Cylindrical bore	Tapered bore	Sealed
	K Taper 1 : 12	2RS
120, 130 1200, 1300 2200, 2300 (11200,11300 extended inner ring type)		2200 2RS 2300 2RS

Spherical outer ring raceway allows self-alignment, accommodating shaft or housing deflection and misaligned mounting conditions. Tapered bore design can be mounted readily using an adapter.