350°C High Temperature Ball Bearing 6220-2ZVA208 Deep Groove Ball Bearing with Graphite Segmented Cage and Manganese Phosphated Surface

The 6220-2ZVA208 High-Temperature Deep Groove Ball Bearing is engineered to deliver reliable rotating performance in extreme thermal environments reaching up to 350 °C (660 °F). Featuring an advanced segmented graphite cage and a full manganese phosphated coating on its high-temperature steel rings and balls, this bearing eliminates the need for conventional liquid lubricants. It is widely used in heavy industrial kilns, metallurgical machinery, and thermal processing lines where grease or oil would instantly carbonize or burn away.

• Ultimate Temperature Resistance: Specialized high-temperature steel allows stable continuous operation up to 350 °C without dimensional distortion.
• Innovative Graphite Cage Self-Lubrication: Segmented graphite cage elements continuously release microscopic lubricating films onto the raceways during rotation, ensuring zero-grease maintenance.
• Manganese Phosphated Anti-Seize Surface: Full surface treatment provides superior corrosion resistance, minimizes friction, and completely prevents metal-to-metal seizing under severe heat.
• Optimized Internal Radial Clearance: Manufactured with a multiple-times multiplied radial clearance (C4/C5 equivalent expansion design) to prevent thermal binding as the components expand.
• Dual Integral Metal Shields (-2Z): Equipped with high-grade non-contact steel shields to prevent the ingress of abrasive dust and scalings while retaining graphite lubrication particles.