precision turntable bearing

The single-ball slewing bearing adopts compact and lightweight design, which can bear axial, radial and overturning moments at the same time. It is an efficient core transmission scheme in the fields of lifting transportation and construction machinery, and supports internal mining in enterprises.

small slewing bearing Important parameters：

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small slewing bearing Characteristics

Stable center of gravity under heavy load operation

The optimized single-row raceway design can withstand axial force and high overturning moment at the same time, ensuring that the center of gravity of the machine is stable under extreme heavy load operations, and effectively preventing equipment from shaking or rollover.

Smooth operation with low friction coefficient

The precise ball-rail contact geometry significantly reduces friction loss, reduces heat accumulation, ensures that the equipment keeps smooth and smooth during frequent start-stop and continuous rotation, and reduces the energy consumption of the power system.

Flexible gear structure configuration

Provide three configurations of internal teeth, external teeth and toothless, accurately match the transmission interface of different equipment such as excavators, eliminate the installation tolerance caused by non-standard adaptation, and greatly simplify the mechanical design process.

Compact design with high strength-to-weight ratio

The single-row structure greatly compresses the bearing volume while ensuring high load-bearing strength, saving valuable installation space, making assembly and subsequent maintenance in a narrow mechanical space easy and fast.

Long durability under heavy load conditions

Designed for high-frequency rotation scenarios, the enhanced material properties can resist fatigue wear caused by frequent operations, significantly extend the maintenance cycle of construction machinery in harsh environments, and reduce downtime costs.Stable center of gravity under heavy load operation

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small slewing bearing Detailed specifications table

No.	Type	Configuration Size					Mounting Size						Structural Size			Gear Data						Weight(KG)

	QU.QW.QN	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	315.20	406	222	408	224	60	370	260	10	17	M16	24	2	50	10	40	3	423	140	207	70	35	34
	315.20A																4	428	106	200	51	36	35
2	355.20	446	262	448	264	60	410	300	10	17	M16	24	2	50	10	40	3	462	153	246	84	40	39
	355.20A																4	468	116	240	61	41	40
3	400.20	490	307	493	310	60	455	345	12	17	M16	24	2	50	10	40	4	512	127	288	73	45	44
	400.20A																5	520	103	280	57	47	46
4	450.20	540	357	543	360	60	505	395	12	17	M16	24	2	50	10	40	4	564	140	336	85	51	50
	450.20A																5	570	113	330	67	43	52
5	500.20	590	407	593	410	60	555	445	14	17	M16	24	2	50	10	40	5	615	122	385	78	56	55
	500.20A																6	624	103	378	64	58	57
6	560.20	654	464	656	468	70	618	502	14	17	M16	30	2	60	10	50	4	680	169	440	111	78	76
	560.20A																5	685	136	435	88	79	77
7	630.20	724	534	726	538	70	688	572	16	17	M16	30	2	60	10	50	4	748	186	512	129	86	84
	630.20A																5	755	150	505	102	88	86
8	710.20	804	614	806	618	70	768	652	18	17	M16	30	2	60	10	50	5	835	166	585	118	99	97
	710.20A																6	840	139	582	98	101	97
9	800.20	894	704	896	708	70	858	742	20	17	M16	30	2	60	10	50	6	930	154	672	113	114	110
	800.20A																8	936	116	664	84	114	111
10	800.25	904	692	908	694	78	864	736	18	22	M20	36	2	68	10	58	6	942	156	654	110	143	142
	800.25A																8	952	118	648	82	147	142
11	900.25	1004	792	1008	794	78	964	836	20	22	M20	36	2	68	10	58	8	1048	130	744	94	162	163
	900.25A																10	1060	105	740	75	168	162
12	1000.25	1104	892	1108	894	78	1064	936	24	22	M20	36	2	68	10	58	8	1152	143	848	107	182	178
	1000.25A																10	1160	115	840	85	185	179
13	1000.32	1120	876	1124	880	90	1074	926	24	24	M22	40	2	80	10	70	8	1160	144	832	105	227	230
	1000.32A																10	1170	116	830	84	232	227
14	1120.32	1240	996	1244	1000	90	1194	1046	28	24	M22	40	4	80	10	70	10	1300	129	940	95	272	263
	1120.32A																12	1308	108	936	79	275	262
15	1250.32	1370	1126	1374	1130	90	1324	1176	32	24	M22	40	4	80	10	70	10	1430	142	1070	108	302	294
	1250.32A																12	1440	119	1068	90	309	290
16	1400.32	1520	1276	1524	1280	90	1474	1326	36	24	M22	40	4	80	10	70	12	1584	131	1212	102	337	333
	1400.32A																14	1596	113	1204	87	347	336
17	1250.40	1390	1108	1394	1110	102	1336	1164	32	26	M24	45	4	90	12	80	10	1450	144	1050	106	396	388
	1250.40A																12	1452	120	1044	88	392	388
18	1400.40	1540	1258	1544	1260	102	1486	1314	36	26	M24	45	4	90	12	80	12	1608	133	1188	100	448	444
	1400.40A																14	1610	114	1190	86	443	434
19	1600.40	1740	1458	1744	1460	102	1686	1514	40	26	M24	45	4	90	12	80	12	1812	150	1392	117	528	509
	1600.40A																14	1820	129	1386	100	534	511
20	1800.40	1940	1658	1944	1660	102	1886	1714	44	26	M24	45	4	90	12	80	14	2016	143	1582	114	583	576
	1800.40A																16	2032	126	1568	99	607	591
21	1600.50	1762	1434	1766	1438	124	1704	1496	40	30	M27	50	4	112	12	100	12	1824	151	1368	115	714	714
	1600.50A																14	1834	130	1358	98	727	723
22	1800.50	1964	1634	1966	1638	124	1904	1696	44	30	M27	50	4	112	12	100	14	2044	145	1568	113	845	794
	1800.50A																16	2048	127	1552	98	843	818
23	2000.50	2162	1834	2166	1842	124	2104	1896	48	30	M27	50	6	112	12	100	16	2240	139	1760	111	912	891
	2000.50A																18	2250	124	1746	98	927	913
24	2240.50	2402	2074	2406	2078	124	2344	2136	54	30	M27	50	6	112	12	100	16	2480	154	1984	125	1020	1044
	2240.50A																18	2502	138	1980	111	1078	1041
25	2500.50	2662	2334	2666	2342	124	2604	2396	60	30	M27	50	6	112	12	100	18	2754	152	2250	126	1171	1132
	2500.50A																20	2760	137	2240	113	1175	1148
26	2500.60	2696	2304	2696	2308	150	2626	2374	60	33	M30	56	6	136	14	122	18	2790	154	2214	124	1677	1621
	2500.60A																20	2800	139	2200	111	1701	1654

small slewing bearing Contrast point

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small slewing bearing Application

Crane

As the core rotating part of the crane, the slewing bearing can bear the axial force, radial force and overturning moment at the same time. It ensures that the boom can rotate smoothly in 360 degrees under complex loads, and improves the flexibility and safety of lifting operations.

5.1此处图片放什么呢？

Excavator

In an excavator, the bearing connects the upper turntable with the lower chassis. Its compact structure and strong impact resistance, can adapt to frequent rotation and harsh excavation conditions, to ensure that the slewing mechanism under high load operation still maintain efficient and accurate power transmission.

5.1此处图片放什么呢？

Mining Machinery

Aiming at the harsh environment of mines, this product provides high load capacity and excellent stability for heavy equipment such as stacker-reclaimer. Its optimized raceway design and wear-resistant materials enable it to withstand long-term heavy-duty operation and significantly reduce maintenance costs.

5.1此处图片放什么呢？

Aerial work platform

In this area,slewing ring emphasizes lightweight and cost-effective. It provides smooth and precise rotation control for the platform to ensure the smooth movement of the operator when working at high altitude, which is the key to improve the efficiency and safety of high-altitude operations.

5.1此处图片放什么呢？

Instructions for use small slewing bearing

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FAQ And Contact Us

Welcome to our Frequently Asked Questions page. We have compiled answers to common questions you may have, hoping to provide you with clear and quick solutions. If you cannot find the information you need here, please feel free to contact our customer support team.

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precision turntable bearing

small slewing bearing Important parameters：