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Specifications

Attribute	Value
Series	GN series, parallel shaft gearhead.
Model	4GN75KA.
Gear ratio	75 : 1.
Output shaft diameter	3/8 in (≈ 9.5 mm).
Frame / flange size	80 mm (3.15 in) square flange (GN 3.15 in frame).
Included hardware	Mounting screws; parallel key.
Permissible radial load	See manufacturer table (value depends on shaft‑end distance); consult GN series permissible load table.
Permissible axial load	See manufacturer table (value depends on shaft‑end distance); consult GN series permissible load table.
Compliance	RoHS compliant.
Typical weight	~1.5 kg (approx 1.504 kg listed by distributors).

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Features and application notes

• Parallel shaft design provides a compact footprint and short axial length for mounting to small motors.
• 75:1 reduction is suitable for applications needing high torque and low output speed; verify motor torque × ratio does not exceed the gearhead’s permissible torque (see GN/GB gear operating manual).
• Output shaft is keyed; confirm key size and shaft length for your coupling.

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