#140H-1 Heavy Duty Connector Link (Master Link) - ANSI Standard Roller Chain

#140H-1 Heavy Duty Connector Link for Precision Roller Chain

Premium ANSI standard heavy-duty connector link (also called a master link) for #140H-1 precision roller chain. Essential for joining chain ends and enabling quick assembly and disassembly in high-load agricultural equipment, conveyors, and industrial machinery requiring maximum strength.

Key Features:

• ANSI standard compliant - works with all standard #140H heavy-duty roller chain
• Heavy-duty design for increased load capacity over standard #140 chain
• Available with cotter pin or riveted attachment
• Heat-treated components for maximum strength and durability
• Precision manufactured for proper fit and smooth operation
• Enables quick chain assembly and disassembly
• Sold individually

ANSI Specifications:

• Chain Size: #140H-1 Heavy Duty
• Pitch (P): 1.750"
• Roller Width (W): 1.000"
• Pin Diameter: 0.500"
• Plate Thickness: Heavier than standard #140 for increased strength

What is a Connector Link?

A connector link (also called a master link or connecting link) is a special removable link used to join the two ends of a roller chain loop. Unlike standard chain links that are permanently assembled, connector links feature a removable side plate secured with either a cotter pin or rivet. This design allows you to connect and disconnect chain without special tools, making installation, maintenance, and repairs much easier.

Attachment Options:

• Cotter Pin (Recommended): Secure attachment for high-load applications, pins must be properly spread after installation
• Riveted: Permanent installation for maximum strength, use when connector link will not need removal

Installation Notes:

• Connector links are slightly weaker than standard links - position away from high-stress areas when possible
• For cotter pin style, ensure pins are properly spread after installation
• Inspect cotter pins regularly and replace if damaged or loose
• Consider using offset link if odd number of chain links is required

Common Applications:

• Heavy-duty agricultural equipment and machinery
• High-load conveyors and material handling systems
• Industrial drives requiring increased strength over standard chain
• Any application requiring periodic chain removal for maintenance

Expert Help from the Midwest

Based in the heart of American agriculture, we bring over 17 years of hands-on experience specializing in agricultural chain systems. Need help selecting the right connector link attachment style or have questions about installation? Call us at 815-973-2648 or 800-648-5429. We're here to help you find the right solution.

Matching offset links and roller chain also available.