Jason Industrial A85 Wrapped V-belt 87in a Section

Product Description

The JASON INDUSTRIAL A85 is a wrapped, classical A-section V-belt designed for industrial and commercial power transmission drives. Built from a natural rubber and SBR compound, this belt delivers reliable grip and flex across a wide range of drive configurations. It measures 87 inches in outside length, 1/2 inch in top width, and 11/32 inch in thickness, making it a standard A85 cross-section fit. The belt is engineered for use in single or multiple V-belt drive systems, with UniMatch construction that keeps performance consistent when run in tandem sets. Licensed HVAC technicians, millwrights, and equipment service professionals are the primary installers.

The A85 is suited for residential and light commercial applications including HVAC blower assemblies, agricultural equipment, compressors, pumps, and general machinery drives that use A-section belt sheaves. The dual branding on the belt cross-references both the classical A85 and the fractional horsepower 4L870 designation, allowing technicians to confirm fitment from either numbering system. This simplifies stocking and reduces the need to carry separate classical and FHP inventories. The belt performs reliably from -22 degrees F to 176 degrees F, and resists degradation from incidental oil exposure and heat typical of mechanical drive environments.

Key Features

• UniMatch construction ensures consistent length matching for multi-belt drive applications within ARPM IP-20 standards
• Dual-branded A85 and 4L870 cross-reference simplifies inventory and field identification
• Natural rubber and SBR compound provides oil resistance and heat tolerance
• Anti-static construction reduces static discharge risk in sensitive drive environments
• Rated for operating temperatures from -22 degrees F to 176 degrees F
• Conforms to ARPM IP-20 standards for classical V-belt dimensions and matching

Compatibility

Designed as a direct replacement for standard A-section and 4L-section V-belt applications requiring an 87-inch outside length. The dual A85 and 4L870 marking allows this belt to replace both classical A-section and fractional horsepower 4L870-designated belts in compatible sheave drives.

Installation Notes

V-belt replacement should be performed by a qualified technician with the drive system fully de-energized and locked out per NFPA 70E or applicable facility safety procedures. When replacing belts in a multi-belt drive, all belts in the set should be replaced simultaneously to maintain matched performance. Never use tools to force a belt over sheave flanges; relieve tension by adjusting the drive center distance before seating the belt. Confirm sheave alignment and inspect for sheave wear before installation.