3D Printer Linear Guides

The 15mm linear guide is a substitute for linear bearings.
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Product Details

The 15mm mini linear guide is a linear guide with a guide rail width of 15mm.

Linear guides compare linear bearings, have long service life, high load bearing capacity, high precision and stable performance.

The TRN12C/TRN12H mini linear guideways are mainly used in medical equipment, electronic equipment and linear motors.


Model

H

H1

N

W1

W2

W3

L1

L2

L3

L4

Mxd

H3

Weight

TRN7C

8

1.5

5

17

12

2.5

23.5

8

14.3

-

M2x2.5

1.5

10g

TRN7H

8

1.5

5

17

12

2.5

31

12

21.6

-

M2x2.5

1.5

14g

TRN9C

10

2

5.5

20

15

2.5

30

10

20.8

-

M3x3

2.2

19g

TRN9H

10

2

5.5

20

15

2.5

40.5

15

30.9

-

M3x3

2.2

28g

TRN12C

13

3

7.5

27

20

3.5

34

15

21.6

-

M3x3.5

2.7

35g

TRN12H

13

3

7.5

27

20

3.5

44

20

32

-

M3x3.5

2.7

52g

TRN15C

16

4

8.5

32

25

3.5

42

20

27.8

-

M3x4

3.1

64g

TRN15H

16

4

8.5

32

25

3.5

57

25

42.7

62

M3x4

3.1

95g



Data unit is mm

工厂图



Solid plastic plain bearings are now increasingly popular due to dry-running lubrication-free behavior. Solid polymer plain bearings are low weight, corrosion resistant, and maintenance free. After studies spanning decades, an accurate calculation of the service life of polymer plain bearings is possible today. Designing with solid polymer plain bearings is complicated by the wide range, and non-linearity, of coefficient of thermal expansion. These materials can heat rapidly when used in applications outside the recommended pV limits.

Solid polymer type bearings are limited by the injection molding process. Not all shapes are possible with this process, and shapes that are possible are limited to what is considered good design practice for injection molding. Plastic bearings are subject to the same design cautions as all other plastic parts: creep, high thermal expansion, softening (increased wear/reduced life) at elevated temperature, brittle fractures at cold temperatures, and swelling due to moisture absorption. While most bearing-grade plastics/polymers are designed to reduce these design cautions, they still exist and should be carefully considered before specifying a solid polymer (plastic) type.

Plastic bearings are now quite common, including usage in photocopy machines, tills, farm equipment, textile machinery, medical devices, food and packaging machines, car seating, and marine equipment.

  • Rolling element bearings

Rolling element bearing life is determined by load, temperature, maintenance, lubrication, material defects, contamination, handling, installation and other factors. These factors can all have a significant effect on bearing life. For example, the service life of bearings in one application was extended dramatically by changing how the bearings were stored before installation and use, as vibrations during storage caused lubricant failure even when the only load on the bearing was its own weight;[15] the resulting damage is often false brinelling.[16] Bearing life is statistical: several samples of a given bearing will often exhibit a bell curve of service life, with a few samples showing significantly better or worse life. Bearing life varies because microscopic structure and contamination vary greatly even where macroscopically they seem identical.


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