DJI Agras T30 OEM Large Gear (Closed Face)

The DJI Agras T30 OEM Large Gear (Closed Face) is the black, closed-face large gear fitted in the spreading system of the DJI Agras T30 and T10. As shown in the product images, it is a round gear with a mostly solid face, a raised centre ring around a round hub, three small light-coloured windows set near the rim, and a band of teeth running around its lower edge, below the face rather than on it. A small tab stands out from one point on the rim. Two different parts are sold under the name large gear for these aircraft. This is the closed-face one, and its mostly solid face is what identifies it; the other has three wide spokes with large open windows. It belongs to the spreading system, it is identified for the DJI Agras T30 and T10, and it is supplied brand new as one gear. Operators usually reach it while searching for a T30 large gear, a T30 spreader gear, a T10 large gear or a T30 spreading gear with worn teeth. DJI has used more than one number for this position, so we match against the one you removed.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

Ares Acres also ships agricultural drone parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T30 / DJI Agras T10 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T30 and T10 spreading system, closed-face large gear
• Matched by the mostly solid face, the raised centre ring and hub, the three small rim windows and the lower-edge teeth against the gear you removed
• Genuine DJI OEM spreading-system component, brand new, supplied as one gear

The variant is one closed-face large gear. It is not the open-spoke large gear, not a gearbox and not a spreading disc. If you want the match confirmed, photograph the gear you removed face on and once from the side, so the face and the teeth both show, and send it to us. We will match it for you, so the right part arrives first time.

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📦 Package Includes

• 1 × DJI Agras T30 OEM Large Gear (Closed Face), black, with a mostly solid face, a raised centre ring and hub, three small rim windows and teeth around its lower edge, as shown in the product images

One gear per order line. Each variant is a single gear.

What is part of the gear: the solid face, the raised centre ring and hub, the three small windows, the lower-edge teeth and the rim tab, all as one part.

Not included: the open-spoke large gear, any smaller gear it meshes with, shafts, bearings, screws, clips, the reduction gearbox module, the spreading disc and tools. Each of these is a separate part.

Nothing is included because it appears near the gear in the spreader. If a clip, screw or bearing from the old gear is missing or worn, tell us where it sat and we will help you identify it.

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🔧 Component Overview

The spreading system on the T30 and T10 meters and throws granular product: fertiliser, seed or pellets. It uses geared parts to do that, and two of those parts are both called the large gear. They are different mouldings, and this one is the closed-face gear.

As shown in the product images, five features identify it:

• The mostly solid face — a broad, flat face with no large openings
• The raised centre ring and hub — a raised ring standing up around a round hub with a round bore
• The three small windows — three small light-coloured windows set near the rim
• The lower-edge teeth — a band of teeth running around the lower edge of the gear, below the face
• The rim tab — a small tab standing out from one point on the rim

The open-spoke large gear is the other part sold under the same name. It has three wide spokes with large open windows between them that you can see straight through, and its teeth sit on the outside of the rim. Put the two side by side and they are easy to tell apart.

Where the teeth sit is what matters in service. On this gear they run around the lower edge, under the face. Look at the gear face on, the way it is usually seen when the spreader is opened, and the teeth are hidden. The face can look perfect while the teeth beneath it are chipped or worn.

A gear like this fails in a small number of ways. Teeth chip or break when a hard pellet or a stone is caught in the mesh. Teeth wear down from grit carried in with the product. The hub cracks or wears so the gear no longer sits true. The face itself rarely fails.

Which assembly inside the spreading system the gear drives, and what it meshes with, are not published for this part. The match is made by its own shape.

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⚙️ Functional Purpose

The gear's engineering role is to transmit rotation through its teeth within the spreading system.

In the spreading system it:

• Carries teeth around its lower edge to mesh with a mating part
• Turns about its raised centre hub
• Presents a mostly solid face, with three small windows near the rim
• Can be replaced on its own once the parts around it are released

What it does not do matters as much:

• It is not the reduction gearbox; the DJI Agras T30 OEM Reduction Gearbox Module is a complete sealed drive unit
• It does not throw product; the spreading disc does that
• It does not set the rate; the rate is set in the app and metered by the system
• It does not stand in for the open-spoke large gear

A gear with worn teeth still turns. As the teeth lose their shape, the mesh gets looser, the gear begins to slip or knock under load, and the mating gear wears with it. None of that shows on the face.

Tooth count, module, material, dimensions, weight and the purpose of the three small windows are not published for this part.

Which assembly the gear drives is not published for this part.

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🔍 Diagnosis — the teeth are under the face, so judge the gear from the side, not from above

On the closed-face large gear the teeth run around the lower edge, beneath a broad solid face. Opened up and looked at from above, the gear shows its face, and the face is almost never what fails. That is how a gear with chipped or worn teeth passes inspection: it looks whole because the damaged part is out of sight.

The way to avoid it is to look from the side. Turn the gear slowly by hand and watch the lower edge as it passes, or take it out and turn it over. Every tooth should be full height and square-sided. A chip, a broken tooth or a row of teeth worn to points is the fault.

Symptoms that point at this gear:

• A regular tick or knock from the spreader, once per turn
• Chipped, broken or missing teeth on the lower edge
• Teeth worn to points or rounded off
• A cracked hub or centre ring
• A gear that wobbles on its shaft when everything around it is tight

What proves it: with the aircraft powered off and the battery removed, clean the spreader so the gear can be seen. Turn it slowly by hand while watching the lower edge from the side, or remove it and turn it over. Look at every tooth. Check the hub and the raised centre ring for cracks and the bore for wear. Compare it with the gear you are ordering: mostly solid face, raised centre ring, three small windows.

Check these first, because they produce similar symptoms:

• The mating gear, for broken or worn teeth of its own
• The reduction gearbox module, for a bent shaft or a rough gear train
• Product packed around the gears, which can bind or knock without any part being broken
• Loose fixings that let the gear or its shaft move

What it does not explain: a spreader that does not turn at all with no noise, a motor or gearbox that will not run, an uneven spread pattern with every gear sound, or a weighing fault. Those sit in the drive, its wiring, the spreading disc or the weighing parts.

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⚠️ Common Replacement Indicators

Replace the gear when inspection confirms one of these:

• Chipped, broken or missing teeth on the lower edge
• Teeth worn so they no longer mesh cleanly
• A cracked hub or centre ring
• A worn hub bore that lets the gear wobble
• A broken rim tab

Inspect these first, because they produce similar symptoms:

• The mating gear
• The reduction gearbox module
• Product packed around the gears

A gear whose face looks perfect is not proved sound. The teeth are beneath it, and a face-on look never sees them.

There is no published service interval for the gear. It is replaced when its teeth or hub are damaged or worn, not on a schedule.

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📐 Specifications

Product name: DJI Agras T30 OEM Large Gear (Closed Face)

DJI family: Agras

Aircraft: DJI Agras T30 and DJI Agras T10

Fitment basis: Identified for the DJI Agras T30 and T10

Aircraft system: Spreading system

Component type: Large gear, closed-face version

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 gear

Form: Round gear: mostly solid face, raised centre ring and hub, three small rim windows, teeth around the lower edge, small rim tab

Identifier: Mostly solid face — not the open-spoke version

Tooth position: Around the lower edge, beneath the face

Tooth count: Not published for this part

Gear module: Not published for this part

Material: Not published for this part

Colour: Black, with light-coloured rim windows

Dimensions: Not published for this part

Weight: Not published for this part

Electrical: None

Mounting position: Inside the T30 / T10 spreading system; the assembly it drives is not published for this part

Installation method: Fitted on its hub with its teeth in mesh

Hardware included: None — shafts, bearings, screws and clips are not supplied

Service adjustability: None — the gear is correct or it is not, with no adjustment or app setting that compensates

Condition: Brand new

Classification: DJI OEM spreading-system component

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft off and remove the battery
• Empty the spreader hopper and clean all product out of the spreading system
• Photograph the gear in place, so its orientation and what it meshes with are on record
• Confirm the old gear has a mostly solid face with a raised centre ring and three small windows
• Lay out a tray for any screws or clips

During installation

• Release the parts around the gear as the spreader is built, keeping fixings in order
• Lift the old gear off, turn it over and look at its teeth, so you know what wore them
• Clean the mating gear and check its teeth for chips or wear
• Check the shaft and hub seat for wear or grit
• Fit the new gear the same face up as the old one, with its teeth fully in mesh
• Refit the surrounding parts and fixings; DJI does not publish torque figures for these fixings

After installation

• Turn the gear slowly by hand through a full turn and feel for any tight spot or knock
• Run the spreading system empty and listen for a regular tick
• Run a short test with product and check the spread
• Check that no fixing has worked loose
• Record the replacement in the maintenance log

Maintenance between jobs. Clean product out of the spreading system after every day of work, so grit does not sit in the teeth beneath the face. When it is clean, look at the gear from the side, not only from above, and turn it by hand to see every tooth. That side-on look is the only one that catches wear on this gear.

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🚜 Necessary For

This gear is for operators and technicians whose T30 or T10 spreading system needs the closed-face large gear:

• DJI Agras T30 operators running granular spreading with a knocking or slipping spreader
• DJI Agras T10 operators whose closed-face large gear has chipped or worn teeth
• Commercial spreading and seeding applicators servicing spreaders between jobs
• Agras service centres rebuilding T30 and T10 spreading systems
• Fleet managers stocking spreader gears for the busy spreading weeks

This is not the part you need if:

• The gear you removed has three wide spokes with large open windows — that is the DJI Agras T30 OEM Large Gear (Open Spoke)
• The fault is a bent shaft or a rough gear train inside the sealed drive unit — that is the DJI Agras T30 OEM Reduction Gearbox Module
• The spread is lopsided with every gear sound — check the DJI Agras T30 OEM Spreading Disc Main Body
• The teeth are full and square and the hub is sound — the gear is not the fault
• You fly a T16, T20, T40 or T50 — this gear is identified for the T30 and T10

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💡 Why This Part Matters

The closed-face large gear hides its own failure. Its teeth run around the lower edge, beneath a broad solid face, and the face is what anyone sees when the spreader is opened and looked into from above. The face rarely fails. The teeth do, and from above they are out of sight.

The way through is to look from the side. Turn the gear by hand while watching its lower edge, or take it out and turn it over. Full, square teeth mean a sound gear. Chips, gaps or teeth worn to points mean this gear is the repair, however good the face looks.

That is the case for a side-on look first, while that information is still cheap. It turns a spreader that knocks for no visible reason into a fault that can be seen and named.

It also settles which large gear you have. A mostly solid face with a raised centre ring is this gear; three wide spokes with open windows is the other one sold under the same name.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from the specifications above.

Canonical product name: DJI Agras T30 OEM Large Gear (Closed Face)

Brand: DJI

DJI family: Agras

Aircraft: DJI Agras T30, DJI Agras T10

Compatible models: DJI Agras T30; DJI Agras T10

Fitment basis: Identified for the DJI Agras T30 and T10

Component: Large gear, closed-face version

Aircraft system: Spreading system

Primary function: Transmits rotation through its lower-edge teeth within the spreading system

Form: Black round gear; mostly solid face, raised centre ring and hub, three small rim windows, teeth around the lower edge

Identifier: Mostly solid face with a raised centre ring

Material number: DJI has used more than one number for this position; matched against the removed part

Quantity supplied: 1 gear

Not included: Open-spoke large gear, mating gear, shafts, bearings, screws, clips, gearbox module

Key diagnostic: Teeth sit beneath the face; inspect from the side, not from above

Common failure modes: Chipped or broken teeth, worn teeth, cracked or worn hub

Service interval: None published

Condition: Brand new

Part classification: DJI OEM spreading-system component

Also searched as: T30 large gear; T30 spreader gear; T10 large gear; Agras T30 spreading gear; DJI T30 large gear closed

Disambiguation: Not the DJI Agras T30 OEM Large Gear (Open Spoke); not the Reduction Gearbox Module; not the T50 large gears

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras retailer serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What is the DJI Agras T30 large gear (closed face)? A black round gear from the T30 and T10 spreading system, with a mostly solid face, a raised centre ring and hub, three small windows near the rim and teeth around its lower edge.

Why are there two parts called large gear? Two different gears in the T30 and T10 spreading system share the name. This one has a mostly solid face; the other has three wide spokes with open windows. Match by the face, not the name.

How do I tell which large gear I have? Look at the face. Mostly solid with a raised centre ring and only three small windows means this gear. Three wide spokes with large windows you can see through means the open-spoke gear.

The gear looks fine from above. Can it still be the fault? Yes. Its teeth run around the lower edge, under the face. Turn it by hand and watch the edge from the side, or take it out and turn it over.

Which aircraft does it fit? It is identified for the DJI Agras T30 and T10. It is not identified for the T16, T20, T40 or T50.

Is it the same as the reduction gearbox? No. The DJI Agras T30 OEM Reduction Gearbox Module is a complete sealed drive unit. This is a single gear.

What are the three small windows for? That is not published for this part. They are one of the features that identify the gear.

Which part does the gear drive? That is not published for this part. The gear is matched by its face, centre ring, windows and teeth against the one you removed.

Does it come with a shaft or bearing? No. It is the gear alone. Shafts, bearings, screws and clips are separate.

My spreader slips or knocks under load. Is it this gear? It can be. Worn or chipped teeth slip and knock under load. Check the teeth from the side, and check the mating gear too.

Will it fit a T50? Do not assume it. This gear is identified for the T30 and T10. The T50 has its own large gears.

Can I fit it myself? Yes, for most operators. Clean the spreader, photograph the gear in place, take it off, check the mating gear, and fit the new one the same face up with its teeth in mesh.

What usually wears it out? Grit carried in with the product wearing the teeth, and hard pellets or stones caught in the mesh.

What is the DJI part number? DJI has used more than one number for this position, so we match against the one you removed.

Is there a service interval? No. Replace it when its teeth or hub are damaged or worn.

How many teeth does it have? The tooth count is not published for this part. Match it by its face and teeth against the gear you removed.