QY Series Crane Gear Reducers

 

 

 

QY Series Crane Gear Reducers

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QY Series

Features:

1. High carrying capacity
2. Small size and light weight
3. High efficiency, low noise and low vibration. The overall efficiency of each gear is 0.98
4. Adopt multiple stages to reduce the single-stage speed ratio, open the center distance, reduce the height of the reducer, and meet the requirements of various crane mechanisms; the maximum nominal transmission ratio of the reducer reaches 400
5. Three fulcrum reducer, which can be installed vertically, horizontally or even at a certain angle, which is convenient and flexible.
6. The three- and four-stage combination of this series of reducers provides a prerequisite for the generalization of slow cranes.

description

PARAMETERS：

   QY3S、QY3D nominal transmission ratio and actual transmission ratio

nominal center distance
a1
nominal transmission ratio
16
18
20
22.4
25
28
31.5
35.5
40
45
50
56
63
71
80
90
actual transmission ratio
160
15.43
17.20
19.21
21.53
24.24
27.44
31.28
35.37
38.74
42.86
49.09
54.31
61.49
69.75
79.82
87.30
180
15.84
18.31
20.23
22.41
24.92
27.82
31.73
35.84
39.53
44.65
50.09
57.66
62.15
71.03
82.89
90.94
200
15.70
17.49
19.53
21.89
24.65
27.90
31.81
35.97
39.39
45.23
50.14
57.57
66.02
71.03
80.05
92.59
225
15.93
18.42
20.35
22.55
25.07
27.99
31.92
36.05
40.45
45.88
51.22
58.11
63.55
70.04
80.05
91.32
250
15.60
17.32
19.27
21.51
24.10
27.15
30.78
35.18
38.35
43.83
48.60
55.45
60.94
69.42
79.91
86.13
280
15.87
18.27
20.12
22.21
25.94
28.92
31.06
36.58
38.25
45.04
48.68
54.86
63.46
69.55
80.05
86.28
315
15.21
17.19
19.90
22.02
24.45
27.27
30.58
34.52
38.76
43.75
49.08
54.09
61.71
69.37
79.85
86.07
355
15.84
18.31
20.23
22.41
24.92
27.82
31.73
35.84
39.53
44.65
50.09
57.66
62.15
69.36
78.03
86.97
400
15.95
17.59
20.46
22.72
25.33
28.37
31.96
34.55
39.36
45.03
50.09
57.66
62.15
70.04
80.05
92.59
450
15.69
18.14
20.04
22.20
24.68
27.56
31.43
35.50
39.01
44.98
50.47
58.09
62.62
71.56
78.92
88.79
500
16.06
17.82
19.83
22.13
24.81
27.94
31.68
36.20
39.83
44.58
48.60
54.67
60.94
69.42
79.91
88.59
560
15.87
18.27
20.12
22.21
25.94
28.92
31.06
36.58
38.25
45.04
46.68
54.86
63.46
69.55
80.05
86.28
630
15.69
18.14
20.04
22.20
24.68
27.56
31.43
35.50
39.83
44.98
50.47
55.66
62.62
70.72
81.40
87.74
710
16.05
17.71
20.60
22.88
25.50
28.56
32.18
36.52
39.63
45.50
49.37
56.82
63.00
70.88
79.73
94.10
800
15.95
17.59
20.46
22.72
25.33
28.37
31.96
34.55
39.36
45.30
50.09
57.66
62.15
70.04
80.05
92.59
QY4S、QY34S、QY4D、QY34D  nominal transmission ratio and actual transmission ratio
nominal center distance
a1
nominal transmission ratio
100
112
125
140
160
180
200
224
250
280
315
355
400
actual transmission ratio
200
102.99
114.44
127.79
143.57
162.50
177.99
203.34
229.16
245.96
282.43
304.13
351.79
403.39
225
100.82
114.14
130.11
147.11
161.13
180.79
200.02
220.45
249.59
283.12
309.66
354.33
404.24
250
97.41
108.77
124.04
140.10
157.20
171.37
197.25
227.03
244.72
279.68
306.87
358.09
385.99
280
99.46
112.60
128.36
145.13
158.96
171.82
197.29
222.35
254.96
293.46
315.75
340.35
393.67
315
95.61
106.76
121.75
137.51
154.28
173.07
196.32
216.37
236.65
272.39
310.75
355.15
382.81
355
98.22
110.65
125.44
143.34
156.26
175.33
200.38
225.42
247.34
284.69
306.87
349.60
389.68
400
100.97
112.56
120.92
142.38
153.90
175.33
197.59
222.69
257.58
296.48
319.57
350.21
405.09
450
101.63
113.36
127.13
143.52
160.99
180.63
199.08
219.55
250.47
288.30
310.75
349.34
393.01
500
97.41
108.77
124.04
140.10
157.20
171.37
197.25
221.90
239.19
275.31
307.23
342.46
379.68
560
102.21
114.48
128.98
139.41
158.82
171.67
197.59
222.69
240.03
276.28
315.75
340.35
393.67
630
98.30
109.76
125.17
141.37
158.62
177.98
204.85
225.92
243.51
280.29
315.32
345.28
388.44
710
100.10
112.76
127.83
146.08
159.25
172.79
194.39
218.69
243.76
280.57
311.06
354.38
418.24
800
100.97
112.56
120.92
142.38
153.90
175.33
197.59
222.69
257.58
296.48
319.57
350.21
405.09

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