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.

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Omschrijving Prijs Pulses Per Revolution Shaft Style Shaft Diameter Encoder Reading Encoder Signal Mounting Type Shaft Length Index Output Maximum Operating Speed Mounting Hole Diameter Current Rating
RS-stocknr. 167-5430
FabrikantnummerEMS22A50-D28-LT6
FabrikantBourns
38,443 €
Each (In a Box of 42)
Aantal stuks
1024 (Position) Plain 3.17 mm Absolute Digital Square Wave Through Hole 22.23mm Not Indexed 10000rpm 10.67mm -
RS-stocknr. 789-9490
FabrikantnummerEMS22A50-D28-LT6
FabrikantBourns
54,04 €
Each
Aantal stuks
1024 (Position) Plain 3.17 mm Absolute Digital Square Wave Through Hole 22.23mm Not Indexed 10000rpm 10.67mm -
RS-stocknr. 781-6830
FabrikantnummerPEC11R-4220K-S0024
FabrikantBourns
1,73 €
Each
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 20mm - 60rpm 1mm -
RS-stocknr. 167-5385
FabrikantnummerPEC11R-4220K-S0024
FabrikantBourns
1,235 €
Each (In a Bag of 75)
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 20mm - 60rpm 1mm -
RS-stocknr. 737-7767
FabrikantnummerPEC11R-4220F-S0024
FabrikantBourns
1,48 €
Each
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 167-4659
FabrikantnummerPEC11R-4220F-S0024
FabrikantBourns
1,049 €
Each (In a Bag of 75)
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 789-9658
FabrikantnummerPEC12R-4217F-S0012
FabrikantBourns
0,98 €
Each
Aantal stuks
12 Flat 6 mm Incremental Digital Square Wave Through Hole 17.5mm Not Indexed 100rpm 1 mm, 2 x 2.1 mm -
RS-stocknr. 167-5401
FabrikantnummerPEC12R-4217F-S0012
FabrikantBourns
0,797 €
Each (In a Bag of 75)
Aantal stuks
12 Flat 6 mm Incremental Digital Square Wave Through Hole 17.5mm Not Indexed 100rpm 1 mm, 2 x 2.1 mm -
RS-stocknr. 167-3625
FabrikantnummerEAW0J-B24-AE0128L
FabrikantBourns
5,557 €
Each (In a Tray of 45)
Aantal stuks
128 Plain with Slot 6.35 mm Absolute Digital Bracket Mount 19.05mm Not Indexed 120rpm 9mm -
RS-stocknr. 263-2918
FabrikantnummerEAW0J-B24-AE0128L
FabrikantBourns
6,49 €
Each
Aantal stuks
128 Plain with Slot 6.35 mm Absolute Digital Bracket Mount 19.05mm Not Indexed 120rpm 9mm -
RS-stocknr. 789-9541
FabrikantnummerPEC11R-4215K-N0024
FabrikantBourns
1,45 €
Each
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 15mm Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 789-9526
FabrikantnummerPEC11R-4020K-S0024
FabrikantBourns
1,31 €
Each
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 167-5393
FabrikantnummerPEC11R-4215K-N0024
FabrikantBourns
1,098 €
Each (In a Bag of 75)
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 15mm Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 167-5391
FabrikantnummerPEC11R-4020K-S0024
FabrikantBourns
0,979 €
Each (In a Bag of 75)
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 737-7742
FabrikantnummerPEC11R-4215K-S0024
FabrikantBourns
1,93 €
Each
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 15mm Not Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 167-4655
FabrikantnummerPEC11R-4220F-N0024
FabrikantBourns
1,049 €
Each (In a Bag of 75)
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave - 20mm Not Indexed 60rpm 7mm -
RS-stocknr. 167-5311
FabrikantnummerPEC12R-4217F-S0024
FabrikantBourns
0,804 €
Each (In a Bag of 75)
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave Through Hole 17.5mm - 100rpm 1mm -
RS-stocknr. 737-7773
FabrikantnummerPEC12R-4220F-S0024
FabrikantBourns
1,10 €
Each
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave Through Hole 9mm Not Indexed 100rpm 1 mm, 2.1 x 2 mm -
RS-stocknr. 789-9614
FabrikantnummerPEC12R-2225F-S0024
FabrikantBourns
1,05 €
Each
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave Through Hole 14mm Not Indexed 100rpm 1 mm, 2 x 2.1 mm -
RS-stocknr. 789-9582
FabrikantnummerPEC11S-929K-N0015
FabrikantBourns
2,05 €
Each
Aantal stuks
15 Knurl 6 mm Incremental Digital Square Wave Surface Mount 9mm Not Indexed 60rpm 2.5mm -