9X15mm 440c Stainless Steel Spherical End High-Hardness Needle Roller for Bearing

9X15mm 440c Stainless Steel Spherical End High-Hardness Needle Roller for Bearing. High Hardness Material: 440C stainless steel with HRC58-63 hardness for heavy load resistance. Low Noise Operation: Precision finishing ensures silent movement even under high loads. Wear Resistance: Maintains size and shape over time in extreme temperatures. Low Friction Coefficient: Enables smooth, efficient movement without excessive heat generation. Customization Support: Full customization, minor customization, and design-based options available. Quality Certification: Manufactured according to DIN5402 and ISO3096 standards. Fast Delivery: Off-season lead time within 15 workdays; peak season 1-3 months.