Teeth Hardened OEM External Gear Turntable Bearing

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Teeth Hardened OEM External Gear Turntable Bearing

Slewing ring bearing is also called slewing ring, slewing bearing, turntable bearing, and rotary bearing.
Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing ring bearings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;
On the other hand, slewing ring bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily.

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Model:
HJW.20.625
Brand:
XUZHOU HELIN

Product Description

The heat treatment of slewing bearing track and gear, also called quenching treatment, is that the raceway of slewing bearing is subject to surface induction quenching treatment, and the quenching hardness ensures that the qualified quenching layer depth can be achieved with different track diameter, steel ball size and quenching layer depth at HRC55 ~ 62.

Due to the need of transmitting force, one ring of slewing ring is usually made with teeth. The heat treatment state of gear is generally quenched and tempered, and the hardness is 207 ~ 262hb. The tooth surface with special requirements can also be quenched according to the user's requirements. The quenching hardness is HRC55 ± 5 and can ensure sufficient depth. According to different applications, gear quenching can be divided into full tooth quenching and single tooth induction quenching. Single tooth induction quenching can be divided into tooth surface root quenching and tooth surface quenching.

External gear single row ball four-point

The single-row four-point contact ball slewing ring is composed of two seat rings and has a compact structure. The steel ball contacts the arc raceway at four points. The size of the single-row ball slewing ring is large, mainly 0.4 to 10 meters, and some up to 40 meters, which can withstand several aspects of pressure. In addition, the single-row ball slewing bearing has a low operating speed and can achieve continuous rotation. The single-row ball slewing bearing has a relatively strong bearing capacity, can bear axial force, radial force and tilting moment, and can realize continuous rotation, especially reciprocating rotation within a certain angle, which is equivalent to the so-called "swing bearing".

Mainly used for truck cranes, tower cranes, excavators, pile drivers, graders, road rollers, dynamic compactors, rock drilling machinery, engineering vehicles, radar scanning equipment, etc. to bear the overturning moment, vertical axial force, and horizontal inclination force.

Please find the following slewing bearing size information :

Note:
1. n1 is the nos of lubricating holes.Oil cup M10×1JB/T7940.1~JB/T7940.2.The Oil nipple's location can be change according to the user's application.
2. n-φcan change to tapped hole,the diameter of tapped hole is M,depth is 2M.
3. The tangential tooth force in the form is the max tooth force,the nominal tangential tooth force is 1/2 of the max one.
4. "K" is addendum reduction coefficient.

No.	External gear	Dimensions			Mounting Dimensions				Structural Dimension					Gear circumferential force					Gear circumferential force	Weight
	DL
	mm	D	d	H	D1	D2	n	mm	n1	D3	d1	H1	h	b	x	m	De	z	Quenching	kg
		mm	mm	mm	mm	mm			mm	mm	mm	mm	mm	mm		mm	mm		T 104N
1	HJW.20.625	725	525	80	685	565	18	18	3	627	623	68	12	60	1.4	5	751.9	146	5.2	100
	HJW.20.625A														1.15	6	755.5	122	6.2
2	HJW.20.720	820	620	80	780	660	18	18	3	722	718	68	12	60	1.4	6	860.3	139	6.2	120
	HJW.20.720A														1	8	861.1	104	8.3
3	HJW.30.820	940	705	95	893	749	24	20	4	822	818	83	12	70	1.4	6	980.6	159	7.2	210
	HJW.30.820A														1	10	986.2	95	12.2
4	HJW.30.880	1000	760	95	956	800	24	20	4	882	878	83	12	70	1.15	8	1047.5	127	9.7	230
	HJW.30.880A														1	10	1046.3	101	12.2
5	HJW.30.1020	1170	875	95	1120	930	24	22	4	1022	1018	80	15	70	1.4	8	1219.3	148	9.7	300
	HJW.30.1020A														1.15	10	1219.2	118	12.2
6	HJW.36.1220	1365	1075	120	1310	1130	36	24	6	1222	1218	105	15	90	1.4	10	1424.9	138	15.7	450
	HJW.36.1220A														1	12	1435.9	116	18.8
7	HJW.36.1250	1400	1090	120	1350	1150	36	26	6	1252	1248	105	15	90	-0.35	10	1443	143	15.7	520
	HJW.36.1250A														1	12	1449.6	117	18.8
8	HJW.36.1435	1595	1278	120	1535	1335	36	26	6	1437	1433	105	15	90	1.15	12	1655.5	134	18.8	610
	HJW.36.1435A														1	14	1661.2	115	21.9
9	HJW.45.1540	1720	1360	140	1660	1420	42	26	6	1543	4537	122	18	110	1.4	12	1780.8	144	23	732
	HJW.45.1540A														1.15	14	1791.1	124	26.8
10	HJW.45.1700	1875	1525	140	1815	1585	42	29	6	1703	1697	122	18	110	1.15	14	1945.4	135	26.8	844
	HJW.45.1700A														1.15	16	1950.8	118	30.5
11	HJW.45.1880	2100	1665	160	2030	1740	48	32	6	1883	1876	140	20	115	1.4	14	2189.8	152	27.8	1400
	HJW.45.1880A														1.15	18	2194.6	118	35.8
12	HJW.45.2115	2325	1900	160	2245	1980	48	32	6	2118	2112	140	20	115	1.4	16	2406.5	146	31.9	1600
	HJW.45.2115A														1.15	20	2418.4	117	40
13	HJW.45.2370	2600	2146	180	2520	2220	48	32	6	2373	2367	158	22	130	1.4	18	2707.3	146	40.7	2100
	HJW.45.2370A														1.15	22	2704.4	119	49.7
14	HJW.45.2600	2835	2365	180	2750	2450	54	36	6	2603	2597	158	22	130	1.4	18	2941.7	159	37.6	2400
	HJW.45.2600A														1.15	22	2946.9	130	45.9
15	HJW.50.2820	3085	2555	200	3000	2640	54	36	6	2823	2817	178	22	150	1.4	20	3188.4	155	52.2	3400
	HJW.50.2820A														1.15	25	3198.4	124	65.3
16	HJW.50.3120	3400	2840	200	3310	2930	54	36	6	3123	3117	178	22	150	1.4	22	3507.2	155	57.4	4000
	HJW.50.3120A														1.4	25	3509.6	136	65.3
17	HJW.50.3580	3920	3240	240	3820	3340	60	40	6	3583	3577	218	22	190	1.4	22	4036.1	179	72.7	6700
	HJW.50.3580A														1.4	25	4035.6	157	82.6
18	HJW.50.4030	4370	3690	240	4270	3790	66	40	6	4033	4027	218	22	190	1.4	22	4520.6	201	53.6	7700
	HJW.50.4030A														1.4	28	4522.4	157	68.2
19	HJW.50.4540	4860	4210	240	4760	4310	72	40	6	4543	4537	218	22	190	1.4	22	4983.1	222	72.1	8760
	HJW.50.4540A														1.4	30	4992.9	162	99.1