External Gear 021/022 Series Double Row Ball Slewing Bearing-Part 1

Product Item : 021.25.500,022.25.500
Category： Slewing Bearing
100% replace original part
China factory direct supply,competitive price
Competitive price
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Double row ball slewing bearing has three seat ring, the steel ball and the spacing block can bedirectly arrange into the upper and lower races, two rows of upper and lower steel balls withdifferent diameter are fitted according to the stress condition.This kind of open assembly is very convenient, for the upper and lower bear raceway arc anglesis 90°,which can bear large axial forces and tilting moment. When the radial force is greaterthan 0.1 times the axial force need to be specially designed the raceway.Double row different ball slewing bearing's axial and radial size are relatively large and solid instructure, so it is specially suitable for the medium diameter tower cranes, truck mountedcranes etc. loading and unloading machinery.

NO.	External gear DL mm	Dimensions			Mounting Dimensions						Structural Dimension			Gear data					Tooth force		Weight kg
		D mm	d mm	H mm	D1 mm	D2 mm	n	Ø mm	d3 mm	d1 mm	n1	H1 mm	h mm	b mm	x	M mm	De mm	z	Norm alizing Z10 4N	Quenching T10 4N

1	021.25.500	616	384	106	580	420	20	18	523	518	4	96	26	60	0.5	5	644	126	3.7	5.2	100
	022.25.500															6	646.8	105	4.5	6.2
2	021.25.560	676	444	106	640	480	20	18	583	578	4	96	26	60	0.5	5	704	138	3.7	5.2	115
	022.25.560															6	706.8	115	4.5	6.2
3	021.25.630	746	514	106	710	550	24	18	653	648	4	96	26	60	0.5	6	790.8	129	4.5	6.2	130
	022.25.630															8	790.4	96	6	8.3
4	021.25.710	826	594	106	790	630	24	18	733	728	4	96	26	60	0.5	6	862.8	141	4.5	6.2	140
	022.25.710															8	862.4	105	6	8.3
5	021.30.800	942	658	124	898	702	30	22	829	823	6	114	29	80	0.5	8	982.4	120	8	11.1	200
	022.30.800															10	988	96	10	14
6	021.30.900	1042	758	124	998	802	30	22	929	923	6	114	29	80	0.5	8	1086.4	133	8	11.1	250
	022.30.900															10	1088	106	10	14
7	021.30.1000	1142	858	124	1098	902	36	22	1029	1023	6	114	29	80	0.5	10	1198	117	10	14	300
	022.30.1000															12	1197.6	97	12	16.7
8	021.30.1120	1262	978	124	1218	1022	36	22	1148	1143	6	114	29	80	0.5	10	1318	129	10	14	340
	022.30.1120															12	1317.6	107	12	16.7
9	021.40.1250	1426	1074	160	1374	1126	40	26	1286	1282	5	150	39	90	0.5	12	1497.6	122	13.5	18.8	580
	022.40.1250															14	1495.2	104	15.8	21.9
10	021.40.1400	1576	1224	160	1524	1272	40	26	1436	1432	5	150	39	90	0.5	12	1641.6	134	13.5	18.8	650
	022.40.1400															14	1649.2	115	15.8	21.9

Note:
1.n1 is the nos of lubricating holes.Oi cup M10x1JB/T7940.1~JB/T7940.2.The Oil nipple'slocation can be change according to the user's application.
2..n- φ can change to tapped hole,the diameter of tapped hole is M,depth is 2M.
3. The tangential tooth force in the fomm is the max tooth force,the nominal tangentialtooth force is 1/2 of the max one.

4. “K" is addendum reduction coefficient.