Four-point Angular Contact Ball Bearing

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Product Information

Core Performance Advantages:

High rotational accuracy and smooth operation

Extremely high limiting speed

High rigidity (axial and radial)

Good combined load capacity

Low friction and low temperature rise (relative to its performance)

Application Scenarios:

Machine Tool Spindles: Electric and mechanical spindles for machining centers, lathes, milling machines, and grinding machines (the most core application area).

High-Speed Applications: Turbochargers, centrifugal compressors, high-speed pumps.

Precision Equipment: Industrial robot reducers, precision rotary tables, semiconductor manufacturing equipment, medical equipment spindles.

Gearboxes: Axial positioning bearings for high-speed gearboxes.

Inquiry	Bearing NO.		Boundary dimensions(mm)				Basic load ratings(kN)		Limiting speed(rpm)		Application point	Abutment and fillet dimensions(mm)			Value					Weight (kg)
Inquiry	New	Old	d	D	B	r 1.2min	Cr	Cor	Grease	Oil	a	da min	Da max	ra max	e	x	Y1	Y2	Y0	Refer
	QJ1072N2MA	176172K	360	540	82	5	793	1800	800	1100	315	382	518	4	0.95	0.6	0.66	1.07	0.58	70.5
	QJF1072MB	116172	360	540	82	5	793	1800	800	1100	315	382	518	4	0.95	0.6	0.66	1.07	0.58	73.5
	QJ1272N2MA		360	650	122	6	1110	2600	700	950	505	388	622	5	1.34	0.54	0.47	0.81	0.44	190
	QJ1076N2MA	176176K	380	560	82	5	819	1900	750	1000	329	402	538	4	0.95	0.6	0.66	1.07	0.58	73.5
	QJF1076MB	116176	380	560	82	5	819	1900	750	1000		402	538	4	0.95	0.6	0.66	1.07	0.58	75
	QJ1276N2MA		380	680	132	6	1170	2850	670	900	530	408	652	5	1.34	0.54	0.47	0.81	0.44	220
	QJ1080N2MA	176180K	400	600	90	5	904	2160	700	950	350	422	578	4	0.95	0.6	0.66	1.07	0.58	95.5
	QJF1080MB	116180	400	600	90	5	904	2160	700	950	350	422	578	4	0.95	0.6	0.66	1.07	0.58	98.5
	QJ1280N2MA		400	720	140	6	1300	3250	600	800	560	428	692	5	1.34	0.54	0.47	0.81	0.44	265
	QJ1984MA	176984	420	560	65	4	637	1600	700	950	343	438	542	3	0.95	0.6	0.66	1.07	0.58	51
	QJF198MB	116984	420	560	65	4	637	1600	700	950	343	438	542	3	0.95	0.6	0.66	1.07	0.58	51
	QJ1084N2MA	176184K	420	620	90	5	923	2280	670	900	364	442	598	4	0.95	0.6	0.66	1.07	0.58	99.5
	QJF1084MB	116184	420	620	90	5	923	2280	670	900	364	442	598	4	0.95	0.6	0.66	1.07	0.58	100.5
	QJ1284N2MA		420	760	150	7.5	1430	3750	560	750	590	456	724	6	1.34	0.54	0.47	0.81	0.44	315
	QJ1988N2MA	176988K	440	600	74	4	761	1900	670	900	364	458	582	3	0.95	0.6	0.66	1.07	0.58	65
	QJF1988MB	116988	440	600	74	4	761	1900	670	900	364	458	582	3	0.95	0.6	0.66	1.07	0.58	67
	QJ1088N2MA	176188K	440	650	94	6	995	2500	630	850	382	468	622	5	0.95	0.6	0.66	1.07	0.58	115
	QJF1088MB	116188	440	650	94	6	995	2500	630	850	382	468	622	5	0.95	0.6	0.66	1.07	0.58	118
	QJ1288N2MA		440	790	155	7.5	1400	3750	560	750	615	476	754	6	1.34	0.54	0.47	0.81	0.44	350
	QJ1092N2MA	176192K	460	680	100	6	1040	2650	600	800	399	488	652	5	0.95	0.6	0.66	1.07	0.58	130
	QJF1092MB	116192	460	680	100	6	1040	2650	600	800	399	488	652	5	0.95	0.6	0.66	1.07	0.58	132
	QJ1292N2MA		460	830	165	7.5	1530	4250	530	700	645	496	794	6	1.34	0.54	0.47	0.81	0.44	415
	QJ1096N2MA	176196K	480	700	100	6	1060	2800	560	750	413	508	672	5	0.95	0.6	0.66	1.07	0.58	135
	QJF1096MB	116196	480	700	100	6	1060	2800	560	750	413	508	672	5	0.95	0.6	0.66	1.07	0.58	137
	QJ1296N2MA		480	870	170	7.5	1680	4750	500	670	675	516	834	6	1.34	0.54	0.47	0.81	0.44	470
	QJF9/560X1	1168/560	560	780	60	5	530	1840	600	800	469	582	758	4	0.95	0.6	0.66	1.07	0.58	100
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