The FGH40K-2048G-90G-NG/20P is a heavy-duty incremental encoder model that has become increasingly difficult to source in the market. To address the needs of customers facing supply shortages, we provide a fully customized 1:1 replacement encoder solution. Our design precisely matches the original mechanical interface, resolution (2048 pulses), and electrical signal output, allowing seamless system integration without any changes to mounting or wiring. Each replacement unit is produced under strict quality control with a standard delivery time of 15 working days, helping customers minimize downtime and maintain stable production operations.
The FGH40K-2048G-90G-NG/20P is widely used in heavy industrial automation, cranes, steel processing lines, and large conveyor systems where robust structure and signal stability are essential. Our replacement version maintains high durability and environmental resistance, ensuring reliable operation even in vibration-prone and high-temperature environments. Customers in Europe, Southeast Asia, and South America have successfully implemented our replacement encoders, confirming their performance consistency with the original models.
Replacement solution reference image.


Incremental Encoder Specifications (FG(H)40 Series)
Construction type
- Solid shaft B5 (flange) or B35 (flange + foot)
- H = Hollow shaft
- HJ = Hollow shaft (isolated)
Series
[Series information not explicitly listed in the image]
Electrical connection
- R = Terminal strip in a terminal box / 12-pole round connector Bundy
- C = Cable outlet / FCC connector in a terminal box
- KK = Second terminal box (available output signals on request)
Pulses per rotation
- Square pulses: 500, 600, 1000, 1024, 1200, 1300, 2000, 2048, 2400, 2500, ...1 million
- Sinus signals: 500, 600, 1000, 1024, 1200, 1300, 2500
- Other pulse ratios on request
Signal output
- Basic version: 0°, 90°, each with inverted signals
- - = without reference pulse
- NG = Reference pulse with inverted signal
Additional options signal outputs (see p.11)
- 2F = Option 2F; B2 = Option B2
- B = Option B; B3 = Option B3
Overspeed switch (see p.11)
- - = without option S
- S = Option S
Shaft
Type | Specification |
---|---|
with feather key/keyway | |
Solid shaft | 16P = Ø 16 H7 mm (option H6) |
18P = Ø 18 H7 mm | |
20P = Ø 20 H7 mm | |
Hollow shaft | 16PF = Ø 16 H7 mm |
18PF = Ø 18 H7 mm | |
20PF = Ø 20 H7 mm | |
with clamping | |
Hollow shaft | 16K = Ø 16 H7 mm |
25K = Ø 25 H7 mm |