Oriental Motor 4GN75SA — Technical specifications

Attribute	Value
Series / Type	GN‑S series, parallel‑shaft gearhead
Gear ratio	75 : 1
Output shaft diameter	3/8 in (≈9.5 mm)
Frame / mounting size	80 mm (3.15 in)
Maximum permissible torque	8.0 N·m
Permissible radial load	100 N (typical, see datasheet for shaft‑end distances)
Permissible axial load	150 N (typical, see datasheet for shaft‑end distances)
Included hardware	Mounting screws; parallel key
Compliance / notes	RoHS compliant; CA Prop 65 warning on nickel content
Approximate weight	~1.5 lb

Specs compiled from Oriental Motor product pages and distributor listings.

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Key features

• High reduction ratio: 75:1 for high torque, low‑speed applications.
• Compact parallel‑shaft design: intended to mount directly to small motors to increase output torque while keeping a short axial length.

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Mechanical ratings and limits

• Rated torque: 8.0 N·m (maximum permissible torque for the 4GN family).
• Radial and axial loads: use the published permissible radial/axial load tables for the GN‑S series; values depend on shaft‑end distance (typical values shown in the product table above).

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Mounting, compatibility, and accessories

• Mounting: supplied with mounting screws and a parallel key; designed to mate with Oriental Motor small motors and similar‑sized frames.