[GGM] — K8G□C Gear Head for 25W Motor (□80mm, Ball Bearing + Metal Bearing, 1/3–1/250, incl. Decimal (K8G10BX))
AC Geared Motors GGM

[GGM] — K8G□C Gear Head for 25W Motor (□80mm, Ball Bearing + Metal Bearing, 1/3–1/250, incl. Decimal (K8G10BX))

Family ID: GGM-K8G-C

GGM gear head converts motor speed/torque by gear ratio. Helical-gear precision machining lowers noise approx. 10 dB vs conventional. Ball Bearing + Metal Bearing (C) type, ratios 1/3–1/250 (25 steps); dedicated to □80mm 25W pinion-shaft motor (K8□G), matching face/teeth only. Includes decimal gear head K8G10BX (1/10 intermediate reducer; permissible torque 8N·m/80kgf·cm, or 6N·m/60kgf·cm with 1/25–1/40 gear heads).

26 product codes available in this family

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Product Codes & Specifications

Product Code Description Brand Spec
K8G3C GGM gear head K8G3C — ratio 1/3, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/3 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 0.45N·m(4.5kgf·cm)@50Hz / 0.38N·m(3.8kgf·cm)@60Hz | Output Speed: 500rpm@50Hz / 600rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G3.6C GGM gear head K8G3.6C — ratio 1/3.6, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/3.6 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 0.54N·m(5.4kgf·cm)@50Hz / 0.45N·m(4.5kgf·cm)@60Hz | Output Speed: 416rpm@50Hz / 500rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G5C GGM gear head K8G5C — ratio 1/5, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/5 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 0.75N·m(7.5kgf·cm)@50Hz / 0.63N·m(6.3kgf·cm)@60Hz | Output Speed: 300rpm@50Hz / 360rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G6C GGM gear head K8G6C — ratio 1/6, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/6 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 0.9N·m(9kgf·cm)@50Hz / 0.75N·m(7.5kgf·cm)@60Hz | Output Speed: 250rpm@50Hz / 300rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G7.5C GGM gear head K8G7.5C — ratio 1/7.5, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/7.5 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 1.12N·m(11.2kgf·cm)@50Hz / 0.94N·m(9.4kgf·cm)@60Hz | Output Speed: 200rpm@50Hz / 240rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G9C GGM gear head K8G9C — ratio 1/9, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/9 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 1.35N·m(13.5kgf·cm)@50Hz / 1.13N·m(11.3kgf·cm)@60Hz | Output Speed: 166rpm@50Hz / 200rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G10C GGM gear head K8G10C — ratio 1/10, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/10 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 1.5N·m(15kgf·cm)@50Hz / 1.26N·m(12.6kgf·cm)@60Hz | Output Speed: 150rpm@50Hz / 180rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G12.5C GGM gear head K8G12.5C — ratio 1/12.5, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/12.5 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 1.87N·m(18.7kgf·cm)@50Hz / 1.57N·m(15.7kgf·cm)@60Hz | Output Speed: 120rpm@50Hz / 144rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G15C GGM gear head K8G15C — ratio 1/15, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/15 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 2.25N·m(22.5kgf·cm)@50Hz / 1.88N·m(18.8kgf·cm)@60Hz | Output Speed: 100rpm@50Hz / 120rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G18C GGM gear head K8G18C — ratio 1/18, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/18 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 2.7N·m(27kgf·cm)@50Hz / 2.26N·m(22.6kgf·cm)@60Hz | Output Speed: 83rpm@50Hz / 100rpm@60Hz | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 50 | Weight: 0.51kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G20C GGM gear head K8G20C — ratio 1/20, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/20 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 2.7N·m(27kgf·cm)@50Hz / 2.26N·m(22.6kgf·cm)@60Hz | Output Speed: 75rpm@50Hz / 90rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.64kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G25C GGM gear head K8G25C — ratio 1/25, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/25 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 3.37N·m(33.7kgf·cm)@50Hz / 2.82N·m(28.2kgf·cm)@60Hz | Output Speed: 60rpm@50Hz / 72rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.64kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G30C GGM gear head K8G30C — ratio 1/30, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/30 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 4.05N·m(40.5kgf·cm)@50Hz / 3.39N·m(33.9kgf·cm)@60Hz | Output Speed: 50rpm@50Hz / 60rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.64kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G36C GGM gear head K8G36C — ratio 1/36, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/36 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 4.86N·m(48.6kgf·cm)@50Hz / 4.07N·m(40.7kgf·cm)@60Hz | Output Speed: 41rpm@50Hz / 50rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.64kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G40C GGM gear head K8G40C — ratio 1/40, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/40 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 5.39N·m(53.9kgf·cm)@50Hz / 4.52N·m(45.2kgf·cm)@60Hz | Output Speed: 37rpm@50Hz / 45rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.64kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G50C GGM gear head K8G50C — ratio 1/50, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/50 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 6.07N·m(60.7kgf·cm)@50Hz / 5.08N·m(50.8kgf·cm)@60Hz | Output Speed: 30rpm@50Hz / 36rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G60C GGM gear head K8G60C — ratio 1/60, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/60 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 7.28N·m(72.8kgf·cm)@50Hz / 6.1N·m(61kgf·cm)@60Hz | Output Speed: 25rpm@50Hz / 30rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G75C GGM gear head K8G75C — ratio 1/75, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/75 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 7.63N·m(76.3kgf·cm)@60Hz | Output Speed: 20rpm@50Hz / 24rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G90C GGM gear head K8G90C — ratio 1/90, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/90 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 16rpm@50Hz / 20rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G100C GGM gear head K8G100C — ratio 1/100, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/100 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 15rpm@50Hz / 18rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G120C GGM gear head K8G120C — ratio 1/120, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/120 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 12.5rpm@50Hz / 15rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G150C GGM gear head K8G150C — ratio 1/150, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/150 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 10rpm@50Hz / 12rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G180C GGM gear head K8G180C — ratio 1/180, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/180 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 8.3rpm@50Hz / 10rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G200C GGM gear head K8G200C — ratio 1/200, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/200 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 7.5rpm@50Hz / 9rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G250C GGM gear head K8G250C — ratio 1/250, Ball Bearing + Metal Bearing, for 25W motor GGM Ratio: 1/250 | Bearing: Ball Bearing + Metal Bearing (C) | Output Torque: 8N·m(80kgf·cm)@50Hz / 8N·m(80kgf·cm)@60Hz | Output Speed: 6rpm@50Hz / 7.2rpm@60Hz | Gearhead Length L: 42.5mm | Mounting Bolt: M5 P0.8 X 65 | Weight: 0.70kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft) | Type: Helical, low-noise
K8G10BX GGM decimal gear head K8G10BX — 1/10 intermediate reducer for 25W motor GGM Type: Decimal (intermediate) gear head 1/10 | Function: Inserted between motor and gear head; reduces speed to 1/10 | Permissible Torque: 8N·m (80kgf·cm); 6N·m (60kgf·cm) with 1/25–1/40 gear head | Use: For total ratios beyond 1/250 | Gearhead Length L: 32mm | Mounting Bolt: M5 P0.8 X 95 | Weight: 0.46kg | Frame: □80mm | Applicable Motor: K8□G (25W, pinion shaft)

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