9 Mm Linear Guides

The TRN9C/TRN9H is a small precision linear guide.
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Product Details

TRN9C miniature guide rail is 9mm wide, global standard length block.

TRN9H miniature guide rail is 9mm wide, extended block.

The TRN9C/TRN9H miniature LM guideway with two-row ball cycle design, the ball groove takes a Gothic structure with a contact angle of 45 degrees, which can achieve four-way load.

The TRN9C/TRN9H 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



Examples of the second type of bearing are Oilites and plastic bearings made from polyacetal; examples of the third type are metalized graphite bearings and PTFE bearings.[10]

Most plain bearings have a plain inner surface; however, some are grooved, such as spiral groove bearing. The grooves help lubrication enter the bearing and cover the whole journal.[28]

Self-lubricating plain bearings have a lubricant contained within the bearing walls. There are many forms of self-lubricating bearings. The first, and most common, are sintered metal bearings, which have porous walls. The porous walls draw oil in via capillary action[29] and release the oil when pressure or heat is applied.[30] An example of a sintered metal bearing in action can be seen in self-lubricating chains, which require no additional lubrication during operation. Another form is a solid one-piece metal bushing with a figure eight groove channel on the inner diameter that is filled with graphite. A similar bearing replaces the figure eight groove with holes plugged with graphite. This lubricates the bearing inside and out.[31] The last form is a plastic bearing, which has the lubricant molded into the bearing. The lubricant is released as the bearing is run in.[32]

There are three main types of lubrication: full-film conditionboundary condition, and dry condition. Full-film conditions are when the bearing's load is carried solely by a film of fluid lubricant and there is no contact between the two bearing surfaces. In mix or boundary conditions, load is carried partly by direct surface contact and partly by a film forming between the two. In a dry condition, the full load is carried by surface-to-surface contact.

Bearings that are made from bearing grade materials always run in the dry condition. The other two classes of plain bearings can run in all three conditions; the condition in which a bearing runs is dependent on the operating conditions, load, relative surface speed, clearance within the bearing, quality and quantity of lubricant, and temperature (affecting lubricant viscosity). If the plain bearing is not designed to run in the dry or boundary condition, it has a high coefficient of friction and wears out. Dry and boundary conditions may be experienced even in a fluid bearing when operating outside of its normal operating conditions; e.g., at startup and shutdown.


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