1. Product Overview The 61820 2RZ thin wall deep groove ball bearing is a compact lightweight precision bearing, fitted with double-sided 2RZ composite rubber seals to keep lubricant inside and block fine dust particles. It is widely used in precision automation, textile equipment and gearboxes where limited installation space and stable radial rotation performance are required. 👉 Get a quote within 24 hours for your project 2. Technical Specifications Model 61820 2RZ Inner