Mechanical Rotary Encoders

Mechanical rotary encoders, also called shaft encoders, are electro-mechanical devices that convert the angular motions (movement around fixed points) of rotary shafts into either analogue or digital signals.

What are mechanical rotary encoders used for?

Applications that require precision shaft rotation (movement around a specific point) make use of mechanical rotary encoders.

These include industrial control machinery in factories, rotating radar platforms in satellite structures or computer input devices like trackballs and mice.

Types of mechanical rotary encoders

Absolute encoders:

have tracking functions to determine specific shaft positioning points in industrial equipment like CNC machines, lathes and bore machines.
maintain positioning data even when power is cut from the system. When the system is switched on again it begins operating from the point where it stopped previously.

Incremental (relative) encoders:

record deviations in shaft position points over certain time frames. With each new time frame after power is cut and switched on again the encoder starts recording from a predetermined reference and measures the distance between the previous point and the current point.

209 Products showing for Mechanical Rotary Encoders

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Bourns 12 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 789-9652 Mfr. Part No.: PEC12R-4220F-S0012 Datasheets: MYR5.59 Each	Bourns	12	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	100rpm	1 mm, 2 x 2.1 mm
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Knurl Shaft, Through Hole RS Stock No.: 781-6830 Mfr. Part No.: PEC11R-4220K-S0024 Datasheets: MYR7.82 Each	Bourns	24	Knurl	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	-	60rpm	1mm
Alps Alpine 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Indexed), Through Hole RS Stock No.: 729-5836 Mfr. Part No.: EC12E2420801 Datasheets: MYR8.24 Each	Alps Alpine	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	25mm	Indexed	-	2.1 x 2 mm, 1 mm
Bourns 18 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft, Through Hole RS Stock No.: 781-6827 Mfr. Part No.: PEC11R-4120F-S0018 Datasheets: MYR9.56 Each	Bourns	18	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	-	60rpm	1mm
Elma 16 PPR Pulse Mechanical Rotary Encoder with a 12.7 mm Slotted Shaft, Through Hole RS Stock No.: 283-5825 Mfr. Part No.: E33-VT612-M03T Datasheets: MYR101.10 Each	Elma	16 PPR	Slotted	12.7 mm	-	-	Through Hole	-	-	-	-
Bourns 10 Pulse Incremental Mechanical Rotary Encoder with a 3 mm (Not Indexed) RS Stock No.: 269-2417 Mfr. Part No.: PER351-P115-N0010 Datasheets: MYR16.575 Each (In a Tray of 550)	Bourns	10	-	3 mm	Incremental	Quadrature Code	-	-	Not Indexed	-	-
Bourns 12 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 789-9591 Mfr. Part No.: PEC12R-2120F-S0012 Datasheets: MYR5.59 Each	Bourns	12	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	9mm	Not Indexed	100rpm	1 mm, 2 x 2.1 mm
Omron Mechanical Rotary Encoder with a 6 mm RS Stock No.: 215-8850 Mfr. Part No.: E69-C06M Datasheets: MYR601.36 Each	Omron	-	-	6 mm	-	-	-	-	-	-	-
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 737-7732 Mfr. Part No.: PEC11R-4020F-S0024 Datasheets: MYR7.99 Each	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	60rpm	1 mm, 2.6 x 1.8 mm
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 167-5389 Mfr. Part No.: PEC11R-4020F-N0024 Datasheets: MYR5.244 Each (In a Bag of 75)	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	60rpm	1 mm, 2.6 x 1.8 mm
Alps Alpine 15 Pulse Incremental Mechanical Rotary Encoder with a 5.975 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5854 Mfr. Part No.: EC12D1524403 Datasheets: MYR5.58 Each	Alps Alpine	15	Flat	5.975 mm	Incremental	Digital Square Wave	Through Hole	17.5mm	Not Indexed	-	1.05 mm, 2.1 mm, 2.15 x 2.05 mm
Elma 12 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Round Shaft RS Stock No.: 241-2362 Mfr. Part No.: X4-P3B00-4S1 Datasheets: MYR807.34 1 Box of 1	Elma	12	Round	6 mm	Incremental	Digital Square Wave	-	-	-	-	-
Alps Alpine 12 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5839 Mfr. Part No.: EC12E1220813 Datasheets: MYR8.01 Each	Alps Alpine	12	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	25mm	Not Indexed	-	1 mm, 2.1 x 2 mm
Bourns 18 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Knurl Shaft (Not Indexed), Through Hole RS Stock No.: 167-5390 Mfr. Part No.: PEC11R-4115K-S0018 Datasheets: MYR6.679 Each (In a Bag of 75)	Bourns	18	Knurl	6 mm	Incremental	Digital Square Wave	Through Hole	15mm	Not Indexed	60rpm	1 mm, 2.6 x 1.8 mm
Bourns 128 Pulse Absolute Mechanical Rotary Encoder with a 6.35 mm Plain with Slot Shaft (Not Indexed), Bracket Mount RS Stock No.: 167-3625 Mfr. Part No.: EAW0J-B24-AE0128L Datasheets: MYR35.451 Each (In a Tray of 45)	Bourns	128	Plain with Slot	6.35 mm	Absolute	Digital	Bracket Mount	19.05mm	Not Indexed	120rpm	9mm
Alps Alpine 15 Pulse Incremental Mechanical Rotary Encoder Slot Shaft, Through Hole RS Stock No.: 263-2930 Mfr. Part No.: EC11B152420G Datasheets: MYR18.00 Each	Alps Alpine	15	Slot	-	Incremental	Digital Square Wave	Through Hole	25mm	-	-	2.1 x 1.8 mm, 1 mm
Elma 47 Pulse Absolute Mechanical Rotary Encoder with a 6 mm Round Shaft RS Stock No.: 241-2363 Mfr. Part No.: X4-P3C47-2S1 Datasheets: MYR836.41 1 Box of 1	Elma	47	Round	6 mm	Absolute	Gray Code	-	-	-	-	-
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 737-7764 Mfr. Part No.: PEC11R-4230F-S0024 Datasheets: MYR9.41 Each	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	30mm	Not Indexed	60rpm	2.6 x 1.8 mm, 1 mm
Alps Alpine 12 Pulse Incremental Mechanical Rotary Encoder with a 3.6 mm Hollow Shaft (Not Indexed), Through Hole RS Stock No.: 172-6281 Mfr. Part No.: EC10E1220505 Datasheets: MYR2.869 Each (In a Bag of 400)	Alps Alpine	12	Hollow	3.6 mm	Incremental	Digital Square Wave	Through Hole	-	Not Indexed	-	1 mm, 2.1 x 1.8 mm
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed) RS Stock No.: 167-4657 Mfr. Part No.: PEC11R-4225F-S0024 Datasheets: MYR5.881 Each (In a Bag of 75)	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	-	25mm	Not Indexed	60rpm	7mm

Mechanical Rotary Encoders

What are mechanical rotary encoders used for?

Types of mechanical rotary encoders

209 Products showing for Mechanical Rotary Encoders

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