ZIBOO NTN 6340 Single Row Radial Ball Bearing Open Type 200x420x80mm

NTN 6340 Open Radial Bearing

The ZIBOO NTN 6340 is a single row radial ball bearing built to the 6340 series dimensions of 200x420x80mm. Its open design allows direct lubrication access and suits applications where external seals are already present. Maintenance teams and machinery rebuilders use it to replace worn units in electric motors, gearboxes and industrial shafts. The component arrives new and ready for press fitting onto a 200mm shaft.

Sustained Load Behaviour

Under continuous rotation the open cages run cooler than sealed equivalents because fresh grease can be introduced without disassembly. The single row geometry handles combined radial and axial forces but reaches its dynamic limit earlier than double row alternatives. Builders needing higher axial capacity or integral contamination protection should select a different bearing style.