{"product_id":"cd-20-harmonic-gear-reducer-120-1-70mm","title":"CD-20 Φ70mm Harmonic Drive Gear Ratio 120:1 - Strain Wave Gear Reducer","description":"\u003ch1\u003eCD-20 Harmonic Gear Reducer 120:1\u003c\/h1\u003e\n✔️ Compact Harmonic Gear for Accurate Motion Control \u003cp\u003eThe CD-20 120:1 strain wave gear reducer is used in systems that require maximum torque output with precise low-speed control. It is suitable for robotics and automation setups with tight space limits.\u003c\/p\u003e \u003cp\u003e\n✅ Gear ratio: 120:1\u003cbr\u003e\n✅ Outer diameter: Φ70mm\u003cbr\u003e\n✅ Rated torque at 2000 rpm: 28 Nm\u003cbr\u003e\n✅ Limit for repeated peak torque: 61 Nm\u003cbr\u003e\n✅ Limit for average torque: 34 Nm\u003cbr\u003e\n✅ Limit for momentary peak torque: 95 Nm\u003cbr\u003e\n✅ Maximum input speed: 6500 rpm\u003cbr\u003e\n✅ Limit for average input speed: 3500 rpm\u003cbr\u003e\n✅ Moment of inertia: 0.09 x10^-4 kgm2\u003cbr\u003e\n✅ Backlash: ≤10 arcsec\n\u003c\/p\u003e \u003cp\u003e💡 What applications benefit most from a 120:1 harmonic gear reducer?\u003cbr\u003e\nVery high ratios are used when torque density and fine control are critical.\u003c\/p\u003e \u003cp\u003e\n- Maximizes torque output\u003cbr\u003e\n- Improves low-speed precision\u003cbr\u003e\n- Maintains smooth motion under load\n\u003c\/p\u003e \u003cp\u003eThis 120:1 CD-20 reducer is a strong choice for compact high-torque motion systems.\u003c\/p\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":47193908347115,"sku":"VXB-CD-20-120","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/sito-drive-harmonic-gear-reducer-compact-motion-control-precision-gearbox.png?v=1770447409","url":"https:\/\/vxb.com\/products\/cd-20-harmonic-gear-reducer-120-1-70mm","provider":"VXB Bearings","version":"1.0","type":"link"}