Japan THK SCR35 SCR45 SCR65 Cross Lm Guide SCR35 SCR 45 SCR 65 THK Cross Lm Guide Model ...

Japan THK SCR35 SCR45 SCR65 Cross Lm Guide SCR35 SCR 45 SCR 65 THK Cross Lm Guide Model ...

The cross linear sliders type of linear guide rail is making two-way movement by X and Y axis , it’s used for some special machine.
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Excellent quality and reasonable price are our main advantages, which make our Cross Linear Motion Guide Rails, 3D Printer Linear Guides, Ball Type Rolling Guides better for receiving accolades around the world. We adhere to the independent research and development of core and characteristic application technologies, and pay attention to the precipitation and accumulation of intellectual property rights. We take a brand-new management model, perfect technology, thoughtful service, and excellent quality as the basis for survival.

CHTR cross linear guideway have the same internal structure as TRH/TRS series. Only TRC type can be used to construct a direct linear motion system, so the traditional sliding frame is not needed. The structure of X-Y motion is simplified and miniaturization is possible.

The design of TRC series guideway was two TRH guideway intersected on the back and intersected directly to form an integral whole. Because of the extremely high precision processing, the Perpendicularity Error of the TRC slider is within 2 microns per 100 mm. Vertical between two tracks is also processed with high accuracy, so very high orthogonal accuracy can be obtained.

Linear guides are mainly used in mechanical structures with high precision requirements, such as grinding machines, lathes, woodworking machines, handling machines, transport devices, industrial automation machines, semiconductor machinery, packaging machines, etc.

Model

M

M1

L

E

M2

J

K

W

W1

H

D×d×h

F

TRC15

47

42.6

61.8

39.8

38.2

20

34.8

15

12.4

15

7.5×4.5×5.3

60

TRC20

57

52

77.6

51

47

30

42.5

20

15.5

18

9.5×6×8.5

60

TRC20L

57

52

93.6

67

47

56

37

20

23.5

18

9.5×6×8.5

60

TRC25

70

63

83.5

59.5

56

34

52

23

18.25

22

11×7×9

60

TRC25L

70

63

102.5

78.5

56

64

44

23

27.75

22

11×7×9

60

TRC30

82

74

100.5

70.5

66

40

61

28

21.25

26

14×9×12

 80

TRC30L

82

74

123

93

66

76

53

28

32.5

26

14×9×12

80

TRC35L

95

85.5

139.2

105.8

76

90

61

34

35.9

29

14×9×12

80


Data unit is mm

工厂图



Oil whirl can be prevented by a stabilising force applied to the journal. A number of bearing designs seek to use bearing geometry to either provide an obstacle to the whirling fluid or to provide a stabilising load to minimize whirl. One such is called the lemon bore or elliptical bore. In this design, shims are installed between the two halves of the bearing housing and then the bore is machined to size. After the shims are removed, the bore resembles a lemon shape, which decreases the clearance in one direction of the bore and increases the pre-load in that direction. The disadvantage of this design is its lower load carrying capacity, as compared to typical journal bearings. It is also still susceptible to oil whirl at high speeds, however its cost is relatively low.[11]

Another design is the pressure dam or dammed groove,[35] which has a shallow relief cut in the center of the bearing over the top half of the bearing. The groove abruptly stops in order to create a downward force to stabilize the journal. This design has a high load capacity and corrects most oil whirl situations. The disadvantage is that it only works in one direction. Offsetting the bearing halves does the same thing as the pressure dam. The only difference is the load capacity increases as the offset increases.[11]

A more radical design is the tilting-pad design, which uses multiple pads that are designed to move with changing loads. It is usually used in very large applications but also finds extensive application in modern turbomachinery because it almost completely eliminates oil whirl.


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