Detailed Technical Information for Slewing Drives (L21 Inch) Used for Rock Drilling Machine

• Customization: Available
• Feature: Cold-Resistant, Corrosion-Resistant
• Step: Single-Step
• Model NO.: L21 inch
• Openness: Closed
• Installation: Vertical
• Transmission Form: Worm
• Type: Single-Row Ball
• Size: 21 Inch
• Warranty Period: 1 Year
• Production Experience: Since Year 1993
• Motor: with Electric Motor, Hydraulic Motor
• Rolling Body: Ball Bearings
• Separated: Unseparated
• The Number of Rows: Single
• Outer Dimension: Extra Large (440mm)
• Material: Bearing Steel
• Load Direction: Axial, Radial and Tilting Moment
• Transport Package: Wooden Box
• Specification: SGS
• Trademark: LYHY
• Origin: Luoyang, China
• HS Code: 848210900
• Production Capacity: 100PCS/Month

Product Description

Type: L21 inch slewing drive

Feature:
1. Tooth type: Helical tooth
2. Light-load slewing drive
3. Drive type: Motor drive
4. Diameter of rotary center: 525mm
Other technical data:
Module: 5
Number of worm shafts: 1
Gear Ratio: 125: 1
Efficiency: 40%
Self-locking gears: YES
Weight: 150kg

Detailed technical data please kindly contact us directly...



Slewing drives introduction
1. Introduction of LYHY 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. At present the majority of such devices are caller Slewing Drive.
LYHY Slewing Drive movement can reduce power consumption, since the security role. In addition to the field of use in the daily solar power systems are usually used for Special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc...The Slewing Drive in the solar photovoltaic industry, the general configuration DC planetary reduction motor or AC geared motors; Main configuration of the hydraulic motor as a power-driven construction machinery
LYHY Slewing Drive principle of the large transmission ratio of the deceleration device to transmit motion and power between the two axes staggered in space. The Slewing Drive transmission is usually the case of the main components of the worm and wheel bearings, shell, and the power source
As the core component of turntable bearings, can withstand the axial load, radial load and overturning moment.



2. Structure
Slewing drive can be divided into two different structures as per different applications.
Light load slewing drive
Heavy load slewing drive
The dimensions of slewing drives include 3 inch, 5 inch, 7 inch, 9 inch, 12 inch, 14 inch, 17 inch, 21 inch and 25 inch.



3. Features:
Slewing drive is a special bearing. And a slewing drive usually consist 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.
LYHY Slewing Drive and rotary products, compared with the ease of installation, ease of maintenance, Installation space savings advantages to a greater extent.



4. Application:
Slewing drives are widely used in aerospace area, solar power systems, wind turbines, satellite broadcasting system, and engineering machinery like truck cranes, and man lifts, etc. Recently years, it has been prosperously used in photovoltaic power generation systems, special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc.

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		14.5	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
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		14.5	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