Linear Motion Bushing

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GTA Linear Motion Bushing

The open type GTA linear motion bushing has a small friction coefficient from 0.001 to 0.004, which makes for smooth motion and long service life. The linear motion bushing has an adjustable structure to fit the size of its mating parts, so the requirement on the accuracy of the mating parts is lowered. In addition, it operates in high speed motion and can realize flexible, accurate and smooth motion at low speed. The GTA linear motion bushing features easy and convenient lubrication, maintenance and replacement. It offers lower power consumption, making it energy saving. The rail shaft features high durability, lasting accuracy and reliable performance, as it is made of quality alloy steel that has undergone medium frequency induction quenching to reach HRC58-63 hardness.

The GTA linear motion bushings can have over two supporting bases for the rail shaft, if necessary. This design can eliminate the influence of rail shaft dead weight on the total height of ball bearing supporting bases and motion parallelism to achieve higher motion accuracy. The linear motion bushing is especially suitable for the use in long travel distance equipment.

Technical Specifications of the GTA Linear Motion Bushing
Model Sizes of the General Series (mm)
d(jβ6) d1 d2 D(h6) L L1 A A1(-0.2) A2 J J1 K C W W1 B B1
GTA13 13 5 5.8 23 ≤500 100 32 20.5 11 80 15 10 27 54 53 36 36
GTA16 16 5 5.8 28 ≤650 100 37 23.5 13 80 15 10 28 56 54 42 36
GTA20 20 6 7 32 ≤800 125 42 27.5 16 100 20 12.5 30 60 58 45 40
GTA25 25 6 7 40 ≤1000 125 59 37.5 24 100 20 12.5 35.5 71 68 56 40
GTA30 30 6 7 45 ≤1500 150 64 41 26 120 25 15 40 80 77 63 45
GTA35 35 8 9 52 ≤1800 150 70 45.5 28 120 25 15 45 90 87 71 53
GTA38 38 8 9 57 ≤2000 150 76 54.5 38 120 25 15 50 100 96 80 53
GTA40 40 8 9 60 ≤2000 150 80 56.5 38 120 25 15 50 100 96 80 53
GTA50 50 8 11 80 ≤2500 200 100 69 50 160 30 20 62.5 125 121 100 67
GTA60 60 8 11 90 ≤3000 200 110 79 56 160 30 20 70 140 135 110 67
GTA80 80 8 13.5 120 ≤3500 250 140 99.5 75 200 40 25 90 180 175 150 85
Sizes of the General Series Dynamic Load Rating(N) Static Load Rating(N) Model Sizes of the Special Series Dynamic Load Rating( N) Static Load Rating( N)
G G1 h H H1 H2 H3 M1x1 d(jβ6) d(h6) A A1(-0.2) A2
50 22 36 56 11 9 33 M5x8 260 480 GTA112 12 22 32 20.4 11 250 480
50 24 39 63 10 10 40 M5x14 420 720 GTA116 16 26 36 22.4 12 280 550
56 24 41 67 11 12 43 M6x14 550 920 GTA120 20 32 45 28.5 16 550 970
56 24 41 71 11 14 52 M6x14 870 1560 GTA125 25 40 58 40.5 26 870 1560
60 26 51 85 11 16 58 M8x16 1270 2150 GTA130 30 47 68 48.5 32 1270 2150
71 34 58 96 14 18 66 M8x16 1670 3040
71 34 58 100 14 20 73 M8x16 2050 3520
71 34 58 100 14 20 74 M8x18 2050 3520 GTA140 40 62 80 56.5 40 2050 3520
90 42 72 125 17 25 95 M12x25 4010 6950 GTA150 50 75 100 72.5 53 4010 6950
90 48 85 145 17 28 108 M12x25 4800 8030 GTA160 60 90 125 95.5 71 5190 8910
110 60 110 190 20 35 143 M12x25 8820 14210 GTA180 80 120 165 125.5 100 8820 14120

NOTE
1. The 4-d2 hole fastener uses the socket head cap screw.
2. The size of the screw can be tailored to customer requirement. Please specify it when you place the order.
3. The dynamic load rating and the static load rating refers to positive pressure
4. Customers can place special orders for the rail shaft, rail shaft supporting base and ball bearing supporting base, according to the requirements of different practical application.
5. As for other dimension series, please refer to the sizes of corresponding models in the general series.

YiGong is a specialized linear motion bushing manufacturer based in China. Our company offers a vast array of products, including water jet cutting machine, precision ball screw, linear motion spline, linear guide, and much more.

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