New Holland 86630312 Sprocket Driving agriculture parts 86630873 for NEW HOLLAND BC5060 BC5070 570 baler

Product Advantage

The 86630312 Driving Sprocket (replacement for 86630873) is a core power transmission component customized for New Holland agricultural equipment, specifically engineered to fit NEW HOLLAND BC5060 and 5070 small square balers. It serves as a critical driver in the baler’s key operational systems—including the baling chamber conveyor, twine feeding mechanism, and material compression assembly—enabling precise torque transfer and synchronized operation of linked components (e.g., chains, shafts). Designed to withstand the continuous meshing stress and load impact of baling operations (e.g., high-volume hay compaction, repetitive material handling), it ensures stable power transmission and consistent rotational speed, preventing chain slippage or operational jams. This reliability minimizes unexpected downtime in harsh field conditions, from dusty harvest environments to extended working hours and temperature fluctuations, safeguarding uninterrupted baling efficiency.

Design

 The 86630312 Driving Sprocket (replacement for 86630873) is precision-manufactured to match New Holland’s original OEM specifications, ensuring seamless integration with the BC5060 and 5070 balers’ existing chain systems, shafts, and mounting brackets. Its structural design features optimized tooth profile, pitch, and number of teeth, tailored to the balers’ transmission ratio requirements for tight meshing with matching chains and zero interference with surrounding components (e.g., protective covers, hydraulic lines). Constructed with high-strength, wear-resistant alloy steel, the sprocket delivers exceptional structural rigidity and tooth durability, capable of enduring repeated meshing friction without tooth wear or deformation. Key design details—including precision-machined bore holes, keyways, and mounting surfaces—ensure secure attachment to drive shafts, eliminating rotational slippage during high-torque operation. The sprocket’s surface treatment (e.g., carburizing, quenching) enhances hardness and corrosion resistance, protecting against moisture, agricultural chemicals, and field debris.

Dimensions

Manufactured to strict New Holland factory standards, the 86630312 Driving Sprocket (replacement for 86630873) enables direct replacement for NEW HOLLAND BC5060 and 5070 balers without modifying original equipment structures or mounting points. Critical dimensions—including pitch diameter, number of teeth, bore diameter, keyway size, and mounting face tolerance—are precision-machined to tight tolerances, ensuring perfect alignment with drive shafts, chains, and adjacent transmission components. All contact surfaces (including tooth flanks and bore inner walls) feature a smooth, high-precision finish to reduce meshing friction, promote uniform force distribution, and simplify installation. This dimensional accuracy eliminates mismatches that could cause chain wear, vibration, or transmission inefficiencies, guaranteeing consistent performance across every baling cycle.

Performance & Durability

Crafted from OEM-grade, high-strength alloy steel compliant with New Holland’s material standards, the 86630312 Driving Sprocket (replacement for 86630873) delivers outstanding durability and performance under the demanding conditions of agricultural baling. It exhibits exceptional tooth wear resistance and impact strength, withstanding continuous chain meshing and load fluctuations without tooth chipping or structural deformation. The sprocket maintains meshing precision and rotational stability across a wide temperature range (-30°C to 120°C), adapting to extreme weather from cold winters to hot harvest seasons. Its wear-resistant surface treatment and corrosion-proof design prevent degradation from lubricants, hydraulic fluids, dust, and field debris, extending service life and reducing frequent replacement needs. It reliably endures the rigors of high-volume hay baling, long working hours, and rough field terrain, ensuring consistent power transmission for uninterrupted baler operation.

Excellent Cost-Effectiveness

As a direct factory supplier, we offer the 86630312 Driving Sprocket (replacement for 86630873) at OEM-quality standards with more competitive pricing than original New Holland components. Every unit undergoes rigorous quality inspections—including dimensional accuracy checks, tooth hardness testing, wear resistance verification, and compatibility validation with BC5060/5070 balers and 86630873 original parts—ensuring no compromise on performance or reliability. This sprocket provides a cost-efficient alternative to expensive OEM parts, helping farmers and equipment operators lower maintenance costs while preserving the critical functionality of their New Holland balers. Its long service life and consistent performance further reduce total ownership costs by minimizing replacement frequency and downtime-related losses.

Large Inventory & Fast Delivery

We maintain a substantial inventory of the 86630312 Driving Sprocket (replacement for 86630873), specifically stocked for NEW HOLLAND BC5060 and 5070 balers, to ensure fast order fulfillment—even during peak agricultural seasons (e.g., hay baling, harvest periods). We also provide professional technical support, including model-specific installation guidance (e.g., proper mounting torque, chain alignment procedures), inspection tips (e.g., tooth wear check), and maintenance recommendations (e.g., lubrication frequency) to optimize performance. Backed by a reliable after-sales guarantee (e.g., free replacement for quality-related defects within 12 months), we ensure a hassle-free procurement experience. This timely availability and dedicated support minimize equipment downtime caused by delayed replacement of this critical transmission component.