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Product Details:
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| Material: | 50Mn, 42CrMo | Model: | 21 Inches |
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| Gear Ratio: | 125:1 | Efficiency: | 40% |
| Precision: | ≤0.15 | Driver: | Electric Motor |
| Color: | Requested | Application: | Industrial Use |
| High Light: | High Torque IP66 Worm Gear Slew Drive,Worm Gear Slew Drive 21 Inches,slewing bearing drive 21 Inches |
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IP66 Worm Gear Slew Drive, 21 Inches Big Size High Torque For Wind Turbines
Worm Gear Slew Drive Description
Our slewing ring bearings are ready-to-install rotary joints for self-lubricating, dry operation. The designe is based on maintenance-free materials. Besides, the high IP66 rating can make them used in applications with high temperatures, moisture, chemicals and even for food processing.
SE Model Performance Parameters
| SE Model Performance Parameters | ||||||||||||
| Model | Rated Output Torque (N.m) | Tilting Torque (kN.m) |
Holding Torque (kN.m) |
Axial Load (kN) |
Radial Load (kN) |
Ratio | Efficiency | Precision (degree) |
IP | Working Tep (℃) |
Self-locking | Weight (kg) |
| 1" | 400 | 1 | 2 | 22 | 12 | 32:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 6 |
| 3" | 806 | 1.5 | 3 | 30 | 16 | 31:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 8 |
| 5" | 962 | 6 | 9 | 68 | 27 | 37:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 12 |
| 7" | 7344 | 13.5 | 12 | 132 | 58 | 57:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 21 |
| 9" | 8784 | 45 | 30.8 | 340 | 130 | 61:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 49 |
| 12" | 11232 | 54 | 45 | 480 | 190 | 78:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 61 |
| 14" | 11232 | 68 | 54 | 680 | 230 | 85:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 63 |
| 17" | 11232 | 135 | 65 | 980 | 390 | 102:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 105 |
| 21" | 18000 | 203 | 81 | 1600 | 640 | 125:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 149 |
| 25" | 18000 | 271 | 89 | 2400 | 950 | 150:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 204 |
Applications
Wind energy slewing bearings generally have single-row four-point contact ball type, double-row four-point contact ball type, cross-roller type, three-row roller type, etc. Among them, the single-row four-point contact ball type slewing bearing has a lower cost and High comprehensive performance; double-row ball slewing bearing has long service life, strong bearing capacity, low slewing resistance, large allowable wear, and does not require high mounting base, but its motion accuracy is low; cross-roller slewing bearing has high accuracy , long life, high dynamic load capacity, but high requirements for base rigidity and precision, and edge effect is prone to occur when the roller and raceway are in contact, resulting in the actual stress of the edge far greater than the design stress; three-row roller type Slewing bearings generally have a very high static load carrying capacity.
Contact Person: Mr. Tommy Zhang
Tel: +86-18961639799
