INA, a brand within the Schaeffler Group, offers a range of slewing ring bearings designed for various applications that require rotational movement and support of heavy loads. Slewing ring bearings, also known as turntable bearings or slewing bearings, consist of an inner and outer ring with rolling elements (balls or rollers) that allow smooth rotation under radial, axial, and moment loads. Here are some common types of INA slewing ring bearings:
Four-Point Contact Ball Slewing Bearings: These slewing ring bearings feature four-point contact between the balls and the raceways, allowing them to accommodate axial, radial, and moment loads simultaneously. They are suitable for applications such as cranes, excavators, wind turbines, and turntables.
Crossed Roller Slewing Bearings: Crossed roller slewing bearings use cylindrical rollers arranged in a crossed pattern between inner and outer rings. They offer high rigidity, accuracy, and load-carrying capacity, making them ideal for precision rotary tables, robotics, and machine tools.
Three-Row Roller Slewing Bearings: Three-row roller slewing bearings feature three rows of cylindrical rollers arranged in a staggered configuration between inner and outer rings. They provide high load capacity and stiffness and are suitable for applications such as heavy-duty cranes, excavators, and stacker reclaimers.
Single-Row Ball Slewing Bearings: Single-row ball slewing bearings consist of a single row of balls and are designed for applications with moderate loads and low friction requirements. They are commonly used in light-duty applications such as small cranes, antenna systems, and solar tracking systems.
Double-Row Ball Slewing Bearings: Double-row ball slewing bearings feature two rows of balls and are designed to accommodate higher loads and provide increased stiffness compared to single-row designs. They are used in applications such as offshore cranes, ship loaders, and forestry equipment.
Special Design Slewing Bearings: INA offers custom-designed slewing ring bearings to meet specific customer requirements and application challenges. These special design bearings may involve unique dimensions, load capacities, sealing arrangements, and mounting configurations tailored to the customer's needs.
INA slewing ring bearings are known for their high quality, reliability, and performance in demanding applications across various industries such as construction, mining, renewable energy, and industrial machinery. They are engineered to provide smooth and precise rotation under heavy loads, making them essential components in a wide range of equipment and machinery.
