Four-point Contact Ball Bearing

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Product Description

Four-point contact ball bearing is a kind of separable bearing, which can also be said to be a set of angular contact ball bearings that can withstand bidirectional axial loads. The inner and outer ring raceways are peach-shaped sections. When no load or pure radial load acts, the steel ball and the ferrule show four-point contact, which is the origin of this name; when only pure axial load acts.The steel ball and the ferrule become two-point contact, which can bear the axial load in both directions. Four-point contact ball bearings can also withstand moment loads, and have both the functions of single-row angular contact ball bearings and double-row angular contact ball bearings. Four-point contact ball bearings can only ensure normal work when they form two-point contact. Therefore, it is generally suitable for those occasions where there is two-point contact under pure axial load or combined load with large axial load.

单列四点接触球转盘轴承
基本代号无齿式	外形尺寸mm
基本代号无齿式	D	d	T	H	h	D1	d1	dn	n	n1
010.20.250	330	170	60	50	10	298	202	16	18	2
010.20.280	360	200	70	50	10	328	232	16	18	2
010.25.315	408	222	70	60	10	372	258	18	20	2
010.25.355	448	262	70	60	10	412	298	18	20	2
010.25.400	493	307	70	60	10	457	343	18	24	2
010.25.450	543	357	70	60	10	507	393	18	24	2
010.30.500	602	398	80	70	10	566	434	18	20	4
010.30.560	662	458	80	70	10	626	494	18	20	4
010.30.630	732	528	80	70	10	696	564	18	24
010.30.710	812	608	80	70	10	776	644	18	24
010.40.800	922	678	100	90	10	878	722	22	30
010.40.900	1022	778	100	90	10	978	822	22	30
010.40.1000	1122	878	100	90	10	1078	922	22	36
010.40.1120	1242	998	100	90	10	1198	1042	22	36

双排四点接触球转盘轴承
基本代号无齿式	外形尺寸mm
基本代号无齿式	D	d	T	H	h	D1	d1	dn	n	n1
030.30.1120	1262	978	130	120	29	1218	1022	22	36	6
030.40.1250	1426	1074	170	160	39	1374	1126	26	40	5
030.40.1400	1576	1224	170	160	39	1524	1272	26	40	5
030.40.1600	1776	1424	170	160	39	1724	1476	26	45	5
030.40.1800	1976	1624	170	160	39	1924	1676	26	45	5
030.50.2000	2215	1785	200	188	47	2149	1851	33	48	8
030.50.2240	2455	2025	200	188	47	2389	2091	33	48	8
030.50.2500	2715	2285	200	188	47	2649	2351	33	56	8
030.50.2800	3015	2585	200	224	47	2949	2651	33	56	8
030.60.3150	3428	2872	240	224	56	3338	2962	45	56	8
030.60.3550	3828	3272	240	224	56	3738	3362	45	56	8

基本代号外齿式	基本代号内齿式	齿轮参数		外齿参数		内齿参数		重量
基本代号外齿式	基本代号内齿式	b	m	da	z	da	z	kg
031.25.560	033.25.560	60	5	704	138	417	84	156
032.25.560	034.25.560	60	6	706.8	115	410.4	69	156
031.25.630	033.25.630	60	6	790.8	129	482.4	81	175
032.25.630	034.25.630	60	8	790.4	96	475.2	60	175
031.25.710	033.25.710	60	6	862.8	141	560.4	94	198
032.25.710	034.25.710	60	8	862.4	105	555.2	70	198
031.30.800	033.30.800	80	8	982.4	120	619.2	78	324
031.30.800	034.30.800	80	10	988	96	614	62	324

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