Four-point contact ball bearings

Inner Diameter: 150-480mm
Outer Diameter: 225-870mm
Weight: 5.1-470kg
Type: QJ, QJF

Features
Technical data

Four point contact ball bearings are separable bearings, in which, type QJ0000 has two piece inner ring, type QJF0000 has two piece outer rings, their contact angle are both 35°. When carrying pure radial loads, each ball cotacts with rings ar four point, and they are two point contact under pure axial loads. The bearings can carry axial loads in two directions and certain moment loads, and have the features of single row and double row angular contact ball bearings. They only can work normally in high speed when two point contact is formed.

Brass or aluminium soild cages are exactly suitbale for four point contact ball bearings.

Inner Diameter: 150-480mm

Outer Diameter: 225-870mm

Weight: 5.1-470kg

Type: QJ, QJF

Boundary dimensions				Basic load ratings		Designations		Mass	Installation dimersion			Limiting speeds
mm				kN		Current	Original	kg	mm			r/min
d	D	B	rmin	Cr	Cor	Current	Original	kg	damin	Damax	ramax	Grease	Oil
120	180	28	2	148	196	QJ1024		2.65	130	170	2	2600	3600
	215	40	2.1	286	340	QJ224		6.95	132	203	2	2200	3200
	260	55	3	390	490	QJ324		16	148	292	3	1900	2800
130	200	33	3	182	240	QJ1026		4.05	140	190	2	2200	3200
	230	40	3	296	365	QJ226		7.75	144	216	2.5	1900	2800
	280	58	4	423	560	QJ326		19.5	148	262	3	1800	2600
140	210	22	1.1	121	163	605647A		2.6	147	203	1	2000	3000
	210	33	2	190	265	QJ1028		4.3	150	200	2	2000	3000
	250	42	3	325	440	QJ228		9.85	154	236	2	1800	2600
	300	62	4	468	640	QJ328		24	158	282	3	1700	2400
150	225	35	2.1	225	275	QJ1030	176130	5.1	162	213	2	1900	2800
	270	45	3	302	372	QJ230	176230	12.5	164	256	2.5	1700	2400
	320	65	4	494	710	QJ330	176330	29	168	302	2	1600	2200
160	240	38	2.1	260	318	QJ1032	176132	6.3	172	228	2	1800	2600
	290	48	3	352	455	QJ232	176232	14.6	174	276	2.5	1600	2200
	340	68	4	585	865	QJ332	176332	31	178	388	3	1500	2000
170	260	42	2.1	226	350	QJ1034	176134	8.5	182	248	2	1700	2400
	265	42	2.1	226	350	QJF1034X1	176734X1	9	182	248	2	1300	1600
	310	52	4	358	480	QJ234	176234	19.5	188	292	3	1600	2200
	360	72	4	618	965	QJ334	176334	41.5	188	342	3	1400	1900
180	280	46	2.1	335	408	QJ1036	176136	11	192	268	2	1600	2200
	320	52	4	392	545	QJ236	176236	20.5	198	3020	3	1500	2000
	380	75		637	1020	QJ336		47.5	198	362	3	1300	1800

Boundary dimensions				Basic load ratings		Designations		Mass	Installation dimersion			Limiting speeds
mm				kN		Current	Original	kg	mm			r/min
d	D	B	rmin	Cr	Cor	Current	Original	kg	damin	Damax	ramax	Grease	Oil
190	290	46	2.1	348	430	QJ1038	179138	11.5	202	278	2	1600	2200
	340	55	4	455	735	QJ238	176238	39	208	322	3	1400	2200
200	310	51	2.1	380	498	QJ1040	176140	14.9	212	298	2	1500	2000
	360	58	4	507	850	QJ240	176240	27	218	342	3	1300	1800
	360	70	4	520	865	QJF1240	-	32.5	218	342	3	1300	1800
220	340	56	3	448	622	QJ1044	176144	19.6	234	326	2.5	1300	1800
	400	78	4	592	1020	QJ1244		45.5	238	382	3	1100	1600
	460	88	5	780	1400	QJ344		78	242	438	4	1000	1500
240	360	56	3	458	655	QJ1048	176148	21	254	346	2.5	1200	1700
	440	85	4	663	1220	QJ1248		61	258	422	3	1000	1500
260	360	46	2.1	390	710	QJ1952		15	271	349	2	1100	1600
	400	65	4	510	765	QJ1052	176152	31.3	278	382	3	1000	1500
280	420	65	4	540	835	QJ1056	176156	33.2	298	402	3	950	1400
	500	90	5	728	1460	QJ1256		82	302	478	4	950	1400
300	460	74	4	630	1040	QJF1060	116160	47	318	442	3	900	1300
	540	98	5	832	1760	QJ1260		105	322	518	4	850	1200
320	480	74	4	650	1090	QJ1064	176164	49.5	338	462	3	850	1200
	580	105	5	923	2040	QJ1264		130	342	558	4	800	1100
340	520	82	5	725	1270	QJ1068	176168	67.5	362	498	4	800	1100
	620	118	6	1060	2450	QJ1268		165	368	592	5	750	1000
360	540	82	5	768	1380	QJ1072	176172	69.2	382	518	4	800	1100
	650	122	6	999	2340	QJ 1272	1176272	190	388	622	5	700	950

Boundary dimensions				Basic load ratings		Designations		Mass	Installation dimersion			Limiting speeds
mm				kN		Current	Original	kg	mm			r/min
d	D	B	rmin	Cr	Cor	Current	Original	kg	damin	Damax	ramax	Grease	Oil
380	560	82	5	737	1710	QJ1076	176176	73.5	402	538	4	750	1000
	680	132	6	1053	2565	QJ1276	1176276	220	408	652	5	670	900
400	600	90	5	814	1944	QJ1080	176180	95.5	422	578	4	700	950
	720	140	6	1170	2925	QJ1280	1176280	265	428	692	5	600	800
420	560	65	4	573	1440	QJ1984	1176984	51	438	542	3	700	950
	620	90	5	831	2052	QJ1084	176184	99.5	442	598	4	670	900
	760	150	7.5	1287	3375	QJ1284	1176284	315	456	724	6	560	750
440	600	74	4	685	1710	QJ1988	1176988	65	458	582	3	670	900
	650	94	6	896	2250	QJ1088	176188	115	468	622	5	630	850
	790	155	7.5	1260	3375	QJ1288	1176288	350	476	754	6	560	750
460	680	100	6	936	2385	QJ1092	176192	130	488	652	5	600	800
	830	165	7.5	1377	3825	QJ1292	1176292	415	496	794	6	530	700
480	700	100	6	954	2520	QJ1096	176196	135	508	672	5	560	750
	870	170	7.5	1512	4275	QJ1296	1176296	470	516	834	6	500	670

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Application

Our company can produce more than 3000 kinds of standard and nonstandard rolling bearings in 9 different categories. Our company products are commonly used in metallurgy, mining, machinery, petroleum industry, electricity etc.

Ball Bearings

Four-point contact ball bearings

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