Sprockets for Combine Harvesters — Crop Processing Chain Drives
Combine harvester sprockets drive the chain mechanisms in grain headers, feeder houses, threshing systems, cleaning shoe drives, and grain elevator augers. These sprockets operate in extreme dust, heat, and crop residue conditions during peak harvest season with zero tolerance for downtime. We supply harvester sprockets in ANSI #50–#80 and ISO 10B–16B with heavy zinc plating, induction-hardened teeth, and precision bores matched to common harvester shaft sizes.
Specifications (20 Parameters)
| المعلمة | يتراوح | مخصص |
|---|---|---|
| يقذف | 15.875–25.4mm | نعم |
| سلسلة | ANSI #50, #60, #80 / ISO 10B–16B | نعم |
| أسنان | 13–40T | 9–60T |
| مادة | C45 / 4140 | — |
| صلابة | HRC 40–50 | — |
| سطح | Heavy zinc plate | Zinc-nickel, HDG |
| مَركَز | B-Hub keyed | TL, QD |
| ثقب | H7, 20–50mm | Imperial available |
| ستراند | Simplex / Duplex | — |
| سرعة | Up to 1,200 RPM | — |
| درجة حرارة | -5°C to +55°C | — |
| Dust Exposure | Extreme — hardened teeth essential | — |
| مفتاح الفتحة | DIN 6885 / Imperial | — |
| TIR | ≤0.03 مم | — |
| PD (19T #60) | 115.4mm | — |
| OD (19T #60) | 127.0mm | — |
| Max Bore (19T #60) | 35mm | — |
| Weight (19T #60) | 1.4 kg | — |
| Lubrication | Chain oil / grease | — |
| شهادة | ISO 9001 | EN 10204 3.1 |
مبدأ العمل / المزايا
أين: Header drive, feeder house chain, threshing drum, straw walker, grain elevator, tailings return. وظيفة: Drive crop through cutting, threshing, separation, and grain transport stages simultaneously.
✅ Zinc-plated vs bare steel — survives harvest season stored outdoors without corrosion.
✅ HRC 40-50 teeth — resists abrasive crop dust and chaff. Unhardened teeth wear mid-season causing costly downtime.
✅ Precision bore — vibration-free at high RPM on threshing drum drives.
التوافق / الاختيار
الشركة المصنعة الأصلية: John Deere*, Case IH*, Claas*, New Holland*, AGCO/Massey Ferguson* harvesters.
*Compatibility reference only.
يختار: ❶ OEM model → identify chain ❷ Shaft bore (metric or imperial) ❸ Tooth count ❹ Zinc plated for outdoor ❺ Order pre-season for harvest readiness.
Install / Troubleshoot
Install: Engine off → remove belt guards → release chain → swap sprocket → align → tension → lubricate → test at idle RPM.
Issues: Mid-harvest tooth wear = dust ingress (use hardened + pre-season replacement). Chain wrapping around sprocket = broken chain strand (replace immediately). Vibration = bore wear (replace sprocket).
دراسات الحالة
Moree, NSW: “Pre-season sprocket kit for our JD S780. All 8 sprockets matched OEM specs. Harvest ran without a single chain issue.” ★★★★★
Emerald, QLD: “Zinc-plated #60 for our sorghum harvester feeder house. Survived two seasons in tropical humidity.” ★★★★★
Esperance, WA: “Bulk sprocket order for 5 harvesters. Consistent bore dimensions across the lot. Good pricing.” ★★★★☆
Horsham, VIC: “Hardened teeth on grain elevator sprocket. Previous unhardened brand wore out mid-harvest. These lasted the full season.” ★★★★★
Clare, SA: “#80 on our Claas header drive. Imperial bore machined to spec. Fitted perfectly.” ★★★★★
التعليمات
Pre-season sprocket kits?
Imperial bore for older harvesters?
How often replace harvester sprockets?
Fleet pricing?
الحد الأدنى للطلب؟
Harvester Chains
Tensioners
✅ ISO 9001 ✅ ANSI/ISO ✅ Zinc-plated ✅ Hardened teeth | Ever-Power: agricultural sprocket specialist.
