美国采购需求：轴承垫片

I'm looking to source plastic nylon spherical spacers designed specifically for use with bearing balls. The required dimensions are a radius of 1.3 inches and a thickness of 0.5 inches. It's essential that these spacers maintain strong durability and have a smooth finish to ensure optimal performance in their application. Could you please provide details regarding your production capabilities for this item? Additionally, I would like to know about your pricing, minimum order quantities, lead times, and any relevant certifications. If you have samples or comparable products, sharing that info would be greatly appreciated as well. Looking forward to your prompt response so we can move forward with this potential order.