With our lineup of variable speed belts, get superior control over speeds and optimum efficiency. We offer high-performance Variable Speed V-Belts for machinery and plant construction that operates at variable speed ratios as well as guarantees lasting operating torque and long-term durability.

Our belts are manufactured to strict specifications so they more than meet the demands of any industrial, commercial or agricultural application.

Why Choose Variable Speed V-Belts?

Variable speed belts (also known as metric variable speed belts) are specially constructed to accommodate changes in pulley diameter, enabling precise speed adjustment in mechanical systems.

Key Benefits

• Designed for smooth speed variation across a wide range
• Exceptional flexibility for fluctuating pulley widths
• High resistance to heat, wear, oil, and deformation
• Delivers consistent power transmission efficiency
• Suitable for high-speed, high-tension variable drive systems
• Long service life even in harsh industrial environments

Applications of Variable Speed Belts

Our variable speed V-belts are used in:

• Variable speed belt drive systems
• Industrial machinery & plant equipment
• Agricultural machines
• Textile machinery and looms
• Printing & packaging systems
• Woodworking and metalworking equipment
• HVAC systems requiring adjustable fan speeds

These belts ensure accurate control, stable performance, and optimal efficiency across a variety of applications.

How Variable Speed Belts Work

Variable speed belts operate within a variable pitch pulley system, where the pulley width adjusts based on load and required speed.
This allows the belt to move higher or lower within the pulley groove, enabling:

• Higher speeds when the pulley width decreases
• Lower speeds when the pulley width increases

This mechanism provides smooth and precise speed variation without slip or loss of torque.

Selecting the Right Variable Speed Belt

Choosing the correct belt ensures maximum performance and reduced machine downtime.

1. Measure Belt Length

Identify the inside or outside length of your current belt using a flexible measuring tape.

2. Check Belt Width & Height

Variable speed belts come in varying widths to match pulley ranges. Always select belts compatible with your pulley profile.

3. Confirm Metric or Imperial Type

We offer metric variable speed belts suitable for European and international machinery standards.

4. Review Speed Ratio Requirements

Ensure the belt supports the required speed range and torque capacity for your machine.

If needed, our engineering support team can help determine the exact belt specification for your variable speed system.

Why Buy From Bolton Engineering Products Ltd?

• Trusted UK supplier with decades of experience
• High-quality variable speed belts from certified manufacturers
• Large stock availability for fast dispatch
• Competitive pricing for single belts and bulk orders
• Technical support to help match the correct belt
• Reliable, long-lasting performance you can count on

Frequently Asked Questions (FAQs)

1. What is a variable speed belt?

A variable speed belt is designed for adjustable pulley systems, allowing smooth and precise speed control while maintaining efficient power transmission.

2. Are variable speed V-belts better for high-speed applications?

Yes. Their flexible, reinforced construction makes them suitable for high-speed and variable load conditions.

3. Do you supply metric variable speed belts?

Yes, BEP Ltd stocks a full range of metric variable speed belts for European and international machinery.

4. How long do variable speed belts last?

With proper alignment and maintenance, these belts deliver excellent durability and resist wear, heat, and deformation.