Description
Overview:
The V-Flex A31 Smooth Rubber Drive V-Belt is a classical A‐section belt designed for dependable power transmission across a wide range of machinery. Made from smooth, durable black rubber, it provides a firm, consistent grip on standard V‐pulleys for efficient drive performance. With a circumference of 31 inches (78.74 cm / 787.4 mm), a top width of 13 mm, and a height of 8 mm, it suits compact drives where space is limited. A minimum pulley diameter (PCD) of 63 mm helps maintain flexibility and belt life on smaller pulleys. Suitable for workshop tools, light industrial equipment, and garden or site machinery, this A31 belt is a practical replacement choice where a robust, low‐slip drive is required. Manufactured by V‐Flex.
Key Features:
- Classical A‐section profile: 13 mm top width x 8 mm height for common V‐pulley compatibility
- Length: 31 in (78.74 cm / 787.4 mm) for compact belt runs and tight installations
- Smooth, durable rubber construction for steady traction and reliable power transfer
- Minimum pulley diameter (PCD): 63 mm to support use on smaller drive systems
- Stable running with reduced slip for consistent speed and torque delivery
- Straightforward to fit and tension on standard A‐profile pulleys
- Suited to single‐belt drives in general industrial, agricultural, and garden equipment
- Robust build aimed at long service life under everyday operating conditions
Typical Applications:
Commonly used on pumps, compressors, small generators, workshop machines (such as drill presses and saws), lawn and garden equipment, concrete mixers, and other compact belt‐driven systems. Ideal where a reliable A‐section belt is needed to transfer power between engine or motor pulleys and driven components.
Also known as:
A31 belt, A‐section V‐belt, classical A profile belt, 13×8 mm V‐belt, power transmission belt, pulley belt, fan belt, serpentine belt, drive belt.
Product Specifications
| L&S Part No. | A31 |
|---|---|
| Manufacturer | V-Flex |
| OEM No. | A31 |
| Unit of Sale | 1 |
| Size | Circumference 31", Width: 13mm, Height: 8mm |
| Machine Type | Engines |
| Key Features | - Classical A-section: 13 mm width x 8 mm height - Length: 31 inches (787.4 mm) for compact installations - Minimum pulley diameter: 63 mm for small drive systems - Smooth rubber for steady traction and power transfer - Suitable for workshop, industrial, and garden machinery |



