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Luoyang Huayang Special Heavy-Duty and Large Bearing Manufacturing Co., Ltd.

Slew Drive, Slewing Drive, Slewing Gear manufacturer / supplier in China, offering Twin Worm Slew Drive for Yacht Crane L21 Inch, Tower Crane Slewing Ring Bearing Hsw. 30.880, Drawn Cup Needle Roller Bearing Sce87 and so on.

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Supplier Homepage Product Slewing Dirve Twin Worm Slew Drive for Yacht Crane L21 Inch

Twin Worm Slew Drive for Yacht Crane L21 Inch

Purchase Qty.:
(Pieces)
1-19 20+
FOB Unit Price: US $1,500 US $1,300
Purchase Qty. (Pieces) FOB Unit Price
1-19 US $1,500
20+ US $1,300
Get Latest Price
Production Capacity: 100PCS/Month
Transport Package: Wooden Box
Payment Terms: L/C, T/T, D/P, Paypal, Western Union

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Basic Info
  • Model NO.: L21 inch
  • The Number of Rows: Single
  • Material: Bearing Steel
  • Separated: Unseparated
  • Brand: Lyhy
  • Structure: Dual Axis
  • Testing: in House
  • Application: Yacht Crane
  • Self Locking Gears: Yes
  • Specification: SGS
  • HS Code: 848210900
  • Rolling Body: Ball Bearings
  • Outer Dimension: Extra Large (440mm)
  • Load Direction: Axial, Radial and Tilting Moment
  • Company History: Since Year 1993
  • Size: 21inch
  • Warranty Period: 1 Year
  • Payment: Tt,LC
  • Custom Design: Available
  • Trademark: LYHY
  • Origin: Luoyang, China
Product Description
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.

Technical parameter for L21 inch slew drives
1. Type: L21 inch slew drives is ideally suited for the slewing gear of a yacht crane
2. Self-locking gears: Yes
3. Rated output torque: 20.2kn-m
4. Tilting moment torque: 203kn-m
5. Static load rating(axial): 1598
6. Static load rating(radial): 640
7. Dynamic load rating(axial): 385
8. Dynamic load rating(radial): 335
9. Gear Ratio: 125: 1
10. Weight: 158kgs
11. Delivery time: 30days

Detailed technical data please kindly contact us directly.



Slewing drive introduction
1. Introduction of LYHY 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.
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
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