John:​ "I need high tooth count sprockets for my mining equipment. Where can I find reliable factories in China?"

Emily:​ "Great question! Let me break down the key factors to consider and share my experience with sourcing these components..."

What Are High Tooth Count Sprockets?​

Sprockets with high tooth counts (e.g., 20T-60T) are designed for heavy-duty applications like mining, construction, and agricultural machinery. They provide smoother power transmission and reduce wear on chains.

Key Features:​

• Tooth Count:​ 20T to 60T (common for large-diameter applications)

• Material:​ Carbon steel, stainless steel, or alloy (hardened for durability)

• Bore Types:​ Finished bore, tapered bore, or custom pilot holes

Top 3 Factors When Choosing a Factory​

1️⃣ Certifications & Standards​

• Look for ISO 9001-certified factories (e.g., Osten Machinerymeets both ANSI and DIN standards)

• Verify material certifications (e.g., SGS-tested C45 steel)

2️⃣ Customization Capabilities​

• Can they produce non-standard sizes?

• Do they offer heat treatment (quenching/tempering)?

3️⃣ Minimum Order Quantity (MOQ)​

• Most factories have MOQs of 50-500 pieces, but niche suppliers like Shaoxing Shangyu Shengtaiaccept smaller batches

Step-by-Step Sourcing Guide​

Step 1: Define Requirements​

• Example: "16B-20T sprockets with 1450mm max diameter and tapered bore"

Step 2: Shortlist Factories​

• Use Alibaba to filter suppliers with:

  • 5+ years in power transmission

  • Gold supplier status

  • Positive reviews (e.g., "Fast delivery" and "Good packaging" tags)

Step 3: Request Samples​

• Cost: $50-$200 per sample

• Key checks:

  • Surface finish (zinc plating/black oxide)

  • Teeth hardness (HRC 50-56 recommended)

Step 4: Negotiate Terms​

• Pricing: $1.50-$15/piece (depends on material and complexity)

• Lead Time: 15-45 days (factor in QC inspections)

⚠️ Common Pitfalls to Avoid​

• Low-Quality Bearings:​ Ensure hubs use tapered roller bearings (e.g., SKF or FAG)

• Incorrect Bore Sizes:​ Confirm pilot bore tolerance (±0.05mm)

• Shipping Delays:​ Opt for factories near Shanghai/Xiamen ports

️ Recommended Supplier​

For custom orders, I recommend Osten Machinery (Xuzhou) Co., Ltd.​ (TEL: +086 15852310290). They specialize in:

• High tooth count sprockets (up to 140T)

• Large-diameter applications (1450mm max)

• Global shipping with FOB/CIF options

Related Keywords​

Custom chain sprockets, high tooth count industrial sprockets, large diameter roller chain sprockets, durable tapered bore sprockets, OEM sprocket manufacturers, China sprocket suppliers, heavy-duty chain drive components, sprocket heat treatment, sprocket surface finishing, mining machinery sprockets

# Where to Find Custom Large Diameter Sprockets with  # [Factory Guide] 

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