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Four-point contact ball bearings

Four point contact ball bearings are radial single row angular contact ball bearings with raceways designed to support axial loads in both directions. For a given axial load, a limited radial load (load ratio) can also be supported. The bearing is separable, i.e. the outer ring with ball and cage assembly can be installed separately from the two inner ring halves.

Basic dimensions			Basic load rating		Speed ratings		Mass	Model
			dynamic	static	Reference speed	Limiting speed		Bearing No.
d [mm]	D [mm]	B [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]
440	600	74	684.9	1710		1350	64	QJ 1988 N2MA Bearing
440	650	94	895.5	2250		1260	114	QJ 1088 N2MA Bearing
440	790	155	1260	3375		1080	350	QJ 1288 N2MA Bearing
460	680	100	936	2385		1170	130	QJ 1092 N2MA Bearing
460	830	165	1377	3825		990	415	QJ 1292 N2MA Bearing
480	700	100	954	2520		1170	135	QJ 1096 N2MA Bearing
480	870	170	1512	4275		990	470	QJ 1296 N2MA Bearing