NN3028KR P4 High Precision Cylindrical Roller Bearing 140x210x53 mm.

manufactured according to tolerance class P5
high dimensional accuracy
suitable for very high radial loads
suitable for very high speeds and high running accuracy
it has a tapered bore (1:12) for mounting using an adapter sleeve
equipped with a lubrication groove and three bores on the outer ring
dismountable
can be used as a floating bearing