SAMICK | Housing and Shaft | Self-Aligning Linear Bushing


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> Structure and Special Feature

> Load Rating and Service Life Linear Motion System

> Factors that affect travel life

> Load Considertion

> Mean Effective Load at Varying Load

> SAMICK Support Rail Unit

> SAMICK LM Shaft

> SAMICK Shaft Support

> Self-Aligning Linear Bushing

> SAMICK LINEAR BUSHING

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> Referance Data

For SUPPERBALL's application, Houing is required. Tolerance of Housing bore will affect thelife and the accuracy of application. See the below Table However, of the tolerance of housing is H7, tight fiting can be occurred ay both ends of outer-sleeves in case LMES type.

Part number(mm)	LMES10	LMES12	LMES16	LMES20	LMES25	LMES30	LMES40	LMES50
Inner diameter(mm)	19	22	26	32	40	47	62	75
Tolorance(H7)	+0.021 0	+0.021 0	+0.021 0	+0.025 0	+0.025 0	+0.025 0	+0.030 0	+0.030 0
Part number(Inch)	LMBS4	LMBS6	LMBS8	LMBS10	LMBS12	LMBS16	LMBS20	LMBS24	LMBS32
Inner diameter(inch)	0.5	0.625	0.875	1.125	1.25	1.5625	2	2.375	3
Tolorance(H7)	0 +0.007	0 +0.007	0 +0.008	0 +0.008	0 +0.010	0 +0.010	0 +0.012	0 +0.012	0 +0.012

Because the balls in SAMICK SUPERBALL as rolling elements are running directly on the shaft surface, the hardness, surface finish, and tolercane of shaft will largely affcet on th etraveling performance of SUPERBALL. Tne shaft must be manufactured with following conditions:

1) Hardness

The hardness must be HRC 58 to 64. The shaft with hardness less than HRC58 will lead decreasing of travel life and permisssible load.

2) Surface Finishing

The surfacefinishing must be 0.6S or better for smooth operation.

3) Tolerance

The correct finishing must be 1.6S or better for smooth operation.

Part number(mm)	LMES10	LMES12	LMES16	LMES20	LMES25	LMES30	LMES40	LMES50
Inner diameter(mm)	10	12	16	20	25	30	40	50
Tolorance(h6)	0 -0.009	0 -0.011	0 -0.011	0 -0.013	0 -0.013	0 -0.013	0 -0.016	0 -0.016
Part number(Inch)	LMBS4	LMBS6	LMBS8	LMBS10	LMBS12	LMBS16	LMBS20	LMBS24	LMBS32
Inner diameter(inch)	0.25	0.375	0.500	0.625	0.750	1.000	1.250	1.500	2.000
Tolorance(g6)	-0.0002 -0.0006	-0.0002 -0.0006	-0.0002 -0.0007	-0.0002 -0.0007	-0.0003 -0.0008	-0.0003 -0.0008	-0.0004 -0.0010	-0.0004 -0.0010	-0.0004 -0.0012