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.

228 Products showing for Mechanical Rotary Encoders

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Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 789-9557P Mfr. Part No.: PEC11R-4225F-N0024 Datasheets: $3.21 Each (Supplied in a Tray)	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	25mm	Not Indexed	60rpm	1 mm, 2.6 x 1.8 mm
Alps Alpine 9 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5599 Mfr. Part No.: EC11E09244AQ Datasheets: $11.89 Each	Alps Alpine	9	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	-	2.6 x 1.5 mm, 1 mm
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 737-7748P Mfr. Part No.: PEC11R-4215F-S0024 Datasheets: $3.33 Each (Supplied in a Box)	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	15mm	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.: 737-7739P Mfr. Part No.: PEC11R-4015F-S0024 Datasheets: $3.33 Each (Supplied in a Tray)	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	15mm	Not Indexed	60rpm	2.6 x 1.8 mm, 1 mm
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 789-9557 Mfr. Part No.: PEC11R-4225F-N0024 Datasheets: $3.35 Each	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	25mm	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.: 737-7767P Mfr. Part No.: PEC11R-4220F-S0024 Datasheets: $3.38 Each (Supplied in a Box)	Bourns	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	60rpm	1 mm, 2.6 x 1.8 mm
Wurth Elektronik 20 Pulse Incremental Mechanical Rotary Encoder with a 6 mm, Through Hole RS Stock No.: 185-4446P Mfr. Part No.: 482020514001 Datasheets: $6.85 Each (Supplied in a Tray)	Wurth Elektronik	20	-	6 mm	Incremental	-	Through Hole	20mm	-	-	-
Bourns 18 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 737-7736P Mfr. Part No.: PEC11R-4115F-S0018 Datasheets: $2.95 Each (Supplied in a Bag)	Bourns	18	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	15mm	Not Indexed	60rpm	2.6 x 1.8 mm, 1 mm
Omron Mechanical Rotary Encoder with a 4 mm, Servo Mount RS Stock No.: 215-8849 Mfr. Part No.: E69-C04B Datasheets: $34.63 Each	Omron	-	-	4 mm	-	-	Servo Mount	6mm	-	-	-
Bourns 512 Pulse Incremental Mechanical Rotary Encoder with a 6.34 mm Plain Shaft (Indexed), Bracket Mount RS Stock No.: 737-7694 Mfr. Part No.: EMS22D51-B28-LS5 Datasheets: $75.96 Each	Bourns	512	Plain	6.34 mm	Incremental	Digital Square Wave	Bracket Mount	22.23mm	Indexed	10000rpm	-
Bourns 20 Pulse Incremental Mechanical Rotary Encoder with a 6 mm (Not Indexed), PCB Mount RS Stock No.: 205-9736 Mfr. Part No.: PEC11H-4120F-S0020 Datasheets: $3.25 Each (In a Tray of 75)	Bourns	20	-	6 mm	Incremental	Digital Square Wave	PCB Mount	20mm	Not Indexed	-	-
Bourns 512 Pulse Incremental Mechanical Rotary Encoder with a 6.34 mm Plain Shaft (Indexed), Bracket Mount RS Stock No.: 737-7694P Mfr. Part No.: EMS22D51-B28-LS5 Datasheets: $76.85 Each (Supplied in a Bag)	Bourns	512	Plain	6.34 mm	Incremental	Digital Square Wave	Bracket Mount	22.23mm	Indexed	10000rpm	-
Bourns 256 Pulse Incremental Mechanical Rotary Encoder with a 3.17 mm Plain Shaft (Indexed), Bracket Mount RS Stock No.: 737-7697P Mfr. Part No.: EMS22Q51-D28-LT4 Datasheets: $82.84 Each (Supplied in a Box)	Bourns	256	Plain	3.17 mm	Incremental	Digital Square Wave	Bracket Mount	22.23mm	Indexed	10000rpm	-
Bourns 256 Pulse Incremental Mechanical Rotary Encoder with a 3.17 mm Plain Shaft (Indexed), Bracket Mount RS Stock No.: 737-7697 Mfr. Part No.: EMS22Q51-D28-LT4 Datasheets: $84.50 Each	Bourns	256	Plain	3.17 mm	Incremental	Digital Square Wave	Bracket Mount	22.23mm	Indexed	10000rpm	-
Bourns 12 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 789-9513 Mfr. Part No.: PEC11R-4020F-N0012 Datasheets: $3.07 Each	Bourns	12	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	60rpm	2.6 x 1.8 mm, 1 mm
Bourns 512 Pulse Incremental Mechanical Rotary Encoder with a 6.34 mm Plain Shaft (Indexed), Bracket Mount RS Stock No.: 167-4663 Mfr. Part No.: EMS22D51-B28-LS5 Datasheets: $62.391 Each (In a Box of 42)	Bourns	512	Plain	6.34 mm	Incremental	Digital Square Wave	Bracket Mount	22.23mm	Indexed	10000rpm	-
TE Connectivity 24 Pulse Incremental Mechanical Rotary Encoder with a 6.8 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 168-0829 Mfr. Part No.: DPL12SVN24A21F3 Datasheets: $9.218 Each (In a Box of 1000)	TE Connectivity	24	Flat	6.8 mm	Incremental	Digital Square Wave	Through Hole	21mm	Not Indexed	60rpm	1 mm, 1.1 mm
Omron Mechanical Rotary Encoder with a 10 mm RS Stock No.: 215-8851 Mfr. Part No.: E69-C10M Datasheets: $389.72 Each	Omron	-	-	10 mm	-	-	-	-	-	-	-
Bourns 10 Pulse Incremental Mechanical Rotary Encoder with a 3 mm (Not Indexed) RS Stock No.: 269-2413 Mfr. Part No.: PER231-P19-N0010 Datasheets: $4.77 Each	Bourns	10	-	3 mm	Incremental	2-Bit Quadrature	-	-	Not Indexed	-	-
Bourns 1024 (Position) Pulse Absolute Mechanical Rotary Encoder with a 3.17 mm Plain Shaft (Not Indexed), Through Hole RS Stock No.: 789-9490P Mfr. Part No.: EMS22A50-D28-LT6 Datasheets: $96.88 Each (Supplied in a Tray)	Bourns	1024 (Position)	Plain	3.17 mm	Absolute	Digital Square Wave	Through Hole	22.23mm	Not Indexed	10000rpm	10.67mm

Mechanical Rotary Encoders

What are mechanical rotary encoders used for?

Types of mechanical rotary encoders

228 Products showing for Mechanical Rotary Encoders

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