The FGH40KK-8192G-90G-NG/20P is a high-resolution heavy-duty incremental encoder widely used in metallurgical processes, steel rolling mills, and other demanding industrial applications. As the original model is increasingly difficult to source, we provide a fully customized 1:1 replacement solution. Our replacement replicates all key parameters of the original encoder, including mechanical dimensions, pulse resolution, shaft interface, and electrical output. This ensures direct compatibility with existing systems, allowing for seamless installation without modification. Our efficient production process enables short delivery times, helping customers overcome procurement challenges and maintain uninterrupted industrial operations.
In application, the FGH40KK-8192G-90G-NG/20P is known for its robustness, precision, and reliability under harsh conditions such as vibration, extreme temperatures, and dust exposure. Our replacement encoders preserve these essential features while offering flexibility for non-standard requirements, including alternative connector types, shaft modifications, or customized mounting options. This makes our solution ideal for heavy-duty machinery, rolling lines, and automated metallurgical systems that require stable and accurate feedback for continuous operation. The replacement solution has been successfully applied in regions including the Middle East, Russia, Southeast Asia, Indonesia, and South America, demonstrating its global reliability and adaptability.
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 |