{"product_id":"40-hp-rotary-cutter-gearbox-with-1-3-8-inch-smooth","title":"40 HP Rotary Cutter Gearbox With 1 3 8 Inch Smooth Input Shaft And 1 To 1.93 Ratio, 540 And 1000 Max RPM, CCW To CW, Cast Iron Housing, Replaces OEM Gearboxes On 4ft And 5ft Rotary Cutters From Howse King Kutter Mohawk Modern Sunshine Sidewinder GM","description":"\u003cdiv\u003e40 HP Rotary Cutter Gearbox for 4-5 ft Cutters, 1-3\/8 input\u003cbr\u003e\n✔️ 40 HP unit, single pack, 1-3\/8 in input, 1:1.93 ratio, 540\/1000 RPM, CCW to CW \u003cp\u003eThis 40 HP rotary cutter gearbox is a direct replacement drive unit for 4 ft and 5 ft rotary cutters from multiple brands. It uses a four-bolt mounting pattern (4-3\/4\" square) with 5\/8\" bolt holes and a piloted flange bottom to fit a 5-1\/4\" pilot hole on the mower deck. It ships without oil (16 oz of 80-90 W).\u003c\/p\u003e ✅ 40 HP input power\u003cbr\u003e\n✅ Input shaft: 1-3\/8\" Smooth\u003cbr\u003e\n✅ Output shaft: 1-9\/16\" tapered 12-spline\u003cbr\u003e\n✅ Gear ratio: 1:1.93\u003cbr\u003e\n✅ Input speeds: 540\/1000 RPM\u003cbr\u003e\n✅ Rotation: CCW to CW\u003cbr\u003e\n✅ Cast iron housing, sealed\u003cbr\u003e\n✅ Mounting: four-bolt pattern 4-3\/4\" square with 5\/8\" holes\u003cbr\u003e\n✅ Pilot hole size: 5-1\/4\"\u003cbr\u003e\n✅ Ships without oil; includes 16 oz of 80-90 W\u003cbr\u003e\n✅ Piloted flange bottom fits 5-1\/4\" pilot hole\u003cbr\u003e \u003cp\u003e💡 What is a rotary cutter gearbox used for in farming equipment?\u003c\/p\u003e\n\u003cp\u003eIn short, it's the power transfer unit that drives the mower blade from the tractor, balancing speed and torque. Handy details:\u003c\/p\u003e\n- Transfers PTO power to the cutter at the correct speed and torque\n- Provides gear reduction and protects gears and bearings\n- Fits standard four-bolt mounting patterns and pilot hole sizes\n- Supports CCW to CW rotation ✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49150351114475,"sku":"VXB0DKRSWTK6","price":332.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/vxb.com\/products\/40-hp-rotary-cutter-gearbox-with-1-3-8-inch-smooth","provider":"VXB Bearings","version":"1.0","type":"link"}