By the nature of the design of our rotary viscous dampers we conveniently have high precision, high load bearings built-in. The thin film shearing feature of our products creates a bearing which can withstand very high lateral loading . Having the bearing built-in has many obvious advantages : slimline design, minimal machining operations, built-in lubrication and piece part reduction. Any design we do for our customers incorporates proactive design principals to optimize product performance. We recommend though that in friction hinges which have critical torque tolerances that separate bearings be used to ensure a consistent torque in 360 degrees of rotation and to increase life cycles. Each application is different so come see us at http://www.mmtech.us and talk with us about your application.