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MGW Interchangeable Linear Guideways

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Zhejiang

  • Validity to:

    Long-term effective

  • Last update:

    2018-12-11 11:40

  • Browse the number:

    381

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Company Profile
Yueqing Three-Ring Precision Machinery Co.,Ltd
By certification [File Integrity]
Contact:

chtr123(Mr.)  

Email:

Telephone:

Phone:

Area:

Zhejiang

Address:

No.187, Zhongtai Road, Xinguang Industrial Zone, Liushi Town, Yueqing, Zhejiang, China

Website:

http://www.chtrmotion.com/ http://www.zjhaobang.com/com/chtr123/

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Product Details

TRW series mini linear guides are suitable for small automation equipment, widened type (rail width 14mm-30mm).

TRW series miniature linear guides are small in size, light in weight, precise in positioning, low in noise, smooth in operation, simple to install, Widened rail design for maximum torque load capacity for single-axis use.

TRW miniature linear guideways are Suitable for miniaturized equipment.

Model

H

H1

N

W1

W2

W3

L1

L2

L3

L4

Mxd

H3

Weight

TRW7C

9

1.9

5.5

25

19

3

31.2

10

21

-

M3x3

1.8

20g

TRW7H

9

1.9

5.5

25

19

3

41

19

30.8

-

M3x3

1.8

29g

TRW9C

12

2.9

6

30

21

4.5

39.3

12

27.5

-

M3x3

2.4

40g

TRW9H

12

2.9

6

30

23

3.5

50.7

24

38.5

-

M3x3

2.4

57g

TRW12C

14

3

8

40

28

6

44

15

31

-

M3x3.5

3.2

76g

TRW12H

14

3

8

40

28

6

59

28

46.3

-

M3x3.5

3.2

111g

TRW15C

16

4

9

60

45

7.5

55

20

39

60

M4x4.5

3.2

140g

TRW15H

16

4

9

60

45

7.5

74.5

35

58.3

79

M4x4.5

3.2

204g


Data unit is mm




Fluid lubrication results in a full-film or a boundary condition lubrication mode. A properly designed bearing system reduces friction by eliminating surface-to-surface contact between the journal and bearing through fluid dynamic effects.

Fluid bearings can be hydrostatically or hydrodynamically lubricated. Hydrostatically lubricated bearings are lubricated by an external pump that maintains a static amount of pressure. In a hydrodynamic bearing the pressure in the oil film is maintained by the rotation of the journal. Hydrostatic bearings enter a hydrodynamic state when the journal is rotating.[11] Hydrostatic bearings usually use oil, while hydrodynamic bearings can use oil or grease, however bearings can be designed to use whatever fluid is available, and several pump designs use the pumped fluid as a lubricant.[33]

Hydrodynamic bearings require greater care in design and operation than hydrostatic bearings. They are also more prone to initial wear because lubrication does not occur until there is rotation of the shaft. At low rotational speeds the lubrication may not attain complete separation between shaft and bushing. As a result, hydrodynamic bearings may be aided by secondary bearings that support the shaft during start and stop periods, protecting the fine tolerance machined surfaces of the journal bearing. On the other hand, hydrodynamic bearings are simpler to install and are less expensive.[citation needed]

In the hydrodynamic state a lubrication "wedge" forms, which lifts the journal. The journal also slightly shifts horizontally in the direction of rotation. The location of the journal is measured by the attitude angle, which is the angle formed between the vertical and a line that crosses through the center of the journal and the center of the bearing, and the eccentricity ratio, which is the ratio of the distance of the centre of the journal from the centre of the bearing, to the overall radial clearance. The attitude angle and eccentricity ratio are dependent on the direction and speed of rotation and the load. In hydrostatic bearings the oil pressure also affects the eccentricity ratio. In electromagnetic equipment like motors, electromagnetic forces can counteract gravity loads, causing the journal to take up unusual positions.


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