ST23432 Mortar & Plaster Mixer Bearings & Seals — Industrial Alloy Steel + Heat-Resistant Rubber | Fits Stone Mixer 655/855PM | Wear & Heat Resistant

High-durability replacement bearing and seal assembly built for heavy-duty mortar and plaster mixers. Constructed from industrial-grade alloy steel combined with heat-resistant rubber, this unit delivers a 50% longer lifespan compared with standard parts. Designed as an OEM-compatible swap for Stone Mixer 655/855PM and similar models, it restores reliable performance quickly. A triple-seal structure blocks mortar leaks and dust entry to protect internal components and extend equipment life. Precision, standardized sizing permits tool-free installation for fast changeovers and reduced downtime.