Xuzhou Xinda Slewing Bearing Co.,Ltd

Double-Row Ball Slewing Bearing (Standard 02 Series)

CHARACTERISTIC OF STRUCTURE,PERFORMANCE AND APPLICATION
The double-row Ball slewing bearing has three seat-rings.The steel balls and the spacers may be directly arranged into the upper and lower races.Two rows of steel balls with different diameters are fitted according to the force bom.
Such open mode fitting features extraordinary convenience.The load angles of both upper and lower races are 90��,which enable the bearing to bear large axial force and the tipping moment.
When the radial force is larger than 1/10 of the axail force the races should be newly designed.
As the axle and the dimension of the double-row ball slewing bearing are rather large,the bearing construction is sturdy ,hence it is especially suitable for tower cranes which require working radius over medium range,mobile cranes and loading and unloading machines.

Load Diagram Number	Basic Type			Configuration Size			Mounting Size				Structural Size			Gear Data			Ext Gear		Int Gear		Tangential Tooth Load		Refe rence weight kg
	Toothless D L m m	Ext Toothing D L m m	Int Toothing D L m m	D mm	d mm	H mm	D1 mm	D2 mm	n	Ø mm	n1 mm	H1 mm	h mm	b mm	x	m mm	D e mm	z	D e mm	z	Normalizing Z 10⁴N	Tempering T 10⁴N
1	020.25.500	021.25.500	023.25.500	616	384	106	580	420	20	18	4	96	26	60	0.5	5	644	126	257	72	3.7	5.2	100
		022.25.500	024.25.500													6	646.8	105	350.4	59	4.5	6.2
2	020.25.560	021.25.560	023.25.560	676	444	106	640	480	20	18	4	96	26	60	0.5	5	704	138	417	84	3.7	5.2	115
		022.25.560	024.25.560													6	706.8	115	410.4	69	4.5	6.2
3	020.25.630	021.25.630	023.25.630	746	514	106	710	550	24	18	4	96	26	60	0.5	6	790.8	129	482.4	81	4.5	6.2	130
		022.25.630	024.25.630													8	790.4	96	475.2	60	6	8.3
4	020.25.710	021.25.710	023.25.710	826	594	106	790	630	24	18	4	96	26	60	0.5	6	862.8	141	560.4	94	4.5	6.2	140
		022.25.710	024.25.710													8	862.4	105	555.2	70	6	8.3
5	020.30.800	021.30.800	023.30.800	942	658	124	898	702	30	22	6	114	29	80	0.5	8	982.4	120	619.2	78	8	11.1	200
		022.30.800	024.30.800													10	988	96	614	62	10	14
6	020.30.900	021.30.900	023.30.900	1042	758	124	998	802	30	22	6	114	29	80	0.5	8	1086.4	133	715.2	90	8	11.1	250
		022.30.900	024.30.900													10	1088	106	714	72	10	14
7	020.30.1000	021.30.1000	023.30.1000	1142	858	124	1098	902	36	22	6	114	29	80	0.5	10	1198	117	814	82	10	14	300
		022.30.1000	024.30.1000													12	1197.6	97	796.8	67	12	16.7
8	020.30.1120	021.30.1120	023.30.1120	1262	978	124	1218	1022	36	22	6	114	29	80	0.5	10	1318	129	924	93	10	14	340
		022.30.1120	024.30.1120													12	1317.6	107	916.8	77	12	16.7
9	020.40.1250	021.40.1250	023.40.1250	1426	1074	160	1374	1126	40	26	5	150	39	90	0.5	12	1497.6	122	1012.8	85	13.5	18.8	580
		022.40.1250	024.40.1250													14	1495.2	104	1013.6	73	15.8	21.9
10	020.40.1400	021.40.1400	023.40.1400	1576	1224	160	1524	1272	40	26	5	150	39	90	0.5	12	1641.6	134	1156.8	97	13.5	18.8	650
		022.40.1400	024.40.1400													14	1649.2	115	1153.6	83	15.8	21.9
11	020.40.1600	021.40.1600	023.40.1600	1776	1424	160	1724	1476	45	26	5	150	39	90	0.5	14	1845.2	129	1349.6	97	15.8	21.9	750
		022.40.1600	024.40.1600													16	1852.8	113	1350.4	85	18.1	25
12	020.40.1800	021.40.1800	023.40.1800	1976	1624	160	1924	1676	45	26	5	150	39	90	0.5	14	2055.2	144	1545.6	111	15.8	21.9	820
		022.40.1800	024.40.1800													16	2060.8	126	1542.4	97	18.1	25
13	020.50.2000	021.50.2000	023.50.2000	2215	1785	190	2149	1851	48	33	8	178	47	120	0.5	16	2300.8	141	1702.4	107	24.1	33.3	1150
		022.50.2000	024.50.2000													18	2300.4	125	1699.2	95	27.1	37.5
14	020.50.2240	021.50.2240	023.50.2240	2455	2025	190	2389	2091	48	33	8	178	47	120	0.5	16	2540.8	156	1942.4	122	24.1	33.3	1500
		022.50.2240	024.50.2240													18	2552.4	139	1933.2	108	27.1	37.5
15	020.50.2500	021.50.2500	023.50.2500	2715	2285	190	2649	2351	56	33	8	178	47	120	0.5	18	2804.4	153	2203.2	123	27.1	37.5	1700
		022.50.2500	024.50.2500													20	2816	138	2188	110	30.1	41.8
16	020.50.2800	021.50.2800	023.50.2800	3015	2585	190	2949	2651	56	33	8	178	47	120	0.5	18	3110.4	170	2491.2	139	27.1	37.5	1900
		022.50.2800	024.50.2800													20	3116	153	2488	125	30.1	41.8
17	020.60.3150	021.60.3150	023.60.3150	3428	2872	226	3338	2962	56	45	8	214	56	150	0.5	20	3536	174	2768	139	37.7	52.2	3300
		022.60.3150	024.60.3150													22	3537.6	158	2758.8	126	41.5	57.4
18	020.60.3550	021.60.3550	023.60.3550	3828	3272	226	3738	3362	56	45	8	214	56	150	0.5	20	3936	194	3168	159	37.7	52.2	3700
		022.60.3550	024.60.3550													22	3933.6	176	3176.8	145	41.5	57.4
19	020.60.4000	021.60.4000	023.60.4000	4278	3722	226	4188	3812	60	45	10	214	56	150	0.5	22	4395.6	197	3616.8	165	41.5	57.4	4200
		022.60.4000	024.60.4000													25	4395	173	3610	145	47.1	65.2
20	020.60.4500	021.60.4500	023.60.4500	4778	4222	226	4688	4312	60	45	10	214	56	150	0.5	22	4879.6	219	4122.8	188	41.5	57.4	4700
		022.60.4500	024.60.4500													25	4895	193	4110	165	47.1	65.2

Note:

1.nl-number of lubricating holes,evenly distributed,lubricating nipple M10*1 JB/T7940.1-JB/T7940.2.

2.Mounting hole n-��,may be replaced with screw hole,tooth width b may be taken as H-h.

3.Gear force of periphery given in the table is its maximum value,nominal force of periphery is taken 1/2 of the given value.

4.The trim top coefficient of outer and inner tooth 0.1 and 0.2 respectively.