Structure and Features
The rolling surface of the steel ball is processed by special equipment and extremely high-precision processing technology. The THK NRS45CX Linear Guide achieves deep groove rolling surface processing that is closer to the ball diameter than previous products. As a result, the high rigidity, vibration and impact resistance, and damping (damping) required for machine tools are improved, making it a type that can withstand heavy loads.
The LM rolling guide of the THK NRS45CX Linear Guide has very high rigidity, so it is structurally susceptible to the misalignment of the center line of the mounting surface and the assembly error. If affected by this, it may shorten the service life and cause poor operation. Please consult THK when selecting.
[Improved damping effect]
When the machine tool (with the THK NRS45CX Linear Guide) is not cutting, the L rolling guide moves lightly as usual. When the machine tool cuts the workpiece, the LM rolling guide bears the cutting load, the contact area between the steel ball and the rolling surface increases, and the rolling motion and sliding motion are mixed together to become appropriate rolling and sliding motion.
[Extremely Reasonable LM Guide]
The NRS type does not produce excessive differential sliding as seen in the Gothic arch groove, and can move lightly during rapid feeding, achieving high positioning accuracy. Therefore, the THK NRS45CX Linear Guide is an extremely reasonably designed LM Guide.
THK model NRS 25CX NRS 25LCX NRS 30CX NRS 30LCX NRS 35CX NRS 35LCX NRS 45CX NHS 45LCX NRS 55CX NRS 55LCX NRS 65CX NRS 65LCX
Model No. | Outer dimensions | LM block dimensions | H₃ | ||||||||||||||||
Height
M |
Width
W |
Length
L |
B | C | S | H | L1 | T | T₁ | K | N | fo | E | eo | D₀ | Grease nipple |
|||
NRS 25CX NRS 25LCX |
31 | 72 | 82.8 102 |
59 | 45 | M8 | 6.8 | 61.4 80.6 |
14.8 | 16 | 25.5 | 7.8 | 5.1 | 12 | 4.5 | 3.9 | B-M6F | 5.5 | |
NRS 30CX NRS 30LCX |
38 | 90 | 98 120.5 |
72 | 52 | M10 | 8.5 | 72.1 94.6 |
16.9 | 18.1 | 31 | 10.3 | 7 | 12 | 6.5 | 3.9 | B-M6F | 7 | |
NRS 35CX NRS 35LCX |
44 | 100 | 109.5 135 |
82 | 62 | M10 | 8.5 | 79 104.5 |
18.9 | 20.1 | 35 | 12.1 | 8 | 12 | 6 | 5.2 | B-M6F | 9 | |
NRS 45CX NRS 45LCX |
52 | 120 | 138.2 171 |
100 | 80 | M12 | 10.5 | 105 137.8 |
20.6 | 22.1 | 40.4 | 13.9 | 8 | 16 | 8.5 | 5.2 | B-PT1/8 | 11.6 | |
NRS 55CX NRS 55LCX |
63 | 140 | 163.3 200.5 |
116 | 95 | M14 | 12.5 | 123.6 160.8 |
22.5 | 24 | 49 | 16.6 | 10 | 4F | 5.2 | B-PT1/8 | 14 | ||
NRS 65CX NRS 65ICX |
75 | 170 | 186 246 |
142 | 110 | M16 | 14.5 | 143.6 203.6 |
26 | 28 | 1(l | 19 | 15 | 16 | 8.7 | 8.2 | B-PT1/8 |
LM rail dimensions | Basic load rating | Static permissible moment kN·m* | Mass | |||||||||||
Width
W₁ |
W₂ | Height
M₁ |
Pitch
F |
d₁ ×d₂Xh | Length’
Max |
C
kN |
C₀
kN |
MA | Ma | Mc | LM blockkg |
LM railkg/m |
||
1 block |
Double blocks |
1 block |
Double blocks |
1 block |
||||||||||
25 | 23.5 | 17 | 40 | 6×9.5×8.5 | 3000 | 28.4 34.7 |
52.2 69.6 |
0.457 0.786 |
2.43 3.9 |
0.422 0.727 |
2.25 3.61 |
0.552 0.732 |
0.6 0.8 |
2.9 |
31 | 21 | 80 | 7×11×9 | 3000 | 41.9 51.2 |
75.2 100.2 |
0.785 1.36 |
4.12 6.62 |
0.726 1.26 |
3.82 6.13 |
0.896 1.19 |
1.1 1.5 |
4.2 | |
34 | 33 | 24.5 | 80 | 9×14×12 | 3000 | 55.5 68.6 |
95.5 129.5 |
1.09 1.95 |
5.88 9.61 |
1.01 1.81 |
5.45 8.9 |
1.36 1.84 |
1.6 2 |
6 |
45 | 37.5 | 29 | 105 | 14×20×17 | 3000 | 84.4 101.1 |
151.4 195.9 |
2.23 3.87 |
11.7 18.3 |
2.07 3.57 |
10.8 16.9 |
2.9 3.75 |
2.7 3.6 |
9.5 |
53 | 43.5 | 36.5 | 120 | 16×23×20 | 3000 | 108.7 134.1 |
191.6 259.3 |
3.36 5.76 |
17.4 28.4 |
3.1 5.32 |
16.1 26.3 |
4.19 5.67 |
4.5 5.9 |
14 |
63 | 53.5 | 43 | 150 | 18X26×22 | 3000 | 159.8 206 |
269.4 387.2 |
5.46 10.9 |
27.8 51.9 |
5.05 10.1 |
25.8 48 |
6.97 10.02 |
7.8 11 |
19.6 |
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