Solid drawn cup needle roller bearings are a type of bearing with a small cross-sectional height and high load-carrying capacity. Due to the high hardness of the outer ring, it can be applied to even lightweight alloy bearing seats.
These bearings provide products in both metric and imperial series, with three types of structures in each series: a cage type, a full-needle type, and a sealed type.
In addition, solid drawn cup needle roller bearings are divided into two types: NA with an inner ring and RNA without an inner ring, with the latter using the shaft as the rolling surface to reduce its size.
The solid ferrule needle roller bearing is compact in structure and small in radial size, and can withstand larger radial loads. In addition to the full complement of needle roller bearings, the other uses of a high-rigidity needle retainer is correctly guides the needle roller parallel to the axis. Accurate machining of the shaft will improve the accuracy of the entire bearing.In general case, the mounting of the needle roller bearings needs compact combination so that the thin wall bush can be well supported. The heavier the load is, the selection combination is bigger, especially when impact load should be considered. Further more, it is necessary to consider the combination of materials and temperature differences.
Entity bushed needle roller bearing and others needle bearings, such as drawn cup needle roller bearings, thrust needle bearings and retainer assembly bearings are suitable for the applications of smaller space and high capacity, widely use in the automotive parts, the drivetrain system of mechanical engineering, the steering system and the connecting rod.