Overview
The Dodge 118212 (2A3.2B3.6-1210) is a precision-engineered taper-lock V-belt sheave designed for reliable power transmission in industrial machinery. This Type A1 sheave features 2 grooves, 3.95 inch outside diameter, taper-lock bore, and a 1-3/4 inch face width. Manufactured under strict ISO 9002 quality standards, this cast-iron component delivers consistent performance in demanding applications.
Key Features
- Isolates shock loads and vibration with misalignment capability
- Achieves typically 95% efficiency with low maintenance and no lubrication required
- Enables drive ratios of 6:1 or more
- Quiet operation ideal for industrial environments
- Precision machining meets or exceeds RMA/MPTA industry standards for extended belt life
- Corrosion-resistant finish applied before packaging and shipping
Technical Specifications
The Dodge 118212 accommodates variable bore sizes through its 1210 taper-lock bushing system, allowing shaft diameters from 1/2 to 1-1/4 inch. The pitch diameters are 3.58 inches for A-section and 3.96 inches for B-section belts, providing precise belt alignment and load distribution. Static balance is suitable for most applications up to 6500 feet per minute rim speed.
Typical Applications
The Dodge 118212 is suitable for both standard and harsh-duty applications across industrial conveyors, compressors, pumps, blowers, and fan drives. The taper-lock design eliminates the need for shaft keys while maintaining firm grip, making it ideal for equipment retrofit and upgrades. Its high-efficiency power transmission makes it cost-effective for continuous-duty operations.
Compatibility & Replacements
Compatible With
- A and B cross-section V-belts
- 1210 taper-lock bushing systems
- 1/2 to 1-1/4 inch bore shaft diameters
- Industrial motor drives (AC and DC)
- Standard conveyor and pump systems
Replaces / Drop-In Replacement For
- Dodge Type A1 taper-lock sheaves with 2A3.2B3.6 groove configuration
- Legacy 118212 surplus or used units
- OEM equipment replacement pulleys with equivalent taper-lock 1210 bushing
Works With
- Taper-lock bushing installation tools and procedures
- Standard V-belt assembly and alignment practices
- RMA/MPTA industry standard belt sizing charts
- Baldor-Dodge industrial drive ecosystems and product lines
