Product details

FHG

Transmission & Mechanical Parts

Laifual

FHG

About this product

Laifual FHG is a precision harmonic reducer. This record represents the manufacturer's U-III assembly in frame size 50, as identified in its model-specific dimensional drawing. Specifications preserve the listed reduction-ratio configurations, separate rated, starting/stopping and instantaneous torque limits, input speeds, backlash, mass and design-life qualifiers. Manufacturer drawing and web-table discrepancies are flagged in the affected specification conditions. Cover image: Manufacturer series image; size may vary.

Model
FHG U-III; Size 50; ratio unspecified
Category
Transmission & Mechanical Parts, Components

Product family: Laifual FHG U-III harmonic reducers

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Allowable average input speed

3,500 r/min

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Average input speed under grease lubrication. Unresolved manufacturer-source conflict: this drawing states 3500 r/min; the current family web table states 2500 r/min (https://www.laifual.com/fhg/). Both published claims are retained; neither is treated as a correction.

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Allowable average input speed

3,500 r/min

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Average input speed under grease lubrication. Unresolved manufacturer-source conflict: this drawing states 3500 r/min; the current family web table states 2500 r/min (https://www.laifual.com/fhg/). Both published claims are retained; neither is treated as a correction.

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Allowable average input speed

3,500 r/min

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Average input speed under grease lubrication. Unresolved manufacturer-source conflict: this drawing states 3500 r/min; the current family web table states 2500 r/min (https://www.laifual.com/fhg/). Both published claims are retained; neither is treated as a correction.

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Backlash

≤20 arcsec

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Manufacturer backlash limit

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Backlash

≤20 arcsec

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Manufacturer backlash limit

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Backlash

≤20 arcsec

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Manufacturer backlash limit

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Design life

≥15000 h

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Manufacturer minimum design life; not a warranty; preserve the printed greater-than-or-equal qualifier. Family web tables may present unqualified values or a shared range; these are not equivalent claims.

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Design life

≥15000 h

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Manufacturer minimum design life; not a warranty; preserve the printed greater-than-or-equal qualifier. Family web tables may present unqualified values or a shared range; these are not equivalent claims.

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Design life

≥15000 h

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Manufacturer minimum design life; not a warranty; preserve the printed greater-than-or-equal qualifier. Family web tables may present unqualified values or a shared range; these are not equivalent claims.

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Mass

14.5 kg

Reported claim

Configuration: FHG; U-III; frame size 50; U-III assembly; exact drawing mass cell: FHG-III:14.5

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000 FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000 120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Maximum allowable input speed

3,500 r/min

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Maximum input speed under grease lubrication

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Maximum allowable input speed

3,500 r/min

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Maximum input speed under grease lubrication

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Maximum allowable input speed

3,500 r/min

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Maximum input speed under grease lubrication

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Maximum permissible average load torque

866 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Average load limit

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Maximum permissible average load torque

1,057 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Average load limit

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Maximum permissible average load torque

675 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Average load limit

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Maximum permissible instantaneous torque

2,678 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Momentary maximum; not continuous rated torque

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Maximum permissible instantaneous torque

2,678 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Momentary maximum; not continuous rated torque

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Maximum permissible instantaneous torque

2,418 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Momentary maximum; not continuous rated torque

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Rated output torque

611 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; At 2000 r/min input

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Rated output torque

688 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; At 2000 r/min input

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Rated output torque

484 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; At 2000 r/min input

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Reduction ratio

100

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; Manufacturer-listed reduction ratio

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Reduction ratio

120

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; Manufacturer-listed reduction ratio

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Reduction ratio

80

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; Manufacturer-listed reduction ratio

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

Start/stop permissible peak torque

1,247 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 100:1; During starting and stopping

FHG-50-XX-U-III manufacturer dimensional drawing
FHG- 50-XX-U-III 50 100 611 62 1247 130 866 88 2678 273 3500 3500 ≤20 FHG-III:14.5 ≥15000

Start/stop permissible peak torque

1,404 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 120:1; During starting and stopping

FHG-50-XX-U-III manufacturer dimensional drawing
120 688 70 1404 143 1057 108 2678 273 3500 3500 ≤20 ≥15000

Start/stop permissible peak torque

1,223 N·m

Reported claim

Configuration: FHG; U-III; frame size 50; reduction ratio 80:1; During starting and stopping

FHG-50-XX-U-III manufacturer dimensional drawing
80 484 49 1223 125 675 69 2418 247 3500 3500 ≤20 ≥15000

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