Mower Gearboxes for Australian Agriculture

Our ISO-Certified Production Facility

⚙ Precision Engineering

CNC-machined spiral bevel gears from 20CrMnTi alloy steel, carburised to HRC 58-62 — delivering 96-98% transmission efficiency and 10+ million cycle fatigue life under rated torque.

🔒 Sealed for Australian Conditions

Multi-lip NBR/FKM oil seals rated to IP65 keep dust, moisture, and crop debris out — from the red dust of outback Queensland to the wet pastures of Tasmania and Gippsland.

🚚 Direct-to-Australia Supply

Warehousing in Sydney with nationwide freight to every state and territory. Standard models dispatch in 3-5 business days; custom configurations in 4-6 weeks.

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20CrMnTi Hardened Gears

Forged alloy steel gears carburised to HRC 58-62 with 1.2 mm case depth. Spiral bevel tooth profiles reduce noise and deliver 96-98% transmission efficiency — outperforming cast or straight-bevel alternatives.

Heavy-Duty Cast Iron Housing

HT250 grey iron or QT450-10 ductile iron casings with 12-18 mm wall thickness absorb vibration and survive rock strikes. Integrated cooling fins keep oil below 80 degrees C during sustained summer mowing.

IP65 Multi-Lip Sealing

Double and triple-lip FKM/NBR shaft seals with labyrinth pre-seals keep out dust, water, and debris. Viton seals on high-power models handle -25 to +200 degrees C for all-season Australian operation.

Direct OEM Replacement

Industry-standard mounting patterns, shaft splines (1 3/8" Z6, 1 3/4" Z20), and bolt circles. Drop-in replacement for gearboxes on equipment from John Deere, Kubota, Massey Ferguson, and more.

12-Month Warranty + Spares

Every gearbox ships with a 12-month warranty. Full spare parts inventory — gears, bearings, seals, shafts — in stock for every model, dispatching within 24 hours for rapid field repair.

30-50% Below OEM Pricing

Factory-direct pricing eliminates middleman margins. Equivalent or superior materials and manufacturing processes compared to OEM originals — verified by independent metallurgical testing.

Pasture & Paddock Mowing

Dairy, beef, and sheep farmers rely on our 30-60 HP gearboxes to keep improved pastures topped and productive throughout the growing season.

Land Clearing & Brush Cutting

Industrial-grade 80-150 HP gearboxes power rotary cutters through dense regrowth, saplings, and scrub on rural properties, mining sites, and government corridors.

Hay & Silage Disc Mowing

Our EP-MDH disc mower hub gearboxes deliver consistent disc speed and vibration-free cutting across the full bar width for precision haymaking.

★★★★★

"Installed the EP-RC31 on my 5-foot slasher last season. Over 400 hours and counting — zero leaks, minimal noise. Best aftermarket gearbox I've used in 20 years of farming."

★★★★★

"We replaced three OEM gearboxes across our fleet with Ever-power units. Gear quality and seal performance are noticeably superior. Consistent quality between all units."

★★★★★

"Running the EP-RC81 on our cattle station in outback WA. Dust, heat, rocks — this gearbox handles it all. The seals are particularly impressive in harsh conditions."

About Us

Two Decades of Agricultural Gearbox Excellence

Ever-power Australia Mower Gearbox is a specialist manufacturer of right-angle bevel gearboxes, disc mower hub drives, and rotary tiller transmissions for the global agricultural industry. Founded over 20 years ago, we have grown from a small workshop into a vertically integrated production facility covering forging, CNC gear cutting, heat treatment, precision grinding, assembly, and testing — all under one roof.

Our ISO 9001:2015 certified factory spans over 15,000 m² and houses 28 CNC machining centres, 12 dedicated gear production lines, and a climate-controlled metrology lab equipped with Zeiss CMMs and Gleason gear analyzers. We produce more than 50,000 gearbox units annually, serving OEM implement manufacturers, agricultural equipment dealers, and end-user farmers across Australia, New Zealand, North America, Europe, South America, and Southeast Asia — over 40 countries in total.

What truly sets us apart is our commitment to the Australian agricultural market. We understand the unique demands of Australian farming — from the red dust and extreme heat of outback Queensland to the wet, heavy soils of Gippsland and the steep terrain of New Zealand's hill country. Every gearbox we manufacture is engineered with these conditions in mind: oversized seals, corrosion-resistant coatings, and generous oil capacities that keep your equipment running reliably from dawn to dusk, season after season.

PTO Drive Shafts

Standard and wide-angle PTO shafts with safety guards for every HP class.

Agricultural Gearboxes

Our full range of agricultural gearboxes for feeders, spreaders, and tillage.

Spare Parts & Gear Sets

Replacement gears, bearings, seals, and rebuild kits for all our gearbox models.

Get In Touch

Request Your Free Mower Gearbox Quote

Whether you need a single replacement gearbox or a full container for your OEM production line, our team is ready to help. Tell us your requirements and we will respond with a detailed quotation within 24 hours.

Send Your Enquiry

Determine your tractor's PTO horsepower from the owner's manual. Select a gearbox rated at or above that figure. For severe-duty work (mulching, scrub clearing), add a 25-30% safety margin. Example: a 50 HP PTO tractor doing brush cutting should use a 65+ HP rated gearbox.

Lower ratios (1:1) give higher blade speed for fine finish mowing. Higher ratios (1:1.93 or above) trade speed for torque — ideal for thick brush and heavy vegetation. Calculate your target blade tip speed (typically 4,500-5,500 m/min for rotary cutters) to determine the optimal ratio.

Measure your existing gearbox mounting bolt pattern, input spline (1 3/8" Z6 or 1 3/4" Z20), and output shaft type (spline, taper, keyway, or flange). Our technical team provides free cross-referencing to match your exact requirements.