Republic of Belarus,
230003, Grodno,
Ozerskoe highway str., 14А

Mob. tel.: +375 29 384 0 999
Tel./fax: +375 152 71 82 35
71 82 34

Special gearboxes

RC gearboxes have replaced the outdated RM model, have a somewhat different body shape and of course internal modifications to increase the power and service life of the gearbox. The IZHMSK plant is ready to offer you the entire line of these gearboxes with a quality guarantee, delivery and service.

Special crane gearboxes RK-450, RK-500, RK-600 are designed to change torques and rotational speed.

Conditions for the use of gearboxes.
Gearboxes are used when working in a repeated short-term mode, i.e. at variable loads with periodic stops; their long-term operation with a constant load is allowed;

  • work with a load of one direction and reversible;

  • rotation of the shafts in any direction with a rotational speed of the input shaft of no more than 1500 rpm. and a circumferential speed of no more than 12 m/sec.;

  • the atmosphere of types I and II according to GOST 15150-69 with a dust content of no more than 10 mg / cubic meter.

  • climatic versions: Y, T for the accommodation category 1...3 and climatic versions of UHL and O for the accommodation category 4 according to GOST 15150-69.

An example of recording the symbol of a gearbox of the RK type with an axial distance of the output stage of 500 mm, a nominal gear ratio of 50, an assembly variant of 12

  • with a cylindrical end of the output shaft, climatic version U1, U2, U3, UHL4 - RC gearbox-500-50-12 Y1;

  • the same is true with the end of the output shaft in the form of a part of the gear coupling - the

    RC gearbox-500-50- 12MU1;

  • the same with the climatic version T1, T2, T3, 04 - RC gearbox-500-50- 12MT1.

The designation of the gearbox RK-600 indicates the number of teeth of the gear coupling: gearbox RK-600-50- 12MT1-48.

Technical specifications

Gear ratio

Nominal

Actual

8
8,23

10
10,35

12,5
12,64

16,0
15,75

20,0
20,49

22,4
23,34

31,5
31,50

40,0
41,52

50,0
48,57

Rotation speed, rev/min

Operating mode

Permissible torque on the output shaft of the gearbox, kHm

 

gearbox RC - 450

600

Extra light
PV-15%
PV-25%
PV-40%

25,02
18,43
15,99
13,55

28,84
19,68
17,09
14,50

33,19
21,94
19,07
16,21

38,33
23,44
20,51
17,33

39,98
23,80
20,75
17,70

39,99
23,93
20,85
17,77

42,78
24,51
21,15
18,03

44,56
23,50
20,45
17,40

48,83
24,42
21,36
17,93

750

Extra light
PV-15%
PV-25%
PV-40%

22,95
16,41
14,26
12,10

26,25
17,94
15,62
13,31

30,52
19,38
16,78
14,34

35,55
20,90
18,16
15,43

38,82
23,19
20,26
17,09

39,10
22,97
19,96
16,95

32,40
23,07
20,00
17,11

43,95
23,19
20,02
17,09

45,78
24,41
21,06
18,01

1000

Extra light
PV-15%
PV-25%
PV-40%

 

22,89
15,38
-
-

26,90
17,05
14,88
12,59

31,50
17,78
15,53
13,18

37,54
19,78
17,21
14,65

37,53
19,89
17,43
14,77

40,66
20,76
18,17
15,29

42,53
22,73
19,80
16,86

44,86
23,35
20,14
16,94

1250

Extra light
PV-15%
PV-25%
PV-40%

 

 

23,81
14,83
13,00
10,99

28,13
16,17
14,06
11,95

33,69
18,02
15,82
13,48

36,10
17,88
15,59
13,13

39,68
18,46
16,15
13,61

41,90
21,39
18,75
15,82

43,58
21,24
18,68
15,75

1500

Extra light
PV-15%
PV-25%
PV-40%

 

 

 

25,88
14,65
12,70
10,84

31,13
16,48
14,40
12,21

33,50
16,41
14,22
12,17

38,45
16,54
14,42
12,11

40,28
19,29
16,85
14,40

43,03
19,84
17,09
14,65

 

gearbox RC - 500

600

Extra light
PV-15%
PV-25%
PV-40%

51,27
29,54
25,63
21,73

51,88
30,28
26,86
22,74

54,36
32,81
28,61
24,22

57,38
35,16
30,52
25,88

58,29
32,96
28,69
24,42

57,77
32,13
28,03
23,58

59,60
35,09
30,28
25,96

62,87
32,35
28,08
23,80

64,85
33,57
29,37
24,80

750

Extra light
PV-15%
PV-25%
PV-40%

48,34
25,78
22,46
19,04

50,66
28,81
25,02
21,24

53,41
30,52
33,99
31,98

56,64
33,99
29,49
23,44

57,38
31,98
27,83
23,68

57,42
31,72
27,62
23,52

60,37
33,84
29,61
25,00

62,01
32,23
27,83
23,68

64,70
35,57
28,99
24,27

1000

Extra light
PV-15%
PV-25%
PV-40%

 

 

51,50
27,01
23,46
19,91

54,20
28,27
24,61
20,95

55,85
29,66
25,82
21,97

55,37
30,35
26,46
22,56

59,12
33,17
28,84
24,51

61,16
31,49
27,47
23,44

61,16
31,49
27,47
23,44

1250

Extra light
PV-15%
PV-25%
PV-40%

 

 

 

 

54,20
28,71
25,05
21,24

54,14
28,22
24,61
21,01

57,58
29,30
25,61
21,92

60,06
30,76
26,66
22,56

63,36
32,59
28,57
24,17

1500

Extra light
PV-15%
PV-25%
PV-40%

 

 

 

 

 

52,64
25,43
22,15
18,77

57,68
26,34
22,88
19,42

58,60
29,79
25,88
21,97

62,56
31,43
27,47
23,19

 

gearbox RC - 600

600

Extra light
PV-15%
PV-25%
PV-40%

51,88
43,34
37,84
31,74

56,46
46,54
40,44
34,33

69,62
51,50
44,28
38,15

80,57
54,93
48,34
41,02

90,03
56,46
49,13
41,81

90,58
56,74
49,22
41,70

96,13
58,16
50,95
42,78

95,22
55,54
48,22
40,89

101,47
57,22
49,,59
42,73

750

Extra light
PV-15%
PV-25%
PV-40%

 

51,88
42,73
37,23
31,74

64,09
46,54
39,67
33,57

74,22
49,81
42,97
36,72

86,67
54,93
47,85
40,53

88,87
53,60
46,76
39,65

96,13
55,37
47,68
40,38

94,73
54,69
47,85
40,53

99,46
57,38
50,05
42,12

1000

Extra light
PV-15%
PV-25%
PV-40%

 

 

 

65,92
42,48
36,62
31,50

77,82
46,69
40,28
34,43

83,06
48,20
42,04
35,48

90,85
49,03
42,68
36,34

91,56
53,47
46,51
39,55

96,13
53,56
47,61
40,28

1250

Extra light
PV-15%
PV-25%
PV-40%

 

 

 

 

 

73,83
41,84
36,10
31,01

88,83
43,84
37,84
32,07

87,89
49,81
43,95
37,21

93,39
51,27
43,95
37,35

1500

Extra light
PV-15%
PV-25%
PV-40%

 

 

 

 

 

 

85,56
38,83
33,84
28,65

85,45
45,90
39,80
33,69

91,56
46,08
40,28
34,18

  • during long-term operation with a constant load, the load value should be reduced by 50% compared to the PV = 40 mode%;

  • the permissible radial cantilever load on the double-ended shafts is reduced by 2 times.