FAG K399-AS-394-A tapered roller bearing

FAG K399-AS-394-A belongs to tapered roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for K399-AS-394-A and any equivalents.

When a machine has to handle both radial and axial forces at the same time, a tapered roller bearing is often the right choice. The FAG K399-AS-394-A is a complete assembly with a cup and cone, built to keep shafts aligned under heavy combined loads. MR Industrial Accessories LLC supplies this bearing to maintenance and purchasing teams across the United States and Latin America, and can help you confirm the correct designation before you order.

The part number K399-AS-394-A identifies a matched cup-and-cone set. In FAG designations, the K prefix signals a complete assembly, while the AS and A suffixes point to variations in contact angle, corner radius or surface treatment. The numeric blocks correspond to the cup and cone dimensions. When reading a code like this, always cross-check it against the drawing or the markings on the original bearing, because a single suffix can change how the unit fits and performs.

These bearings are common in gear reducers, axle assemblies on off-road equipment, conveyors, process pumps and drives found in cement, food and metalworking plants. Agricultural machinery such as planters and combines also relies on them, since combined loads and tough conditions call for high load capacity and good axial stiffness.

Selecting the right bearing starts with the radial and axial loads, the running speed and the lubrication method. During mounting, check raceway alignment, internal clearance and how the components are tightened. Good sealing keeps dust and particles out, and using grease or oil of the correct viscosity helps the bearing reach its expected service life. In arrangements with two bearings, preload and axial adjustment have a direct effect on performance.

Interchangeability standards allow one tapered roller bearing to be replaced by another make when the main dimensions and contact angle match. Still, part numbers are not always interchangeable: tolerances and suffixes differ between manufacturers. Before substituting a component, verify the measurements and get advice from a specialist.

To request a quote for the FAG tapered roller bearing K399-AS-394-A, send the part number or the model shown on your equipment by WhatsApp or email. The MR Industrial Accessories LLC team responds promptly with technical information and can suggest equivalents or help you choose the right bearing for your application.