Design and featured of Combinations of NSK tapered roller bearings

Figure	Arrangement	Examples of Bearing number	Features
	Back-to-back	HR30219JDB+KLR10	Two standard bearings are combined. The NSK bearing clearances are adjusted by cone spacers or cup spacers. The cones and cups and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled referring to the matching symbols.
	Face-to-face	HR30210JDF+KR
	KBE type	100KBE31+L	The KBE type is a back-to-back arrangement of bearings with the cup and spacer integrated, and the KH type is a face-to-face arrangement in which the cones are integrated. Since the NSK bearing clearance is adjusted using spacers, it is necessary for components to have the same serial number for assembly with reference to matching symbols.
	KH type	110KH31+K