Description

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 or . We’re here to help you find the right solution.

Matching offset links and roller chain also available.