Versatile compatibility: available with 19mm and 24mm inner diameter options, this aluminum motor pulley fits a wide range of air compressor configurations and applications, providing a reliable match for your mechanical needs. Durable construction: made from aluminum alloy, this Atype single groove belt wheel is designed to endure rigorous operating conditions and maintain structural integrity over extended use. Efficient performance: with a 100mm diameter and 6mm or 8mm keyway width, it is engineered for Atype triangular belts to minimize slippage and ensure smooth power transmission in your air compressor system. Precise dimensions: featuring an approximate 100mm diameter and 13mm belt groove width, this single slot pulley delivers accurate fitment and alignment for diverse compressor setups and replacement projects. Use scenarios: Replacing a worn pulley in home or workshop air compressors that use Atype triangular belts, ensuring a secure fit and reliable operation. Upgrading drive components in small to midsize machinery that require a 100mm diameter pulley with a 13mm belt groove and 6mm or 8mm keyway. Replacing or upgrading pulleys in maintenance projects where precise alignment and secure mounting are required to minimize belt slip and improve overall performance.