

MANUFACTURER DOCUMENTATION
Overview
KOFON publishes separate P0, P1 and Z ratings for the FG090 frame. The configurations here use P1 values and retain each ratio, stage and backlash limit together.
Read original manufacturer specification ↗Published series specifications
Series ranges describe the product family. They are not interchangeable operating points.
- Frame
- FG090
- Documented P1 ratios in this listing
- 4–60, discrete ratios
- P1 nominal output torque
- 60–100 Nm; configuration-dependent
- P1 backlash
- ≤3 arcmin single-stage; ≤5 arcmin two-stage
- Permitted average input speed
- 3,000 rpm
- Maximum input speed
- 6,000 rpm
- Ingress protection
- IP65
- P1 lubrication
- Grease; P0 and Z use oil
Design & options
- Helical gears
- Integrated output flange and ring gear
- Separate precision and load grades
Applications to discuss
- Servo positioning
- Automation axes
Model configuration table
16 source-backed configurations. Torque is in Nm, input speed in rpm and backlash in arcmin. The note preserves the rating conditions and precision grade.
| Model | Ratio | Rated torque Nm | Backlash arcmin | Rated input rpm | Mounting | Rating conditions | Source |
|---|---|---|---|---|---|---|---|
| FG090-P1 | 4 | 80 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 5 | 80 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 6 | 80 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 7 | 80 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 8 | 75 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 9 | 60 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 10 | 60 | 3 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 16 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 20 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 25 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 32 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 35 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 40 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 45 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 50 | 100 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
| FG090-P1 | 60 | 90 | 5 | 3000 | Not stated | Catalog nominal output torque; P1 grade, 20°C reference ambient | Original ↗ |
Selection checks for FG090 Precision Planetary Gearbox
Use these questions with the manufacturer’s current model sheet and your actual operating conditions.
- Use one FG090 configuration row for ratio and nominal torque. The published 60–100 Nm P1 range is not the rating of every ratio.
- Confirm P1 grade and stage: its backlash limit is 3 arcmin for one stage and 5 arcmin for two stages. P0 and Z grades have different data and lubrication.
https://www.kofon.com.cn/products_detail/50.html
Checked 2026-09-21. Image and catalog data: KOFON.
Related products

Boneng
P Industrial Planetary Gearbox
An industrial planetary gearbox family for high output torque and large reduction ratios. Published limits describe the family, not a single selectable operating point.
- Sizes
- P209–P236 / P309–P336
- Output torque
- 22–2,600 kNm
- Ratio
- 25–4,000

WANSHSIN
WVRB Precision Planetary Gearbox
A helical planetary series with a double-supported output structure. Compare frame size and ratio together: a larger reduction ratio does not necessarily increase the catalog torque rating.
- Frame sizes
- 042 / 060 / 090 / 115 / 140 / 180 / 220
- Ratio
- 3–100
- Rated output torque
- 10–2,000 Nm, depending on frame and ratio