1019
BrandRS PRO
R 3,565.24
Each
units
512 Incremental 10000rpm HTL Inverted Solid 6mm 5 → 30 V dc 2500 ppr - IP67 - - 58 Dia.mm 76mm