84072022 Driven Sprocket for New Holland

84072022 Driven Sprocket for New Holland & Case IH Combine Feeder Chain — 12T / 50mm Bore

The 84072022 Driven Sprocket is a direct-fit replacement for New Holland and Case IH combine harvester feeder chain systems. Machined to OEM dimensions — 12 teeth, 50 mm bore, 2.55 kg — it transmits torque from the chain drive to the feeder working assembly without modification. Available in C45, 40Cr, and 42CrMo steel with quench-hardened teeth and optional black oxide or zinc-plate coating for extended service life in field conditions.

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84072022 Driven Sprocket for New Holland

84072022 Driven Sprocket for New Holland & Case IH Combine Feeders

OEM Reference: 84072022  |  Teeth: 12  |  Inner Diameter: 50 mm  |  Weight: 2.55 kg

This replacement driven sprocket is precision-machined to replace OEM part 84072022 on New Holland and Case IH combine harvesters. It transfers torque from the feeder chain drive to the working assemblies, maintaining consistent crop flow at the header-to-elevator interface. The component is manufactured from alloy steel and receives a corrosion-resistant surface coating, extending service intervals under the abrasive conditions typical of grain and straw harvesting.

Suitable for a confirmed list of Case IH models — CS520, CS540, CS6050, CS6060, CS6070, CS6080, CS6090, CS640, CS660, CSX7040, CSX7050, CSX7060, CSX7070, CSX7080, CSX720 — and equivalent New Holland feeder conveyor applications. Drop-in fitment eliminates modification during harvest-season maintenance.

Technical Specifications and Material Composition

ParameterUnitValue
OEM Part Number—84072022
Number of Teeth (Z)—12
Inner Diameter (d)mm50
Weight (W)kg2.55
Material Options—C45, 40Cr, 42CrMo, 20CrMnTi, A3, Stainless Steel, Copper
Series Type—A Series (Plate), B Series (Boss) — Simplex / Duplex / Triplex
Surface Treatment—Black Oxide, Zinc Plate, Oil Dip, Polishing, Electrophoresis
Hardness—HB or HRC (selectable per order)
Manufacturing Process—Forging → Machining → Hobbing → Teeth Quench-Hardening → Surface Treatment → QC → Packing

Why Our Driven Sprockets Outperform OEM Standards

OEM replacement parts are priced at a premium because they carry the brand markup, not because the metallurgy is superior. Our agricultural sprockets use the same alloy grades — C45 and 42CrMo are standard options — but the teeth are quench-hardened and then surface-coated before final QC inspection. This process sequence, hobbing before hardening, produces tighter tooth-profile tolerances than post-hardening grinding alone, which translates directly to less chain-pitch wear over a full harvest season.

  • Tooth-to-tooth pitch accuracy: CNC hobbing holds pitch deviation within ±0.05 mm, keeping chain engagement smooth across the full 12-tooth profile.
  • Case-hardened tooth flanks: Post-hobbing quench hardening builds a hard surface layer while keeping the core tough, resisting the impact loads typical of straw and cob material entering the feeder.
  • Corrosion-resistant coating: Black oxide or zinc-plate finish reduces surface oxidation in humid storage conditions between seasons.
  • Verified cross-reference: Every batch is dimensionally checked against the 84072022 drawing — 50 mm bore, 12 teeth — before shipping.
  • Custom steel driven sprocket manufacturing: Non-standard bores, tooth counts, or surface specifications are available on request with lead times from 15 working days.

Key Features and Benefits for Combine Harvester Maintenance

Feeder chain downtime during harvest costs more than the sprocket itself. These points explain the design choices made to minimise that risk.

Direct-Fit Replacement

50 mm bore and 12-tooth profile matches the 84072022 drawing exactly. No bore modification or shimming required on any of the listed Case IH or New Holland models.

Multi-Material Selection

Choose from A3 for cost-sensitive budgets, C45 for general agricultural use, 40Cr for higher cyclic loads, or 42CrMo where torque peaks exceed standard harvest conditions.

Duplex and Triplex Chain Compatibility

A and B series configurations cover simplex through triplex chain drives, making the same part usable on different conveyor widths without sourcing multiple SKUs.

Integrated Quality Inspection

Each batch goes through dimensional verification and surface-hardness testing before packing. Inspection reports are available on request for fleet maintenance records.

Competitive Lead Time

Standard dimensions ship from stock. Custom specifications — bore size, tooth count, or special coatings — carry a 15-working-day production lead time from order confirmation.

Bulk-Order Pricing

Pricing scales with volume. Dealers and agricultural machinery repair shops sourcing 20+ units per order receive structured discount tiers — contact us for a current schedule.

Key Features and Benefits for Combine Harvester Maintenance

Applications and Compatible Models

This replacement sprocket is verified for use on the following Case IH combine harvester models:

CS520
CS540
CS6050
CS6060
CS6070
CS6080
CS6090
CS640
CS660
CSX7040
CSX7050
CSX7060
CSX7070
CSX7080
CSX720

Also suited for New Holland combine feeder conveyor systems where the feeder chain driven sprocket shares the same bore and tooth geometry. If your model is not listed above, send us your machine serial number and we will confirm compatibility within one business day.

Frequently Asked Questions

Q1: Is this an exact replacement for OEM part 84072022?

Yes. Bore diameter is 50 mm, tooth count is 12, and weight is 2.55 kg — all matching the original drawing. No machining or modification is required for listed models.

Q2: Which chain type does this driven sprocket work with?

It is available in A Series (plate hub) and B Series (boss hub) configurations, covering simplex, duplex, and triplex roller chains. Specify your chain pitch and strand count when ordering.

Q3: Can I order a custom steel driven sprocket with a different bore or tooth count?

Yes. Custom specifications are supported. Provide bore size, pitch diameter, tooth count, material grade, and surface finish. Standard lead time for custom orders is 15 working days.

Q4: How do I know when the feeder chain agricultural sprocket needs replacing?

Check for hooked or sharpened tooth tips, chain skip under load, or visible wear grooves on the tooth flanks. A worn sprocket accelerates chain stretch — replacing both at the same service interval is recommended.

Q5: What surface treatment options are available?

Standard options are black oxide and zinc plate for corrosion resistance. Oil dip, polishing, and electrophoresis coatings are also available. Hardness can be specified as HB (Brinell) or HRC (Rockwell) depending on the application load.

Frequently Paired Products

A driven sprocket functions as part of a chain drive system. The following components are typically replaced at the same service interval or ordered alongside this part:

Feeder Conveyor Chain

Roller chain matched to the 12-tooth sprocket pitch. Replacing the chain alongside the sprocket prevents rapid re-wear.

PTO Drive Shaft

Transmits engine power to the header. We stock telescoping PTO shafts with overrun clutch and shear-bolt protection for combine and header applications.

Drive / Idler Sprockets

Matching drive and idler sprockets for the same feeder chain loop, available in the same material and surface-treatment options.

Planetary Gearbox

Compact inline reduction for header drives. Multiple ratio options; suitable for wheel-loader, harvester, and track-drive applications.

Ready to Order or Need a Custom Specification?

Send us your model number, chain pitch, and required quantity. We respond within one business day with a confirmed price and availability.

Beyond driven sprockets, we manufacture and supply a full range of power transmission components — PTO Shafts, Agricultural Machinery Hydraulic Cylinders, Roller Chains, Agricultural Gearboxand Worm Gear Sets — all available for direct export with B2B volume pricing.


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