LMB-AJ Adjustable linear bushing bearing with ball groove
The adjustable type linear bearing can adjust the tightness between the shaft and bearing. It is specially designed
with an open gap on the outside diameter for clearance adjustment. When a standard type product is installed
onto the shaft, inappropriate clearance will cause premature damage, failure, or unstable running to the linear
motion bushing. When the adjustable type product is installed into a bearing block that can control the outer
diameter, users can adjust the clearance according to the actual situation, so as to ensure the optimum working
condition. For example, the clearance can be zero or even negative in accordance with specific conditions.
This adjustable type linear bearing has three series, LM-AJ, LME-AJ, and LMB-AJ, which are respectively
corresponding to the use of standards in Asia, Europe and the Americas. With rich sizes in each series,
the product can meet the different demand of customers.
The LM-AJ linear bearing with slot for clearance adjustment is metric in size. It is crafted according to Asian standard,
so as to meet the demand for use in Asian machines. The product used for the shaft with a minimum nominal
diameter of 6mm has a length of 19mm, while the linear bearing with slot used for the shaft with a maximum
nominal diameter of 150mm is 240mm in length. Our different models of products can be applied in different machines,
in order to help the normal operation of shaft and shaft parts, as well as to ensure the precise working position.
Technical Parameters
| Nominal shaft dia. mm |
Resin retainer |
mm |
dr |
Major dimensions and tolerance(T) |
| Tolerance µm |
mm |
D |
mm |
L |
mm |
B |
W mm |
D1 mm |
h mm |
h1 mm |
θ |
| Clearance adjustable type LM...UU-AJ |
Ball circuit |
Weight (gf) |
Precision |
High |
T μm |
T μm |
T μm |
| 6 |
LM6UU-AJ |
4 |
7.5 |
6 |
0 -6 |
0 -9 |
12 |
0 -11 |
19 |
0 -200 |
13.5 |
0 -200 |
1.1 |
11.5 |
- |
- |
|
| 8 |
LM8UU-AJ |
4 |
14.7 |
8 |
15 |
24 |
17.5 |
1.1 |
14.3 |
1 |
- |
|
| 10 |
LM10UU-AJ |
4 |
29 |
10 |
19 |
0 -13 |
29 |
22 |
1.3 |
18 |
1 |
6.8 |
80° |
| 12 |
LM12UU-AJ |
4 |
31 |
12 |
21 |
30 |
23 |
1.3 |
20 |
1.5 |
8 |
80° |
| 13 |
LM13UU-AJ |
4 |
42 |
13 |
23 |
32 |
23 |
1.3 |
22 |
1.5 |
9 |
80° |
| 16 |
LM16UU-AJ |
5 |
68 |
16 |
28 |
37 |
26.5 |
1.6 |
27 |
1.5 |
11 |
80° |
| 20 |
LM20UU-AJ |
5 |
85 |
20 |
0 -7 |
0 -10 |
32 |
0 -16 |
42 |
30.5 |
1.6 |
30.5 |
1.5 |
11 |
60° |
| 25 |
LM25UU-AJ |
6 |
216 |
25 |
40 |
59 |
0 -300 |
41 |
0 -300 |
1.85 |
38 |
2 |
12 |
50° |
| 30 |
LM30UU-AJ |
6 |
245 |
30 |
45 |
64 |
44.5 |
1.85 |
43 |
2.5 |
15 |
50° |
| 35 |
LM35UU-AJ |
6 |
384 |
35 |
0 -8 |
0 -12 |
52 |
0 -19 |
70 |
49.5 |
2.1 |
49 |
2.5 |
17 |
50° |
| 40 |
LM40UU-AJ |
6 |
579 |
40 |
60 |
80 |
60.5 |
2.1 |
57 |
3 |
20 |
50° |
| 50 |
LM50UU-AJ |
6 |
1560 |
50 |
80 |
100 |
74 |
2.6 |
76.5 |
3 |
25 |
50° |
| 60 |
LM60UU-AJ |
6 |
1820 |
60 |
0 -9 |
0 -15 |
90 |
0 -22 |
110 |
85 |
3.15 |
86.5 |
3 |
30 |
50° |
| 80 |
LM80UU-AJ |
6 |
4300 |
80 |
120 |
140 |
0 -400 |
105.5 |
0 -400 |
4.15 |
116 |
3 |
40 |
50° |
| 100 |
LM100UU-AJ |
6 |
8540 |
100 |
0 -10 |
0 -20 |
150 |
0 -25 |
175 |
125.5 |
4.15 |
145 |
3 |
50 |
50° |
| 120 |
LM120UU-AJ |
8 |
14900 |
120 |
180 |
200 |
158.6 |
4.15 |
175 |
3 |
85 |
80° |
| 150 |
LM150UU-AJ |
8 |
20150 |
150 |
0 -13 |
0 -25 |
210 |
0 -29 |
240 |
170.6 |
5.15 |
204 |
3 |
105 |
80° |
| Eccentricity µM |
Radial clearance (max) µm |
Basic load rating |
| Precision |
High |
Dynamic C N |
Static Co N |
| 8 |
12 |
-3 |
206 |
265 |
| 274 |
392 |
| -4 |
372 |
549 |
| 510 |
784 |
| 510 |
784 |
| -6 |
774 |
1,180 |
| 10 |
15 |
882 |
1,370 |
| 980 |
1,570 |
| -8 |
1,570 |
2,740 |
| 12 |
20 |
1,670 |
3,140 |
| -10 |
2,160 |
4,020 |
| -13 |
3,820 |
7,940 |
| 17 |
25 |
4,700 |
10,000 |
| -20 |
7,350 |
16,000 |
| 20 |
30 |
14,100 |
34,800 |
| -25 |
16,400 |
40,000 |
| 25 |
40 |
21,100 |
54,300 |
The LME-AJ adjustable linear bearing is measured in metric size, and is broadly used in Europe.
Technical Parameters
| Nominal shaft dia. mm |
Resin retainer |
mm |
dr |
Major dimensions and tolerance(T) |
| Tolerance µm |
mm |
D |
mm |
L |
mm |
B |
W mm |
D1 mm |
h mm |
h1 mm |
θ |
| Clearance adjustable type LME...UU-AJ |
Ball circuit |
Weight (gf) |
Precision |
High |
T μm |
T μm |
T μm |
| 5 |
LME5UU-AJ |
4 |
10 |
5 |
- |
+8 0 |
12 |
0 -8 |
22 |
0 -200 |
14.5 |
0 -200 |
1.1 |
11.5 |
1 |
- |
- |
| 8 |
LME8UU-AJ |
4 |
19.5 |
8 |
16 |
25 |
16.5 |
1.1 |
15.2 |
1 |
- |
- |
| 10 |
LME10UU-AJ |
4 |
29 |
10 |
19 |
0 -9 |
29 |
22 |
1.3 |
18 |
1 |
6.8 |
80º |
| 12 |
LME12UU-AJ |
4 |
40 |
12 |
22 |
32 |
22.9 |
1.3 |
21 |
1.5 |
7.5 |
78º |
| 16 |
LME16UU-AJ |
5 |
56 |
16 |
- |
+9 -1 |
26 |
36 |
24.9 |
1.3 |
24.9 |
1.5 |
10 |
78º |
| 20 |
LME20UU-AJ |
5 |
90 |
20 |
32 |
0 -11 |
45 |
31.5 |
1.6 |
30.3 |
2 |
10 |
60º |
| 25 |
LME25UU-AJ |
6 |
212 |
25 |
- |
+11 -1 |
40 |
58 |
0 -300 |
44.1 |
0 -300 |
1.85 |
37.5 |
2 |
12.5 |
60º |
| 30 |
LME30UU-AJ |
6 |
320 |
30 |
47 |
68 |
52.1 |
1.85 |
44.5 |
2 |
12.5 |
50º |
| 40 |
LME40UU-AJ |
6 |
694 |
40 |
- |
+13 -2 |
62 |
0 -13 |
80 |
60.6 |
2.15 |
59 |
3 |
16.8 |
50º |
| 50 |
LME50UU-AJ |
6 |
1110 |
50 |
75 |
100 |
77.6 |
2.65 |
72 |
3 |
21 |
50º |
| 60 |
LME60UU-AJ |
6 |
2050 |
60 |
90 |
0 -15 |
125 |
0 -400 |
101.7 |
0 -400 |
3.15 |
86.5 |
3 |
27.2 |
54º |
| Eccentricity µM |
Radial clearance (max) µm |
Basic load rating |
| Dynamic C N |
Static Co N |
| 12 |
-3 |
206 |
265 |
| 265 |
402 |
| -4 |
372 |
549 |
| 510 |
784 |
| 578 |
892 |
| 15 |
-6 |
862 |
1370 |
| 980 |
1570 |
| -8 |
1570 |
2,740 |
| 17 |
2160 |
4,020 |
| -13 |
3820 |
7,940 |
| 20 |
4,700 |
9,800 |
Our LMB-AJ adjustable linear bushing adopts the measurement of inch size, and can be commonly found use in the American machinery.
Technical Parameters
| Nominal shaft dia. inch mm |
Resin retainer |
inch mm |
dr |
Eccentricity inch/µ m |
Radial clearance (max) inch/µm |
Basic load rating |
| Tolerance inch/µm |
| Clearance adjustable type LMB...UU-AJ |
Ball circuit |
Weight (gf) |
Precision |
High |
Precision |
High |
Dynamic C N |
Static Co N |
| 1/4 6.350 |
LMB4_AJ |
4 |
7.5 |
0.2500 6.350 |
0-0.00025 0 -6 |
0 -0.00040 0 -9 |
0.0003 8 |
0.0005 12 |
-0.0001 -3 |
206 |
265 |
| 3/8 9.525 |
LMB6UU_AJ |
4 |
13.5 |
0.3750 9.525 |
225 |
314 |
| 1/2 12.700 |
LMB8UU_AJ |
4 |
36.5 |
0.5000 12.700 |
-0.0001 -4 |
510 |
784 |
| 5/8 15.875 |
LMB10UU_AJ |
4 |
74 |
0.6250 15.875 |
774 |
1,180 |
| 3/4 19.050 |
LMB12UU_AJ |
5 |
93 |
0.7500 19.050 |
0 -0.00030 0 -7 |
0 -0.00040 0 -10 |
0.0004 10 |
0.0006 15 |
-0.0002 -6 |
862 |
1,370 |
| 1 25.400 |
LMB16UU_AJ |
6 |
198 |
1.0000 25.400 |
980 |
1,570 |
| 1-1/4 31.750 |
LMB20UU_AJ |
6 |
430 |
1.2500 31.750 |
0 -0.00035 0 -8 |
0 -0.00050 0 -12 |
0.0005 12 |
0.0008 20 |
-0.0003 -8 |
1,570 |
2,740 |
| 1-1/2 38.100 |
LMB24UU_AJ |
6 |
660 |
1.5000 38.100 |
2,180 |
4,020 |
| 2 50.800 |
LMB32UU_AJ |
6 |
1,120 |
2.0000 50.800 |
0.0007 17 |
0.0010 25 |
-0.0005 -13 |
3,820 |
7,940 |
| Major dimensions and tolerance(T) |
| inch mm |
D |
inch mm |
L |
inch mm |
B |
W inch mm |
D1 inch mm |
h inch mm |
h1 inch mm |
θ |
| T inch μm |
T inch μm |
T inch μm |
| 0.5000 12.700 |
0 -0.00045 0 -11 |
0.7500 19.050 |
0 -0.008 |
0.5110 12.98 |
0 -0.008 |
0.0390 0.992 |
0.4687 11.906 |
0.04 1 |
- |
- |
| 0.6250 15.875 |
0 -0.00050 0 -13 |
0.8750 22.225 |
0.6358 16.15 |
0.0390 0.992 |
0.5880 14.935 |
0.04 1 |
- |
- |
| 0.8750 22.225 |
1.2500 31.750 |
0 -200 |
0.9625 24.46 |
0 -200 |
.0459 1.168 |
0.8209 20.853 |
0.06 1.5 |
0.34 7.9375 |
80° |
| 1.1250 28.575 |
1.5000 38.100 |
1.1039 28.04 |
0.0559 1.422 |
1.0590 26.899 |
0.06 1.5 |
0.375 9.525 |
80° |
| 1.2500 31.750 |
0 -0.00065 0 -16 |
1.6250 41.275 |
1.1657 29.61 |
0.0559 1.422 |
1.1760 29.870 |
0.06 1.5 |
0.4375 11.1125 |
60° |
| 1.5625 39.688 |
2.2500 57.150 |
0 -0.012 |
1.7547 44.57 |
0 -0.012 |
0.0679 1.727 |
1.4687 37.306 |
0.06 1.5 |
0.5625 14.2875 |
50° |
| 2.0000 50.800 |
0 -0.00075 0 -19 |
2.6250 66.675 |
2.0047 50.92 |
0.0679 1.727 |
1.8859 47.904 |
0.10 2.5 |
0.625 15.875 |
50° |
| 2.3750 60.325 |
3.0000 76.200 |
0 -300 |
2.4118 61.26 |
0 -300 |
0.0859 2.184 |
2.2389 56.870 |
0.12 3 |
0.75 19.05 |
50° |
| 3.0000 76.200 |
0 -0.00090 0 -22 |
4.0000 101.600 |
3.1917 81.07 |
0.1029 2.616 |
2.8379 72.085 |
0.12 3 |
1.0 25.40 |
50° |
As a professional standard linear bearing manufacturer and supplier in China, we also offer adjustable type linear bearing, round flange mount linear bearing, SC-UU slide block, SHF horizontal shaft support, and much more.
The LM-UU linear motion bearing is manufactured in line with Asia's mechanical standards, so that it is suitable for use in Asia. The products we offer include many models with the applicable shaft nominal diameter ranging from 3mm to 150mm. They differ in the main dimensions and tolerances, the degree of eccentricity, the maximum radial clearance, and the rated load. Therefore, this linear bearing for Asia market can be used in different sizes and models of machinery, serving to reduce friction and extend life of the equipment.
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Wide Application of our Linear ball bearingfor example:
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