#120-1 Connector Link (Master Link) - ANSI Standard Roller Chain

#120-1 Connector Link for Precision Roller Chain

Premium ANSI standard connector link (also called a master link) for #120-1 precision roller chain. Essential for joining chain ends and enabling quick assembly and disassembly in agricultural equipment, conveyors, and industrial machinery.

Key Features:

• ANSI standard compliant - works with all standard #120 roller chain
• Available with spring clip, 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: #120-1
• Pitch (P): 1.500"
• Roller Width (W): 1.000"
• Pin Diameter: 0.437"

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 spring clip, 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:

• Spring Clip: Quick and easy installation, ideal for most applications
• Cotter Pin (Recommended): More secure than spring clips, recommended for higher-load applications
• 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
• Install with closed end of spring clip facing direction of chain travel
• Inspect spring clips regularly and replace if damaged or loose
• For cotter pin style, ensure pins are properly spread after installation
• Consider using offset link if odd number of chain links is required

Common Applications:

• Agricultural equipment and machinery
• Conveyors and material handling systems
• Industrial drives and transmissions
• 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.