Graco 15D156 Rotor Pulley

Graco 15D156 Rotor Pulley

The Graco 15D156 Rotor Pulley is an OEM-quality rotating drive component used in Graco compressor or pump assemblies. It ensures smooth power transfer from the motor to the rotor, helping maintain reliable and consistent operation under load.

Key Features

• Precision-machined for stable rotor engagement and minimal vibration
• Designed for high-stress rotation in Graco compressor or pump systems
• OEM part — ensures exact fit and alignment for Graco assemblies
• Heavy-duty construction to withstand prolonged operation
• Optimized to maintain efficient torque transfer and reduce wear on belts or couplings

Technical Specifications

Function & Role

The rotor pulley plays a critical role in the mechanical system, coupling the motor’s rotational energy to the rotor or drive shaft. This pulley maintains correct alignment and tension, promoting efficient operation and reducing stress on drive belts or coupling interfaces.

Applications & Compatibility

According to Graco’s service parts manual for certain sprayers and compressors, the 15D156 pulley is used in their compressor modules. 

• Found in Graco 310645-series compressor assemblies
• Ensures rotational power transfer in Graco texture sprayer compressors

Installation & Maintenance

• Verify pulley alignment on the shaft before tightening to avoid wobble
• Use the correct torque setting on mounting hardware to prevent slippage or damage
• Inspect periodically for wear, corrosion, or cracked grooves
• Replace if the pulley shows signs of deformation or imbalance to avoid damaging belts or the rotor
• Ensure belt (if used) is tensioned properly to avoid slipping or premature wear

Frequently Asked Questions