Global Robotics
Laifual FHD is a ultra-thin hollow harmonic reducer for precision mechanical transmission. This record represents its U-I assembly in frame size 20. The manufacturer provides frame-specific rated torque at 2000 r/min input, separate peak and average-load limits, input-speed limits, backlash and mass. Each published reduction ratio retains its own torque configuration in Specifications. Cover image: Manufacturer series image; size may vary.
Product family: Laifual FHD U-I harmonic reducers
Source-backed claims. Configuration, workload and evidence type matter when comparing products.
3,500 r/min
Manufacturer specification
Configuration: FHD; U-I; frame size 20; Grease lubrication; average input speed
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
≤20 arcsec
Manufacturer specification
Configuration: FHD; U-I; frame size 20; Manufacturer table limit
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
10000-15000 h
Manufacturer specification
Configuration: FHD; U-I; frame size 20; Shared design-life cell spans every frame/ratio row in the original HTML table; manufacturer figure, not a warranty
8 50 1.25 2.3 1.6 4.6 8500 3500 ≤40 0.06 10000-15000
0.54 kg
Manufacturer specification
Configuration: FHD; U-I; frame size 20; U-I assembly; distinct U-III masses are excluded
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
6,500 r/min
Manufacturer specification
Configuration: FHD; U-I; frame size 20; Grease lubrication; maximum input speed
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
34 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 100:1; Average load limit
100 28 57 34 95
24 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 50:1; Average load limit
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
33 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 80:1; Average load limit
80 24 51 33 89
95 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 100:1; Momentary maximum; not continuous rated torque
100 28 57 34 95
69 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 50:1; Momentary maximum; not continuous rated torque
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
89 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 80:1; Momentary maximum; not continuous rated torque
80 24 51 33 89
28 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 100:1; At 2000 r/min input
100 28 57 34 95
17 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 50:1; At 2000 r/min input
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
24 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 80:1; At 2000 r/min input
80 24 51 33 89
100
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 100:1; Manufacturer-listed configuration
100 28 57 34 95
50
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 50:1; Manufacturer-listed configuration
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
80
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 80:1; Manufacturer-listed configuration
80 24 51 33 89
57 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 100:1; During starting and stopping
100 28 57 34 95
39 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 50:1; During starting and stopping
20 50 17 39 24 69 6500 3500 ≤20 FHD-I:0.54 FHD-III:1.14
51 N·m
Manufacturer specification
Configuration: FHD; U-I; frame size 20; reduction ratio 80:1; During starting and stopping
80 24 51 33 89
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