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Shear Bolt Gearbox 35-45HP by Rancher Supply - Rotary Replacement Kit for Omni Gear RC30 with 5 Extra Shear Bolts, Lubricant Not Included

4.6 out of 5 stars 197 ratings
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Purchase options and add-ons

  • Durable Protection: Fits most light duty rotary cutter machines that require shear pin protection and includes 5 replacement shear bolts to add to your rotary kit.
  • Fits Models: RD5, RD6, RZ160, RZ60 – Gearbox Assembly P/N 00786192. Razorback Series BH4, BH5, BH6, BH4-2, BH5-2, BH6-2. BMB 1080, BMB 10300, Hardee C1378, Mohawek 14-500, Rhino 0711050100, Rhino 71105, Omni 250123, Omni 250001, SE Big Ox 1970, Sidewinder 26272, and Others
  • Industry standard 1-3/8" smooth diameter input shaft with 1/2" shear bolt hole and retaining ring groove and 1.57" diameter 12 tapered spline output shaft allow fitment to most light, standard and medium duty rotary cutters.
  • 1:1.47 Ratio for use on 5' and larger diameter rotary cutters
  • Each gearbox features high speed ball bearing units and heat treated gears and shafts to ensure long life. Four bolt mounting matches industry standards. Each gearbox includes blade carrier mounting nut and cotter pin. Gearboxes are shipped dry and require 16 ounces of 90W or 85w140 gearlube or equivalent.
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Product details

  • Parcel Dimensions ‏ : ‎ 33.02 x 31.75 x 31.75 cm; 20.48 kg
  • Date First Available ‏ : ‎ May 19 2020
  • Manufacturer ‏ : ‎ Rancher Supply
  • ASIN ‏ : ‎ B082WKLHHT
  • Item model number ‏ : ‎ 401-0007AB
  • Customer Reviews:
    4.6 out of 5 stars 197 ratings

Frequently bought together

Shear Bolt Gearbox 35-45HP by Rancher Supply - Rotary Replacement Kit for Omni Gear RC30 with 5 Extra Shear Bolts, Lubricant
This item: Shear Bolt Gearbox 35-45HP by Rancher Supply - Rotary Replacement Kit for Omni Gear RC30 with 5 Extra Shear Bolts, Lubricant Not Included
$314.12
FREE Delivery
In Stock
Sold by Rancher Supply and ships from 鶹 Fulfillment.
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Replacement Bush Hog Rotary Cutter Blades – Part Number 7555, 24’’x3/4’’ Rancher Supply Blades and Compatible Rotary Replacem
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Replacement Bush Hog Rotary Cutter Blade Bolt Kit Code 63607, 2 Bolts with Nuts and Lock Washers
$98.95
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Product description

In today’s world, every farmer or rancher needs the right tool to get the job done – and most importantly, they need a toolkit that contains high-quality parts and ranch tools specifically built to last. Here at Rancher Supply, we offer a wide range of farm equipment and parts that the everyday farmer can use to accomplish a wide range of jobs, projects, and tasks while out on their ranch. We’re excited to show you our brand new gearbox that comes to you courtesy of Rancher Supply – the home for ranch tools and farming equipment. 40 Horse Power Makes All The Difference Our powerful new gearbox is the perfect shear bolt replacement for a wide range of Borg Warner, Auburn, Omni, and Patico light duty rotary cutter machines. Loaded with up to 40HP, this gearbox is specifically designed to give you flexibility, efficiency, and accuracy with every cut. Featuring a versatile 1:1.47 speed up gear ratio, you can use this gearbox on rotary cutters that contain a diameter of more than 5 feet and maintain the very same level of accuracy with every cut! Featuring a blade carrier mounting nut, along with a strong cotter pin to keep your blade in place, this particular gearbox is durable and strong – always giving you more with every cut. In addition, you’ll find speed ball bearing units and gears and shafts treated with high temperatures to ensure the longevity of your replacement product for years of use. The Perfect Replacement When it’s time to replace an old or broken rotary cutter gearbox, the Rancher Supply 40HP Shear Bolt Gearbox should be your first choice. Think about it, why build a new system when you can simply replace your gearbox at an affordable price that doesn’t set you back? And don’t forget – this product includes 5 replacement shear bolts, offering you tremendous value with your purchase. This replacement gearbox is compatible with a wide range of rotary cutter machines.

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4.6 out of 5 stars
197 global ratings

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Top reviews from other countries

  • Ashley Gildehaus
    5.0 out of 5 stars Exactly what I needed
    Reviewed in the United States on May 27, 2025
    Verified Purchase
    Perfect fit. Easy install the gear ratio is perfect for my compact tractor. Easiest way to repair a gear box is with this replacement
    Report
  • Tomison
    5.0 out of 5 stars Exact replacement
    Reviewed in the United States on January 13, 2025
    Verified Purchase
    Seems like a heavy duty unit. Looks like an exact replacement for the bush hog razorback.
    Easy install.
    Report
  • jack manuel
    5.0 out of 5 stars Great product
    Reviewed in the United States on November 3, 2024
    Verified Purchase
    I’m a contractor. I use my bush hog a lot on my properties. This gear box is amazing for the price.
    Report
  • MB Colley
    4.0 out of 5 stars Good fit, seems like a perfect replacement
    Reviewed in the United States on June 27, 2024
    Verified Purchase
    Well packaged and everything was included as described except for the cotter pin. Had to go hunt one down. After installation, it was noted that the breather plug was also left out. That was a problem as it was very difficult to make a replacement work.
    Report
  • Ron D
    5.0 out of 5 stars Perfect fit, decent price and so far so good.
    Reviewed in the United States on September 23, 2024
    Verified Purchase
    Price and fit good. Runs great so far but only a couple if hours of use on it.
    Report