Special crane reducers VK-350… VK-550
They allow the mechanism to function even under the highest loads
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Special crane vertical three-stage gearboxes VK-350, VK-475, VK-550 are intended for use in drives of crane movement mechanisms. The reducers are operated in areas with a moderate (climatic version U), dry and humid tropical (T) climate, placement category 2 according to GOST 15150.
Terms of use:
- constant and variable, unidirectional and reversible load;
- work is constant and with periodic stops;
- rotation of the shafts in any direction without advantage at a speed of rotation of the high-speed shaft up to 1000 revolutions per minute;
- ambient temperature – from -40 0 C to + 50 0 C;
- increased dustiness, non-aggressive environment;
- humidity at a normal temperature of 20 0 C – up to 95%.
Technical characteristics of VK type reducers:
| Type size | Transmission relations | Rotational frequency of the input shaft, min-1 | Rated torque on the output shaft, НХМ | mass, kg |
| VK-350 | 10; 16; 31,5; 50 | 1000 … 600 | 85…725 | 120 |
| VK-475 | 20; 28; 50; 112 | 1300…1950 | 215 | |
| VK-550 | 18; 31,5; 71; 125 | 2000…2400 | 279 |
Overall and connecting dimensions
| Type size | АВ | AP | АТ | А | A1 | A2 | В | V1 | B2 | Х | H1 | ch | L | L1 | L2 | L3 | L4 | d | p |
| VK-350 | 90 | 130 | 130 | 50 | – | 185 | 170 | 220 | 185 | 298 | 150 | 20 | 558 | 280 | 132 | 198 | 180 | 17 | 4 |
| VK-475 | 105 | 160 | 210 | 50 | 80 | 200 | 255 | 250 | 215 | 458 | 220 | 25 | 790 | 482 | 200 | 243 | 260 | 17 | 8 |
| VK-550 | 140 | 190 | 220 | 50 | 80 | 320 | 285 | 280 | 245 | 486 | 235 | 25 | 880 | 557 | 215 | 258 | 280 | 17 | 8 |
Dimensions of the ends of the input and output shafts
| Type size | d | d1 | d2 | l | l1 | b | t | d3 | l2 | b1 | t1 |
| mm | |||||||||||
| VK-350 | 30 | 45 | М20х1.5 | 80 | 60 | 8 | 16,5 | 35 | 55 | 10 | 38,5 |
| VK-475 | 40 | 50 | M24x2 | 110 | 82 | 10 | 20,95 | 65 | 110 | 18 | 69 |
| VK-550 | 40 | 50 | M24x2 | 110 | 82 | 10 | 20,95 | 80 | 110 | 22 | 85 |
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Ukraine, 36007, Poltava, Zavodska Street, 3