Heavy Load Slewing Drive for Forestry Machinery SD12

• Customization: Available
• Feature: Longlife
• Step: Single-Step
• Model NO.: SD12
• Layout: Coaxial
• Openness: Closed
• Installation: Horizontal
• Transmission Form: Worm
• Type: Single-Row Ball
• Size: 12inch
• Custom Design: Available
• Brand: Lyhy
• Company History: Since 1993
• Rolling Body: Roller Bearings
• Separated: Unseparated
• The Number of Rows: Single
• Outer Dimension: 200-6500mm
• Load Direction: Axial
• Material: 50mn, 42CrMo
• Transport Package: Wooden Box
• Specification: ISO2001: 9008
• Trademark: LYHY
• Origin: China
• HS Code: 848210900
• Production Capacity: 600PCS Per Year

Product Description

Specifications for SD12 slewing drive, worm drive, worm gear





1. Introduction of LYHY heavy load slewing drive
Slewing Drive is also called slewing gear, worm gear, worm drive, rotary drive, slew drive, worm gear reducer and rotary drive unit. At present the majority of such devices are caller Slewing Drive.
LYHY heavy load slewing drive is usually composed of a slewing ring, worm, casting housing, and standard components like bearing and bolts, etc. While used in photovoltaic power generation system, the slewing drive is usually used in combination with DC planetary speed reducer motor and AC speed reducer motor. While used in engineering equipment, it is regularly used in combination with hydraulic motor to function as power driving system.


2. Structure
According to the raceway diameter of the slewing ring, a heavy load slewing drive include
M3 ich, M5 inch, M7 inch, M9 inch, M12 inch, M14 inch, M17 inch, M21 inch, M25inch, H14 inch, H17 inch, H21 inch and H25 inch.

3. Features:
Heavy load slewing drive is a special bearing. And a slewing drive is usually composed of a slewing ring, worm, casting housing, and standard components like bearing and bolts, etc.
Slewing drive is able to sustain more axial load, radial load and tilting moment. Turntable or frame rotates at azimuth and elevation driven by slewing drive.

4. Application:
Slewing drives are widely used in 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.

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