Slewing Drive Used for Truck Crane

• Customization: Available
• Step: Double-Step
• Layout: Three-Ring
• Model NO.: M7 Inch
• Installation: Horizontal
• Transmission Form: Worm
• Type: Single-Row Crossed Roller
• Size: 3inch to 25 Inch
• Structure: Ball Rolling
• Gear Type: External Gear
• Manufacturing Method: Rolling Gear
• Toothed Portion Shape: Spur Gear
• Transport Package: Wooden Box
• Specification: ISO2001: 9008
• Trademark: LYHY
• Origin: China
• HS Code: 8482109000
• Production Capacity: 20000PCS Per Year

Product Description

Slewing drive

1. Introduction of slewing drive
Slewing drive is also called slewing gear, worm gear, worm drive, rotary drive axle, rotary drive vice, slew drive, worm gear reducer and rotary drive unit, however, slewing drive is called commonly.
Slewing drive is consisted of slewing bearing, worm shaft, housing, bearing, motor and so on



Motor drive the worm shaft, the outer ring of slewing bearing will rotate, the outer ring output the torque through flange while the inner ring of slewing bearing is fixed in housing. Slewing drive can bear more axial load, radial load and tilting moment. Turntable or frame rotates at azimuth and elevations are driven by slewing drive. The Slewing Drive in the solar photovoltaic industry are introduced the general configuration DC planetary reduction motor or AC geared motors, and main configuration of the hydraulic motor as a power-driven construction machinery


2. Types

1) Types according to the structure:
Enclosed slewing drive
Open housing slewing drive
Precise slewing drive
Zero back lash slewing drive
2) Types according to the application
Light load slewing drive
Heavy load slewing drive
3) Types according to the dimensions:
3 inch, 5 inch, 7 inch, 9 inch, 12 inch, 14 inch, 17 inch, 21 inch and 25 inch.






3. Features: 
1) modularization
Thanks to the high level of integration, slewing drive makes the user needn't have to assembly accessories one by one, to a certain extent, simplify the production at the beginning of the preparation process, thus greatly increase in labor productivity. And it is space-efficient, and easy to install and maintain.
2) Security
Worm gear and worm drive has the characteristics of reverse self-locking, so it can realize the effect of reverse self-locking, that is, the worm gear can only droved by the worm driver, but can not drive the worm driver. This feature makes the slewing drive can be widely used in lifting, aerial work equipment
3) Simplifying the mainframe design
Compared with the traditional gear transmission, worm gear and worm drive can get relatively larger reduction ratio. In some cases, can make host working without reducer parts, thus reduce the purchasing cost for the customer, at the same time, also greatly reduces the host malfunction rate.
 
4. Application:
Slewing drives are widely applied in the follow area:
1) Solar tracking: solar power systems, photovoltaic power generation systems, daily solar power systems
2) Construction machinery engineering machinery like truck cranes, and man lifts, etc, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane, gantry cranes
3) Aerospace area: satellite broadcasting system(satellite receiver), aerial vehicles, small space communications
Besides, they can be also applied in the fields of small-size wind power stations, welding equipment, ship and port, mining machinery, medical technology, automation equipment, CSP tracking. 

Heavy-Load Slewing Drive
Model	Rated output torque /KN-m	Tilting Moment torque /KN-m	Load /KN				Gear ratio	Self-locking gears	Boundary dimensions (mm)																	Weight (KG)
			Static load rating, axial	Static load rating,radial	Dynamic load rating, axial	Dynamic load rating,radial			L	L1	L2	L3	H2	H3	H4	ΦD	ΦD1	ΦD2	ΦD3	ΦD4	ΦD5	n1-Y	n1-X	H	H1
3"	0.25	0.5	30	16.6	9.6	8.4	62:1	yes	346	153	114	80		15	60.5	125	100		100		126	6-M10	6-M10	190	109	12
5"	0.37	0.8	76	22.6	13.8	11.8	62:1	yes	361	168	128	93.7	24.6	7	38	161	135	103.5	70	50	120	6-M10	7-M10	219	79	18
7"	1.3	13.5	133	53	32	28	73:1	yes	398	182	166	132.7	23.4	4.3	42.5	237.5	203.2	163	120.6	98	145	8-M12	10-M12	295	81	23
9"	9.2	33.9	338	135	81	71	61:1	yes	546	314	239	174.1	29	4.4	54.5	316	270	222.5	175	145	204	16-M16	15-M16	411	108	50
12"	11.7	54.3	475	190	114	100	78:1	yes	556	324	285	220	27	4.4	58.5	401.5	358	308.5	259	229	289	18-M16	19-M16	500	110.5	60
14"	12.7	67.8	555	222	133	117	85:1	yes	547	330	303	238	28	3.5	59	435.5	390	342.5	295	265	325	18-M16	23-M16	530	110	73
17"	18.5	135.6	975	390	235	205	102:1	yes	555	338	340	275.3	26	4.6	66	522	479.4	425.5	365.1	324	406	20-M16	20-M16	615	126	110
21"	29	203	1598	640	385	335	125:1	yes	678	461	398	333	3.3	4.5	76	616	584.2	525.5	466.7	431.8	532	36-M20	35-M20	732	136.5	158
25"	34	271	2360	945	590	470	150:1	yes	678	461	467	401.8	6.2	4.5	78.2	744	675	820	585	512	628.5	36-M20	35-M20	863	133.2	230
Light-Load Slewing Drive
Model	Rated output torque /KN-m	Tilting Moment torque /KN-m	Load /KN				Gear ratio	Self-locking gears	Boundary dimensions (mm)																	Weight (KG)
			Static load rating, axial	Static load rating,radial	Dynamic load rating, axial	Dynamic load rating,radial			L	L1	L2	L3	H2	H3	H4	ΦD	ΦD1	ΦD2	ΦD3	ΦD4	ΦD5	n1-Y	n1-X	H	H1
3"	0.2	0.5	30	16.6	9.6	8.4	62:1	yes	346	153	114	80		15	60.5	125	100		100		126	6-M10	6-M10	190	109	12
5"	0.3	0.8	76	22.6	13.8	11.8	62:1	yes	361	168	128	93.7	24.6	7	38	161	135	103.5	70	50	120	6-M10	7-M10	219	79	18
7"	1	13.5	133	53	32	28	73:1	yes	398	182	166	132.7	23.4	4.3	42.5	237.5	203.2	163	120.6	98	145	8-M12	10-M12	295	81	23
9"	7.3	33.9	338	135	81	71	61:1	yes	546	314	239	174.1	29	4.4	54.5	316	270	222.5	175	145	204	16-M16	15-M16	411	108	50
12"	9.2	54.3	475	190	114	100	78:1	yes	556	324	285	220	27	4.4	58.5	401.5	358	308.5	259	229	289	18-M16	19-M16	500	110.5	60
14"	10.5	67.8	555	222	133	117	85:1	yes	547	330	303	238	28	3.5	59	435.5	390	342.5	295	265	325	18-M16	23-M16	530	110	73
17"	14.5	135.6	975	390	235	205	102:1	yes	555	338	340	275.3	26	4.6	66	522	479.4	425.5	365.1	324	406	20-M16	20-M16	615	126	110
21"	20.2	203	1598	640	385	335	125:1	yes	678	461	398	333	3.3	4.5	76	616	584.2	525.5	466.7	431.8	532	36-M20	35-M20	732	136.5	158
25"	22.5	271	2360	945	590	470	150:1	Yes	678	461	467	401.8	6.2	4.5	78.2	744	675	620	585	512	628.5	36-M20	35-M20	863	133.2	230