Heavy-Duty Cornhead Gathering Chain Lower Idler Sprocket Unit
- group name
- Customized Sprockets
- Min Order
- 1 piece
- brand name
- CTS-ChinaTransmissionS
- model
- Sprocket For Steel CA-type Agricultural Chain
- Nearest port for product export
- Shanghai, Ningbo, Tianjing, Guangzhou
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW
- Acceptable payment methods
- T/T, L/C, D/P D/A, MoneyGram, PayPal, Westem Union, Cash
- update time
- Sun, 08 Feb 2026 03:24:06 GMT
Paramtents
Material Carbon Steel
Color Natural
Surface Treatment Blackening/Galvanizing/Phosphating
Accuracy Precision teeth for optimum performance
Quality Superior Industrial Sprocket
Interchangeability Directly interchangeable with other brands
Packging & Delivery
-
Min Order1 piece
Briefing
Heavy-duty idler sprocket for cornhead gathering chains. Sealed bearing & hardened steel.
Detailed
The Importance of Replacing Sprocket
Harvest windows are short, and downtime is expensive. This Lower Idler Sprocket Unit is engineered specifically for the brutal environment of corn harvesting. Located at the bottom of the row unit, this component takes the brunt of the dirt and load.
Standard replacement idlers often fail when dust penetrates cheap bearing seals, causing them to seize up and snap your gathering chains. Our units are built differently. We utilize industrial-grade, multi-seal bearings encased in a hardened steel sprocket body. Whether you are running in dry dust or wet, muddy conditions, this idler ensures consistent chain tension and reliable crop intake into the auger.
Swap it out quickly before the season starts and harvest with confidence.
Features
- Complete Assembly
- Premium Sealed Bearing
- Induction-Hardened Steel
- Precision OEM Fitment
- Maintenance-Free
Low Idler Sprocket Specifications & Compatibility
| Specification | Details | ||
Part Type | Lower Gathering Chain Idler Sprocket Unit / Assembly | ||
| Installation Position | Bottom (Stalk entry point on row unit) | ||
| Tooth Count | [e.g., 8-Tooth / 10-Tooth - Please verify your stock] | ||
| Material | Heat-treated Carbon Steel | ||
Bearing Type | Double Sealed Precision Ball Bearing (Pre-lube) | ||
Bore Diameter | [e.g., 5/8" or 16mm - verify actual size ] | ||
OEM Part Number Cross-Reference
OEM Part Number Cross-Reference: Use the search bar to find your part number. This unit replaces the following:
• Case IH: 1985955C2, 175931C91 (Examples - Please verify)
Fits Models (Application List)
This part fits a wide range of corn heads, including but not limited to:
• John Deere: 40 Series, 90 Series, 600 Series (e.g., 693, 893, 1293)
• Case IH: 1000 Series, 2200 Series, 2400 Series, 3000 Series
(Note: Always check your parts manual to confirm fitment based on your specific serial number.)
FAQs
Does This Come With The Bearing Installed?
Yes, this is a complete "unit" or "assembly." The heavy-duty sealed bearing is already pressed into the sprocket hub. It is ready to bolt on.
Do I need to grease this sprocket?
No. It uses a sealed-for-life bearing pre-packed with high-quality grease designed to last through normal harvest seasons without maintenance.
How do I know if my current idler needs replacing?
Check for excessive side-to-side wobble, rough or gritty rotation when spun by hand, or significant wear/hooking on the sprocket teeth profiles.