Bando 3VX1250 Cogged V-belt 3VX 125in Ol 3/8in

Product Description

The BANDO 3VX1250 is a narrow cogged V-belt designed for industrial and HVAC drive applications requiring reliable power transmission. Built to the 3VX section standard, it measures 125 inches outside length, 3/8 inch width, and 5/16 inch thickness. The cogged construction reduces bending resistance and heat buildup, allowing it to run on smaller-diameter sheaves at higher efficiency than a standard wrapped belt. The rubber compound is formulated to resist both heat and oil exposure, making it a practical choice in demanding mechanical environments. HVAC technicians, industrial mechanics, and equipment service pros use this belt type as a direct replacement in belt-driven fan and blower assemblies.

This belt is suited for use in commercial and residential HVAC systems, industrial equipment, and agricultural machinery where a 3VX narrow cogged belt is specified. It fits standard 3VX-groove sheaves and is commonly installed on belt-driven blowers, air handlers, compressors, and pump drives. The ARPM-standard sizing ensures dimensional consistency with OEM-specified 3VX belts from other manufacturers, making cross-reference replacement straightforward when the section and outside length match.

Key Features

• 3VX narrow cogged section with 125 inches outside length for long-span drive applications
• Cogged design reduces flex fatigue and operating temperature compared to wrapped belts
• Heat-resistant and oil-resistant rubber construction for demanding service environments
• Meets ARPM standards for dimensional interchangeability with other 3VX belts
• Black rubber finish; 3/8 inch wide by 5/16 inch thick cross-section

Compatibility

Designed as an OEM-style replacement for any drive system specifying a 3VX section belt with a 125 inch outside length and standard 3VX-groove sheaves, per ARPM dimensional standards.

Installation Notes

Belt replacement should be performed by a qualified HVAC technician or industrial mechanic. Disconnect and lock out all power to the drive unit before removing the old belt or repositioning the motor mount for slack. Never force a belt over a sheave flange; always release tension first using the motor adjustment. After installation, verify belt tension and sheave alignment before restoring power, and re-check tension after the first few hours of operation as new belts will seat and stretch slightly.