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Thrust bearings are designed to support loads parallel to the axis of rotation. Single direction thrust bearings are composed of 2 races and a complement of balls. There are two common thrust bearings.Retainer-based thrust bearings the retainer separates the balls reducing the load capacity but allowing for higher speeds.Full-complement thrust bearings which contain a full complement of balls inside the bearings that touch one another. This design is intended for maximum load capacity and limited speed.National Bearings specializes in retainer-based custom thrust bearings because they offer tremendous flexibility in design, can withstand high speeds, and provide for greater customization to meet the needs of an application. Bearing DesignBy working with National Bearings, you can be assured our design team will create custom thrust bearings that precisely fit your need. We will individually address space, load, speed and environmental issues to create bearings that will match the lifecycle of your application without wasting resources on "one size fits all" thrust bearings.

Thrust discs from National Bearings come in a variety of shapes and sizes. Thrust discs are also hardened and polished to support bearing loads. Sometimes called thrust slugs, thrust discs can be D-shaped, square, round or a custom shape to fit your application. They are often made in varying thicknesses to take up different tolerances in the same application. The parts can be color coded or marked for easy identification. Similar to thrust washers, custom sizes are available with quick turn-around, inexpensive tooling.

Thrust WashersThrust washers differ from standard washers or spacers because they must carry a bearing load and not wear out over time. To perform, thrust washers must be heat treated and then polished to achieve a hardness and surface finish that is equal to the bearing that is being supported. National Bearings maintains an extensive tooling inventory to produce hundreds of sizes and shapes including flat thrust washers, keyed thrust washers and tabbed thrust washers. If the exact size you need is not available, National can develop a custom thrust washer to meet your requirements.

radial bearings from National offer the design engineer flexibility to create the ideal bearing. Rather than compromising the design to accommodate a standard bearing, a custom radial bearing can be tailored to meet the space, load, life cycle and performance criteria required. A properly designed bearing solution can reduce energy consumption, reduce wear, decrease deterioration, and simplify product assembly