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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Description Price 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庫存編號 663-3170
製造零件編號DPL12V2424A24KR
HK$55.09
單位
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 168-0820
製造零件編號DPL12V2424A24KR
HK$27,358.63
毎卷:1000 個
Reel(s)
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 172-8305
製造零件編號DPL12VN24A24KR
HK$31.097
個 (以毎盒:1000)
單位
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 663-3186
製造零件編號DPL12V2424A20FG
HK$26.10
單位
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1.1mm -
RS庫存編號 663-3189
製造零件編號DPL12V2424A20FR
HK$70.54
單位
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1.1mm -
RS庫存編號 663-3192
製造零件編號DPL12SVN24A25K1
HK$34.52
單位
24 Knurl 6.8 mm Incremental Digital Square Wave Through Hole 25mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 663-3233
製造零件編號DPL12SV2424A21F3
HK$42.86
單位
24 Flat 6.8 mm Incremental Digital Square Wave Through Hole 21mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 663-3195
製造零件編號DPL12V2424A24KB
HK$26.10
單位
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 164-0517
製造零件編號DPL12SV2424A21F1
HK$36,081.00
毎盒:1000 個
Box(es)
24 Flat 6.8 mm Incremental Digital Square Wave Through Hole 21mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 663-3211
製造零件編號DPL12SVN24A21F3
HK$73.02
單位
24 Flat 6.8 mm Incremental Digital Square Wave Through Hole 21mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 663-3224
製造零件編號DPL12SV2424A21F1
HK$48.19
單位
24 Flat 6.8 mm Incremental Digital Square Wave Through Hole 21mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 168-0825
製造零件編號DPL12SVN24A21F2
HK$33,195.17
毎卷:1000 個
Reel(s)
24 Flat 6.8 mm Incremental Digital Square Wave Through Hole 21mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 663-3173
製造零件編號DPL12VN24A24KB
HK$50.72
單位
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 136-1847
製造零件編號DPL12SV2424A21F3
HK$30,783.95
毎盒:1000 個
Box(es)
24 Flat 6.8 mm Incremental Digital Square Wave Through Hole 21mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 164-0522
製造零件編號DPL12V2424A24KB
HK$28,665.00
毎盒:1000 個
Box(es)
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 164-0518
製造零件編號DPL12SV2424A25K2
HK$36,081.00
毎盒:1000 個
Box(es)
24 Knurl 6.8 mm Incremental Digital Square Wave Through Hole 25mm Not Indexed 60rpm 1 mm, 1.1 mm -
RS庫存編號 168-0822
製造零件編號DPL12V2424A20FR
HK$27,358.63
毎卷:1000 個
Reel(s)
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1.1mm -
RS庫存編號 164-0523
製造零件編號DPL12V2424A24KG
HK$28,665.00
毎盒:1000 個
Box(es)
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 663-3158
製造零件編號DPL12VN24A24KR
HK$44.02
單位
24 Knurl 6 mm Incremental Digital Square Wave Through Hole 24mm Not Indexed 60rpm 1.1mm -
RS庫存編號 663-3198
製造零件編號DPL12V2424A20FB
HK$46.94
單位
24 Flat 6 mm Incremental Digital Square Wave Through Hole 20mm Not Indexed 60rpm 1.1mm -