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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Broadcom 256 Pulse Incremental Mechanical Rotary Encoder RS Stock No.: 714-0237 Mfr. Part No.: AEAT-601B-F06 Datasheets: $78.49 Each	Broadcom	256	-	-	Incremental	Quadrature Code	-	-	-	-	-
Bourns 15 Pulse Quadrature Mechanical Rotary Encoder with a 2 mm Flat (Inner Shaft), Slot (Outer Shaft) Shaft (Not RS Stock No.: 269-2406 Mfr. Part No.: PEC11D-4120F-H0015 Datasheets: $10.30 Each	Bourns	15	Flat (Inner Shaft), Slot (Outer Shaft)	2 mm	Quadrature	2-Bit Quadrature	-	-	Not Indexed	-	-
Alps Alpine 15 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5589 Mfr. Part No.: EC11E15244G1 Datasheets: $11.55 Each	Alps Alpine	15	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	-	2.6 x 1.5 mm, 1 mm
Wurth Elektronik 20 Pulse Incremental Mechanical Rotary Encoder with a 6 mm, Through Hole RS Stock No.: 185-4446 Mfr. Part No.: 482020514001 Datasheets: $7.345 Each (In a Pack of 2)	Wurth Elektronik	20	-	6 mm	Incremental	-	Through Hole	20mm	-	-	-
Elma 16 Pulse 2 bit Quadrature Mechanical Rotary Encoder with a 6 mm Slotted Shaft RS Stock No.: 241-2357 Mfr. Part No.: E33-VT6C2-M45T Datasheets: $63.541 Each (In a Box of 10)	Elma	16	Slotted	6 mm	2 bit Quadrature	Digital Square Wave	-	-	-	-	-
Alps Alpine 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft, Through Hole RS Stock No.: 265-1739 Mfr. Part No.: EC16B242040R Datasheets: $3.15 Each	Alps Alpine	24	Flat	6 mm	Incremental	-	Through Hole	25mm	-	-	1.2 mm, 2 x 2.1 mm
Elma Mechanical Rotary Encoder RS Stock No.: 224-2287 Mfr. Part No.: E37-VT6330-1 Datasheets: $123.04 Each	Elma	-	-	-	-	-	-	-	-	-	-
Omron 1000 ppr Pulse Incremental Mechanical Rotary Encoder with a 40 mm RS Stock No.: 288-3250 Mfr. Part No.: E6B2-CWZ1X 1000P/R 2M Datasheets: $683.21 Each	Omron	1000 ppr	-	40 mm	Incremental	-	-	-	-	-	-
Alps Alpine 15 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5561 Mfr. Part No.: EC11E15204A3 Datasheets: $6.02 Each	Alps Alpine	15	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	-	1 mm, 2.6 x 1.5 mm
Alps Alpine 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5804 Mfr. Part No.: EC12E24204A9 Datasheets: $2.76 Each	Alps Alpine	24	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	25mm	Not Indexed	-	1 mm, 2.1 x 2 mm
Elma Mechanical Rotary Encoder RS Stock No.: 224-2288 Mfr. Part No.: E37-VT6332-2-SET Datasheets: $178.89 Each	Elma	-	-	-	-	-	-	-	-	-	-
TE Connectivity 24 Pulse Incremental Mechanical Rotary Encoder with a 6.8 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 663-3211 Mfr. Part No.: DPL12SVN24A21F3 Datasheets: $20.22 Each	TE Connectivity	24	Flat	6.8 mm	Incremental	Digital Square Wave	Through Hole	21mm	Not Indexed	60rpm	1 mm, 1.1 mm
Alps Alpine 12 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 729-5775 Mfr. Part No.: EC12E1220406 Datasheets: $2.73 Each	Alps Alpine	12	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	20mm	Not Indexed	-	2.1 x 2 mm, 1 mm
Bourns 15 Pulse Quadrature Mechanical Rotary Encoder with a 2 mm Flat (Inner Shaft), Slot (Outer Shaft) Shaft (Not RS Stock No.: 269-2405 Mfr. Part No.: PEC11D-4120F-H0015 Datasheets: $7.728 Each (In a Tray of 100)	Bourns	15	Flat (Inner Shaft), Slot (Outer Shaft)	2 mm	Quadrature	2-Bit Quadrature	-	-	Not Indexed	-	-
Bourns 24 Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole RS Stock No.: 737-7767 Mfr. Part No.: PEC11R-4220F-S0024 Datasheets: $3.07 Each	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 20 Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole RS Stock No.: 623-4120 Mfr. Part No.: EC11B2024201 Datasheets: $12.76 Each	Alps Alpine	20	Flat	-	-	-	Through Hole	20mm	Not Indexed	-	-
Alps Alpine 24 Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole RS Stock No.: 623-4237 Mfr. Part No.: EC12E2424407 Datasheets: $4.62 Each	Alps Alpine	24	Flat	-	-	-	Through Hole	14mm	Not Indexed	-	-
Alps Alpine 15 Pulse Incremental Mechanical Rotary Encoder Slot Shaft, Through Hole RS Stock No.: 263-2930 Mfr. Part No.: EC11B152420G Datasheets: $5.85 Each	Alps Alpine	15	Slot	-	Incremental	Digital Square Wave	Through Hole	25mm	-	-	2.1 x 1.8 mm, 1 mm
Alps Alpine 15 Pulse Incremental Mechanical Rotary Encoder Slot Shaft, Through Hole RS Stock No.: 172-8123 Mfr. Part No.: EC11B152420G Datasheets: $5.843 Each (In a Tray of 70)	Alps Alpine	15	Slot	-	Incremental	Digital Square Wave	Through Hole	25mm	-	-	1 mm, 2.1 x 1.8 mm
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: $4.27 Each	Alps Alpine	12	Flat	6 mm	Incremental	Digital Square Wave	Through Hole	25mm	Not Indexed	-	1 mm, 2.1 x 2 mm

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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