NSK Tapered Roller Bearings, Single-Row Metric Design HR30304J ,D=20
|Basic Load Ratings
DESIGN, TYPES, AND FEATURES
Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings):
Various arrangements of tapered roller bearings (excluding single-row bearings) are available.
The cages of tapered roller bearings are usually made of pressed steel.
Table 1 Design and Features of Tapered Roller Bearing Arrangements
|Design||Arrangement||Ex. Bearing Designation||Features|
|Back-to-back||HR30210JDB+KLR10||Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications.|
|KBE Type||100KBE31+L||The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications.|
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damage and problems
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