Linear Motion Bushing

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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)
Model	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	Dynamic Load Rating(N)	Static Load Rating(N)	Model	d(jβ6)	d(h6)	A	A1(-0.2)	A2	Dynamic Load Rating( N)	Static Load Rating( N)
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.