Long Service Life Linear Guide

The slider of CHTR has strong versatility and can follow up the load to select the appropriate type and length.
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Product Details

CHTR linear guides rail was is divided into standard slider and lengthened slider. Standard slider is affordable and widely used, Longer slider has stronger load-carrying performance

CHTR linear guide with mature and stable technology, the allowable error of height size M and allowable mutual error of height size M in pairs will be keep in ±0.03 and 0.01.

Linear guides are mainly used in office machine, medical devices,  automation machines,  drilling machine,laser machine, woodworking machines, etc.


Model

M

W

L

B

C

S

W1

W2

M1

F

TRH15A

24

47

61.8

38

30

M5

15

16

15

60

TRH20A

30

63

77.4

53

40

M6

20

21.5

18

60

TRH20AL

30

63

93.4

53

40

M6

20

21.5

18

60

TRH25A

36

70

83.5

57

45

M8

23

23.5

22

60

TRH25AL

36

70

102.6

57

45

M8

23

23.5

22

60

TRH30A

42

90

100.5

72

52

M10

28

31

26

80

TRH30AL

42

90

123

72

52

M10

28

31

26

80

TRH35A

48

100

113.9

82

62

M10

34

33

29

80

TRH35AL

48

100

139.2

82

62

M10

34

33

29

80

TRH45A

60

120

138.5

100

80

M12

45

37.5

38

105

TRH45AL

60

120

169.5

100

80

M12

45

37.5

38

105



Data unit is mm

工厂图





In harsh environments, such as ovens and dryers, a copper and graphite alloy, commonly known by the trademarked name graphalloy, is used. The graphite is a dry lubricant, therefore it is low friction and low maintenance. The copper adds strength, durability, and provides heat dissipation characteristics.


Known as jewel bearings, these bearings use jewels, such as sapphire, ruby, and garnet.                                    


Common motions permitted by bearings are:

  • Radial rotation e.g. shaft rotation

  • linear motion e.g. drawer

  • spherical rotation e.g. ball and socket joint

  • hinge motion e.g. door, elbow, knee



There is still room for discussion as to whether the rolling element excites the natural frequencies of bearing component when it passes the fault on the outer race. Hence we need to identify the bearing outer race natural frequency and its harmonics. The bearing faults create impulses and results in strong harmonics of the fault frequencies in the spectrum of vibration signals. These fault frequencies are sometimes masked by adjacent frequencies in the spectra due to their little energy. Hence, a very high spectral resolution is often needed to identify these frequencies during a FFT analysis. The natural frequencies of a rolling element bearing with the free boundary conditions are 3 kHz. Therefore, in order to use the bearing component resonance bandwidth method to detect the bearing fault at an initial stage a high frequency range accelerometer should be adopted, and data obtained from a long duration needs to be acquired. A fault characteristic frequency can only be identified when the fault extent is severe, such as that of a presence of a hole in the outer race. The harmonics of fault frequency is a more sensitive indicator of a bearing outer race fault. For a more serious detection of defected bearing faults waveform, spectrum and envelope techniques will help reveal these faults. However, if a high frequency demodulation is used in the envelope analysis in order to detect bearing fault characteristic frequencies, the maintenance professionals have to be more careful in the analysis because of resonance, as it may or may not contain fault frequency components.
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