The Clock Spring Window Balance, 150 Overhead Style, is a reliable and durable solution designed to provide smooth, controlled operation for overhead and vertical window systems. Engineered to support sash weights up to 30 lbs, this balance ensures consistent performance, reduced wear, and long-lasting functionality in residential and light commercial applications. 

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• Clock Spring Balance, 150 Overhead Style
• Supports Sash Weights Up to 30 lbs
• Clock Spring Balances Sold Individually, Instructions Included
• See Product Images for Dimensions

Key Features

• 30 lb Weight Capacity – Ideal for medium-weight window sashes, ensuring stable and effortless operation
• 150 Overhead Style Design – Specifically built for overhead mounting configurations, offering optimal tension and support
• Clock Spring Mechanism – Delivers consistent counterbalance force for smooth opening and closing
• Durable Construction – Made with high-quality materials to resist fatigue, corrosion, and daily wear
• Easy Installation & Replacement – Compatible with a wide range of window systems for quick maintenance or upgrades

Benefits

• Improves window safety by preventing sudden drops
• Enhances ease of use with balanced, controlled movement
• Extends window lifespan by reducing strain on components
• Minimizes maintenance with dependable spring tension over time

Common Applications

• Residential double-hung windows
• Commercial window systems
• Replacement for worn or broken overhead balances
• Retrofit projects requiring precise sash weight support

Specifications

• Style: 150 Overhead
• Weight Capacity: 30 lbs
• Mechanism: Clock Spring
• Mounting Type: Overhead
• Application: Vertical and overhead window systems

Frequently Asked Questions (FAQs)

What is a clock spring window balance?
A clock spring window balance uses a coiled spring mechanism to counterbalance the weight of a window sash, allowing it to open and close smoothly while staying in position.

How do I know if I need a 30 lb window balance?
You need a 30 lb balance if your window sash weighs approximately 30 pounds. Proper weight matching ensures optimal performance and safety.

What does “150 overhead style” mean?
It refers to a specific mounting and design configuration where the balance is installed overhead, commonly used in certain window systems requiring top-mounted support.

Can I replace a window balance myself?
Yes, most window balances, including this model, are designed for straightforward replacement with basic tools, though professional installation is recommended for best results.

Why Choose This Window Balance?

This Clock Spring Window Balance combines precision engineering with durable materials to deliver dependable performance. Whether you're repairing a window or upgrading components, it ensures smooth operation, improved safety, and long-term reliability.