DJI Agras T30 OEM Large Gear (Open Spoke)

The DJI Agras T30 OEM Large Gear (Open Spoke) is the black, open-spoke large gear fitted in the spreading system of the DJI Agras T30 and T10. As shown in the product images, it is a flat round gear with fine teeth all the way around its rim, three wide spokes running from a round centre hub out to the rim, and three open windows between those spokes that you can see straight through. 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 open-spoke one, and the open windows are what identify it; the other has a mostly solid face. 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 system gear with broken 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, open-spoke large gear
• Matched by the three open windows between three wide spokes, the fine rim teeth, the centre hub and the rim tab against the gear you removed
• Genuine DJI OEM spreading-system component, brand new, supplied as one gear

The variant is one open-spoke large gear. It is not the closed-face large gear, not a gearbox and not a spreading disc. If you want the match confirmed, photograph the gear you removed face on, so the spokes and windows 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 (Open Spoke), black, with fine rim teeth, three wide spokes, three open windows and a round centre hub, as shown in the product images

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

What is part of the gear: the toothed rim, the three spokes, the centre hub and the rim tab, all as one part.

Not included: the closed-face 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 open-spoke gear.

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

• The open windows — three open windows between the spokes, which you can see straight through
• The three wide spokes — broad, flat spokes running from the hub out to the rim
• The fine rim teeth — small teeth all the way around the outside edge of the rim
• The centre hub — a round hub with a round bore at the middle
• The rim tab — a small tab standing out from one point on the rim

The closed-face large gear is the other part sold under the same name. Its face is mostly solid, with a raised centre ring and hub and only three small windows near the rim. Put the two side by side and they are easy to tell apart; order by the name alone and it is a coin toss.

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. A spoke cracks from a knock. Or the hub cracks or wears so the gear no longer sits true on its shaft.

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.

The gear has no wiring and no setting. It is the correct gear or it is not.

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⚙️ Functional Purpose

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

In the spreading system it:

• Carries fine teeth around its whole rim to mesh with a mating part
• Turns about its centre hub
• Ties rim and hub together through three wide spokes
• Leaves three open windows between the spokes
• 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 closed-face large gear

A gear with a single broken tooth still turns. It does not run smoothly: each time the gap comes round, the mesh slips or knocks. That is why a tooth fault often shows as a regular tick or knock in the spreader, once per turn of the gear.

Tooth count, module, material, dimensions and weight are not published for this part. The match is made by spokes, windows, teeth and hub.

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

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🔍 Diagnosis — two gears share the name, so the open windows decide which one you hold

Large gear is the name of two different parts in the T30 and T10 spreading system. One is open-spoke: three wide spokes with open windows you can see through. The other is closed-face: a mostly solid face with a raised centre ring and three small windows near the rim. Ordering by the name alone is the usual mistake, and it costs a repair cycle.

The way to avoid it is to read the gear by its face. Hold the gear you removed up to the light. If you can see straight through three large windows between three wide spokes, it is this one. If the face is mostly solid, it is the closed-face gear.

Symptoms that point at this gear:

• A regular tick or knock from the spreader, once per turn
• Chipped, broken or missing teeth on the rim
• Teeth worn to points or rounded off
• A cracked spoke or a crack at the hub
• 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 and look at every tooth as it passes. Look at each spoke where it meets the rim and the hub. Check the hub bore for wear. Compare it face on with the gear you are ordering: open windows, three wide spokes.

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
• Teeth worn so they no longer mesh cleanly
• A cracked spoke or rim
• A cracked or worn hub 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 with one chipped tooth still turns and still drives. It is not proved sound because the spreader still runs; the chipped tooth is where the mesh slips, and it damages the mating gear each turn.

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

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📐 Specifications

Product name: DJI Agras T30 OEM Large Gear (Open Spoke)

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, open-spoke 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: Flat round gear: fine teeth around the rim, three wide spokes, three open windows, round centre hub, small rim tab

Identifier: Open windows between the spokes — not the closed-face version

Tooth count: Not published for this part

Gear module: Not published for this part

Material: Not published for this part

Colour: Black

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 the rim 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
• Hold the old gear to the light and confirm it has open windows between three wide spokes
• 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 and note which face was up
• 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 gear teeth. When it is clean, turn the gear by hand and look at the teeth as they pass. A chipped tooth caught early saves the mating gear.

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🚜 Necessary For

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

• DJI Agras T30 operators running granular spreading with a knocking or ticking spreader
• DJI Agras T10 operators whose open-spoke large gear has broken 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 a mostly solid face with only three small windows — that is the DJI Agras T30 OEM Large Gear (Closed Face)
• 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 spreader knocks only when packed with product — clean it and test again
• 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

Two different parts are sold under the name large gear for the T30 and T10 spreading system. The name does not separate them. The face does: this one has three wide spokes with open windows between them that you can see straight through, and the other has a mostly solid face with a raised centre ring.

The way through is to hold the old gear up to the light. Three large open windows means this gear. A solid face means the closed-face gear. That single look settles the order.

That is the case for checking the face first, while that information is still cheap. It takes seconds, it needs no tools, and it is the only reliable way to separate two parts that share one name.

It is also the case for looking at the mating gear while the spreader is open. A gear with broken teeth has usually been knocking against its partner every turn, and the partner may need replacing too.

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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 (Open Spoke)

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, open-spoke version

Aircraft system: Spreading system

Primary function: Transmits rotation through its rim teeth within the spreading system

Form: Black round gear; fine rim teeth, three wide spokes, three open windows, round centre hub

Identifier: Open windows between three wide spokes

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

Quantity supplied: 1 gear

Not included: Closed-face large gear, mating gear, shafts, bearings, screws, clips, gearbox module

Key diagnostic: Two parts share the name large gear; open windows identify this one, a solid face the other

Common failure modes: Chipped or broken teeth, worn teeth, cracked spoke, worn or cracked 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 open

Disambiguation: Not the DJI Agras T30 OEM Large Gear (Closed Face); 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 (open spoke)? A black round gear from the T30 and T10 spreading system, with fine teeth around its rim, three wide spokes, three open windows between them and a round centre hub.

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

How do I tell which large gear I have? Hold it up to the light. If you can see straight through three large windows between three wide spokes, it is this one. A mostly solid face with a raised centre ring is the closed-face gear.

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.

My spreader ticks once every turn. Is it this gear? It can be. A chipped or broken tooth knocks each time it comes round. Turn the gear by hand and check every tooth, and check the mating gear too.

Which part does the gear drive? That is not published for this part. The gear is matched by its spokes, windows, teeth and hub 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.

One tooth is chipped but it still works. Can I leave it? A chipped tooth slips or knocks each turn and wears the mating gear. Replace the gear.

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 breaks it? Hard pellets or stones caught in the mesh, grit wearing the teeth, and knocks to the spreader.

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, spokes or hub are damaged or worn.

Should I replace the mating gear too? Check it. A gear with broken teeth has often been knocking against its partner; replace the partner if its teeth are chipped or worn.

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