Four Point Contact Ball Slewing Bearing

Produced by: Ningguo Swbtec Industry Co.,Ltd

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Due to Four point contact swinging ball bearingshas the widest application, it is our main product and account for 80% of the total product, In order to make sure the contact angle is within the right point, we constantly inspect the raceway grinding machine and inspect the contact angle with a special tool which is our practical patent, this is also why our delivery slewing bearing has longer life than other peers.

Features and Benefits of SWBTEC's Four Point Contact Ball Slewing Bearing

The size of the four point contact ball bearing slewingringsize usually is large with diameter 250~1800mm meters Therefore, bearingfor swing setoften plays the role of several sets of ordinary rolling bearings, that is why it become more and more popular in modern industry

The rotate speed of the slewing bearing is very low, usually below 10 rpm. In addition, in most cases, the slewing bearing does not rotate continuously, but only rotates back and forth within a certain angle, which is equivalent to the so-called "swing bearing".

Usually, the slewing bearing is equipped with a gear ring for rotary drive and seal for dust prevention.

Advantages Of Single Row Ball Slewing Bearing:

Four Point Contact Ball Slewing Bearing Specifications

	Type	Configuration Size					Mounting Size						Structural Size			Gear Data						Weight(KG)
																									QU(D=Internal gear D,d=External gear d)	H	D1	D2	n	Through Hole	Screw Hole	n1 (Grease Hole Qty)	H1	h	B	module	X=-0.5(External Gear Data)	X=+0.5(Internal Gear Data)	External Gear Type	Internal Gear Type
	External Gear		Internal Gear
					A Type	B,C,D Type
	Ball Size	D	d	D	d	φ	M	L (Thread Length)	Da	Z	da	Z
	1		406	222	408	224	60	370	260	10	17	M16	24	2	50	10	40	3	423	140	207	70	35	34
		4																428	106	200	51	36	35
2		446	262	448	264	60	410	300	10	17	M16	24	2	50	10	40	3	462	153	246	84	40	39
																	4	468	116	240	61	41	40
3		490	307	493	310	60	455	345	12	17	M16	24	2	50	10	40	4	512	127	288	73	45	44
																	5	520	103	280	57	47	46
4		540	357	543	360	60	505	395	12	17	M16	24	2	50	10	40	4	564	140	336	85	51	50
																	5	570	113	330	67	43	52
5		590	407	593	410	60	555	445	14	17	M16	24	2	50	10	40	5	615	122	385	78	56	55
																	6	624	103	378	64	58	57
6		654	464	656	468	70	618	502	14	17	M16	30	2	60	10	50	4	680	169	440	111	78	76
																	5	685	136	435	88	79	77
7		724	534	726	538	70	688	572	16	17	M16	30	2	60	10	50	4	748	186	512	129	86	84
																	5	755	150	505	102	88	86
8		804	614	806	618	70	768	652	18	17	M16	30	2	60	10	50	5	835	166	585	118	99	97
																	6	840	139	582	98	101	97
9		894	704	896	708	70	858	742	20	17	M16	30	2	60	10	50	6	930	154	672	113	114	110
																	8	936	116	664	84	114	111
10		904	692	908	694	78	864	736	18	22	M20	36	2	68	10	58	6	942	156	654	110	143	142
																	8	952	118	648	82	147	142
11		1004	792	1008	794	78	964	836	20	22	M20	36	2	68	10	58	8	1048	130	744	94	162	163
																	10	1060	105	740	75	168	162
12		1104	892	1108	894	78	1064	936	24	22	M20	36	2	68	10	58	8	1152	143	848	107	182	178
																	10	1160	115	840	85	185	179
13		1120	876	1124	880	90	1074	926	24	24	M22	40	2	80	10	70	8	1160	144	832	105	227	230
																	10	1170	116	830	84	232	227
14		1240	996	1244	1000	90	1194	1046	28	24	M22	40	4	80	10	70	10	1300	129	940	95	272	263
																	12	1308	108	936	79	275	262
15		1370	1126	1374	1130	90	1324	1176	32	24	M22	40	4	80	10	70	10	1430	142	1070	108	302	294
																	12	1440	119	1068	90	309	290
16		1520	1276	1524	1280	90	1474	1326	36	24	M22	40	4	80	10	70	12	1584	131	1212	102	337	333
																	14	1596	113	1204	87	347	336
17		1390	1108	1394	1110	102	1336	1164	32	26	M24	45	4	90	12	80	10	1450	144	1050	106	396	388
																	12	1452	120	1044	88	392	388
18		1540	1258	1544	1260	102	1486	1314	36	26	M24	45	4	90	12	80	12	1608	133	1188	100	448	444
																	14	1610	114	1190	86	443	434
19		1740	1458	1744	1460	102	1686	1514	40	26	M24	45	4	90	12	80	12	1812	150	1392	117	528	509
																	14	1820	129	1386	100	534	511
20		1940	1658	1944	1660	102	1886	1714	44	26	M24	45	4	90	12	80	14	2016	143	1582	114	583	576
																	16	2032	126	1568	99	607	591
21		1762	1434	1766	1438	124	1704	1496	40	30	M27	50	4	112	12	100	12	1824	151	1368	115	714	714
																	14	1834	130	1358	98	727	723
22		1964	1634	1966	1638	124	1904	1696	44	30	M27	50	4	112	12	100	14	2044	145	1568	113	845	794
																	16	2048	127	1552	98	843	818
23		2162	1834	2166	1842	124	2104	1896	48	30	M27	50	6	112	12	100	16	2240	139	1760	111	912	891
																	18	2250	124	1746	98	927	913
24		2402	2074	2406	2078	124	2344	2136	54	30	M27	50	6	112	12	100	16	2480	154	1984	125	1020	1044
																	18	2502	138	1980	111	1078	1041
25		2662	2334	2666	2342	124	2604	2396	60	30	M27	50	6	112	12	100	18	2754	152	2250	126	1171	1132
																	20	2760	137	2240	113	1175	1148
26		2696	2304	2696	2308	150	2626	2374	60	33	M30	56	6	136	14	122	18	2790	154	2214	124	1677	1621
																	20	2800	139	2200	111	1701	1654

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