NSK  double row tapered roller bearings, bearings of this type use conical rollers guided by a back-face rib on the cone. which are capable of taking high radial loads and also axial loads in two directions. NSK taper roller bearings  are also available in two and four row versions to support axial loads in either direction. Optimized designs can be supplied with high strength cages and, for arduous applications, in a range of advanced special materials.

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6311DDUCM is a basic design NSK single row deep groove ball bearing, sealed type, which suffix CM: indicates electric motor clearance, and suffix DDU is unique of NSK bearings, to be precise, the suffix is for NSK deep groove ball bearings. As everyone know that there are several designs of NSK deep groove ball bearings, for example the part number 6311,for open design is 6311, for steel seals on one side is 6311-Z, on both sides is 6311-ZZ, and for rubber seals on both sides is 6311-DDU,the ...