Pivot lock shoes are critical components in modern tilt window systems, yet they are often misunderstood or incorrectly named. Homeowners, contractors, and even some suppliers frequently refer to them using inaccurate terms such as “window clips” or “balance locks.” Understanding the correct terminology for pivot lock shoes and their parts is essential for accurate identification, repair, and replacement.

This article explains what pivot lock shoes are, how they function, and the proper names for each of their key components.

What Is a Pivot Lock Shoe?

A pivot lock shoe is a mechanical device that connects a window sash to the window balance system. Pivot lock shoes are only found in tilt window applications. It travels vertically inside the window jamb and allows the sash to tilt inward for cleaning while maintaining support from the balance.

Pivot lock shoes are most commonly used in:

• Single-hung windows

• Double-hung windows

• Tilt-in vinyl, aluminum, and composite windows

They work in conjunction with spiral balances, block-and-tackle balances, or constant force balances.

Common Incorrect Names 

Using incorrect terminology can lead to ordering the wrong part. Some common misnomers include:

• Window lock shoe

• Sash clip

• Tilt clip

• Balance clip

• Window pivot

The correct industry term is pivot lock shoe (sometimes shortened to lock shoe or pivot shoe).

Correct Terminology for Pivot Lock Shoes

Understanding the individual components of a pivot lock shoe is essential for troubleshooting and replacement. Below are the correct terms used by window manufacturers and repair professionals.

1. Shoe Housing (or Body)

The shoe housing is the main structural body of the pivot lock shoe. It is typically made from high-strength plastic or metal and rides inside the jamb liner track.

Function:

• Houses internal locking components

• Transfers sash weight to the balance

• Slides vertically with the balance system

2. Cam (Locking Cam)

The cam is the rotating internal component that locks or unlocks the shoe’s position in the jamb. The cam can be metal or plastic, depending on which pivot lock shoe you have. 

Function:

• Receives the pivot bar attached to the window sash

• Maintains a secure connection during normal operation

• Rotates when the sash is tilted inward

• A break is engaged to prevent uncontrolled movement during tilting

This part is sometimes incorrectly referred to as a “clip” or “latch,” but cam is the correct term.

Shoe Dimensional Terminology

When identifying or ordering pivot lock shoes, shoe depth and shoe width are critical measurement terms.

• Shoe width: Side-to-side measurement (commonly 1-1/4", 1-1/2", or 1-3/4")

• Shoe depth: Front-to-back measurement inside the track

These dimensions must match the jamb liner profile exactly.

Types of Pivot Lock Shoes

Pivot lock shoes are categorized based on their balance compatibility and cam design:

• Spiral balance pivot lock shoes

• Block-and-tackle pivot lock shoes

• Constant force pivot lock shoes

• Open cam pivot lock shoes

• Closed cam pivot lock shoes

Using the correct type ensures proper sash support and tilt functionality.

Why Correct Terminology Matters

Using accurate pivot lock shoe terminology helps:

• Prevent ordering incorrect replacement parts

• Improve communication with suppliers and technicians

• Ensure proper window operation and safety

• Reduce installation errors and callbacks

For professionals, correct terminology also improves documentation, training, and SEO visibility for repair services.

Conclusion

Pivot lock shoes play a vital role in window performance, yet they are often misunderstood due to inconsistent naming. Whether you’re a homeowner, installer, or window repair professional, understanding these terms will save time, reduce errors, and improve window functionality. For more information or assistance ordering the correct replacement shoes, Contact the WHD Team! We would be happy to help.