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. 623-4215
FabrikantnummerEC12E24202A2
FabrikantAlps Alpine
0,43 €
Each
Aantal stuks
24 Flat - - - Through Hole 15mm Not Indexed - - -
RS-stocknr. 729-5624
FabrikantnummerEC11K1524402
FabrikantAlps Alpine
3,92 €
Each
Aantal stuks
15 Flat 5.975 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed - 1.6 x 1.9 mm, 2.65 x 1.55 mm, 1.05 mm, 2.1 mm -
RS-stocknr. 789-9523
FabrikantnummerPEC11R-4115K-S0018
FabrikantBourns
1,57 €
Each
Aantal stuks
18 Knurl 6 mm Incremental Digital Square Wave Through Hole 15mm Not Indexed 60rpm 2.6 x 1.8 mm, 1 mm -
RS-stocknr. 729-5561
FabrikantnummerEC11E15204A3
FabrikantAlps Alpine
2,54 €
Each
Aantal stuks
15 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed - 1 mm, 2.6 x 1.5 mm -
RS-stocknr. 172-8117
FabrikantnummerEC11K1524402
FabrikantAlps Alpine
2,783 €
Each (In a Tray of 100)
Aantal stuks
15 Flat 5.975 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed - 1.05 mm, 2.1 mm, 1.6 x 1.9 mm, 2.65 x 1.55 mm -
RS-stocknr. 623-4186
FabrikantnummerEC12E1220401
FabrikantAlps Alpine
0,78 €
Each
Aantal stuks
12 Flat - - - Through Hole 20mm Not Indexed - - -
RS-stocknr. 167-5394
FabrikantnummerPEC11R-4220K-N0024
FabrikantBourns
0,919 €
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. 167-3572
FabrikantnummerECW0J-B24-AC0006L
FabrikantBourns
3,363 €
Each (In a Tray of 45)
Aantal stuks
6 Plain with Slot 6.35 mm Incremental Digital Square Wave Panel Mount 19mm Not Indexed 120rpm 9mm -
RS-stocknr. 172-8083
FabrikantnummerEC05E1220401
FabrikantAlps Alpine
1,355 €
Each (On a Reel of 2000)
Aantal stuks
12 Hollow 2.2 mm Incremental - Bracket Mount, Surface Mount - Not Indexed - 0.62mm -
RS-stocknr. 729-5536
FabrikantnummerEC05E1220401
FabrikantAlps Alpine
2,08 €
Each
Aantal stuks
12 Hollow 2.2 mm Incremental - Bracket Mount, Surface Mount - Not Indexed - 0.62mm -
RS-stocknr. 167-4660
FabrikantnummerPEC12R-4220F-S0024
FabrikantBourns
0,776 €
Each (In a Bag of 75)
Aantal stuks
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 100rpm 1 mm, 2.1 x 2 mm -
RS-stocknr. 162-2502
FabrikantnummerPEC12R-2225F-S0024
FabrikantBourns
0,759 €
Each (In a Bag of 75)
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. 737-7742
FabrikantnummerPEC11R-4215K-S0024
FabrikantBourns
1,44 €
Each
Aantal stuks
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 15mm Not Indexed 60rpm 2.6 x 1.8 mm, 1 mm -
RS-stocknr. 167-5390
FabrikantnummerPEC11R-4115K-S0018
FabrikantBourns
1,197 €
Each (In a Bag of 75)
Aantal stuks
18 Knurl 6 mm Incremental Digital Square Wave Through Hole 15mm Not Indexed 60rpm 1 mm, 2.6 x 1.8 mm -
RS-stocknr. 167-4651
FabrikantnummerPEC11R-4215K-S0024
FabrikantBourns
1,121 €
Each (In a Bag of 75)
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. 737-7773
FabrikantnummerPEC12R-4220F-S0024
FabrikantBourns
1,07 €
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. 265-2906
FabrikantnummerEC11B1520206
FabrikantAlps Alpine
1,32 €
Each
Aantal stuks
15 Slot - Incremental Digital Square Wave Through Hole 25mm - - 2.1 x 1.8 mm, 1 mm -
RS-stocknr. 172-7599
FabrikantnummerEC12E24202A2
FabrikantAlps Alpine
0,392 €
Each (In a Tray of 110)
Aantal stuks
24 Flat - - - Through Hole 15mm Not Indexed - - -
RS-stocknr. 172-7664
FabrikantnummerEC11E15204A3
FabrikantAlps Alpine
2,297 €
Each (In a Tray of 120)
Aantal stuks
15 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed - 1 mm, 2.6 x 1.5 mm -
RS-stocknr. 263-2839
FabrikantnummerECW0J-B24-AC0006L
FabrikantBourns
4,08 €
Each
Aantal stuks
6 Plain with Slot 6.35 mm Incremental Digital Square Wave Panel Mount 19mm Not Indexed 120rpm 9mm -
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