Linear Ball Bearings -Linear Motion

Linear Motion System

linear ball bearings

Linear ball bearings are a linear motion system produced at low cost, used in conjunction with a cylindrical shaft with an infinite stroke. It is widely used in sliding parts of precision machine tools, textile machinery, food packaging machinery, printing machinery and other industrial machinery.

Linear ball bearings can be devided into three types:

Standard type
Round flange type
Square flange type

Versions of linear ball bearings

standard type

LM,LM-AJ,LM-OP
LME,LME-AJ,LME-OP
LM-L

round flange type

LMF
LMF-L

square flange type

LMK
LMK-L

LM,LM-AJ,LM-OP

Model No.			Ball rows	Main
Standard type	Clearance- adjustable type	Open type		Inscribed bore diameter			Outer diameter		Length
				dr	Tolerance		D	Tolerance High/Precision	L	Tolerance
				dr	High	Precision	D	Tolerance High/Precision	L	Tolerance
LM 3	—	—	4	3	0 –0.008	0 –0.005	7	0 –0.009	10	0 –0.12
LM 4	—	—	4	4			8		12
LM 5	—	—	4	5			10		15
LM 6	LM 6-AJ	—	4	6	0 –0.009	0 –0.006	12	0 –0.011	19	0 –0.2
LM 8S	LM 8S-AJ	—	4	8			15		17
LM 8	LM 8-AJ	—	4	8			15		24
LM 10	LM 10-AJ	—	4	10			19	0 –0.013	29
LM 12	LM 12-AJ	—	4	12			21		30
LM 13	LM 13-AJ	LM 13-OP	4	13			23		32
LM 16	LM 16-AJ	LM 16-OP	5	16			28		37
LM 20	LM 20-AJ	LM 20-OP	5	20	0 –0.010	0 –0.007	32	0 –0.016	42
LM 25	LM 25-AJ	LM 25-OP	6	25			40		59	0 –0.3
LM 30	LM 30-AJ	LM 30-OP	6	30			45		64
LM 35	LM 35-AJ	LM 35-OP	6	35	0 –0.012	0 –0.008	52	0 –0.019	70
LM 40	LM 40-AJ	LM 40-OP	6	40			60	0 –0.019	80
LM 50	LM 50-AJ	LM 50-OP	6	50			80	0 –0.022	100
LM 60	LM 60-AJ	LM 60-OP	6	60	0 –0.015	0 –0.009	90	0 –0.022	110

LME,LME-AJ,LME-OP

Model No.			Ball rows	Main
Standard type	Clearance- adjustable type	Open type		Inscribed bore diameter		Outer diameter		Length
Standard type	Clearance- adjustable type	Open type		dr	Tolerance	D	Tolerance	L	Tolerance
LME 5	LME 5-AJ	—	4	5	+0.008 0	12	0 –0.008	22	0 –0.2
LME 8	LME 8-AJ	—	4	8		16	0 –0.008	25
LME 12	LME 12-AJ	—	4	12		22	0 –0.009	32
LME 16	LME 16-AJ	LME 16-OP	5	16	+0.009 –0.001	26	0 –0.009	36
LME 20	LME 20-AJ	LME 20-OP	5	20	+0.009 –0.001	32	0 –0.011	45
LME 25	LME 25-AJ	LME 25-OP	6	25	+0.011 –0.001	40		58	0 –0.3
LME 30	LME 30-AJ	LME 30-OP	6	30	+0.011 –0.001	47		68
LME 40	LME 40-AJ	LME 40-OP	6	40	+0.013 –0.002	62	0 –0.013	80
LME 50	LME 50-AJ	LME 50-OP	6	50		75	0 –0.013	100
LME 60	LME 60-AJ	LME 60-OP	6	60		90	0 –0.015	125	0 –0.4
LME 80GA	LME 80GA-AJ	LME 80GA-OP	6	80	+0.016 –0.004	120	0 –0.015	165	0 –0.4

LM-L

Model No. Standard type	Ball rows	Main
		Inscribed bore diameter		Outer diameter		Length
		dr	Tolerance	D	Tolerance	L	Tolerance
LM 3L	4	3	0 –0.010	7	0 –0.013	19	0 –0.3
LM 4L	4	4		8		23
LM 5L	4	5		10		29
LM 6L	4	6		12		35
LM 8L	4	8		15		45
LM 10L	4	10		19	0 –0.016	55
LM 12L	4	12		21		57
LM 13L	4	13		23		61
LM 16L	5	16		28		70
LM 20L	5	20	0 –0.012	32	0 –0.019	80
LM 25L	6	25		40		112	0 –0.4
LM 30L	6	30		45		123
LM 35L	6	35	0 –0.015	52	0 –0.022	135
LM 40L	6	40		60		154
LM 50L	6	50		80		192
LM 60L	6	60	0 –0.020	90	0 –0.025	211

LMF

Model No. Standard type	Ball rows	Main dimensions
		Inscribed bore diameter		Outer diameter		Length		Flange diameter
		dr	Tolerance	D	Tolerance	L	Tolerance	D1	Tolerance
LMF 6	4	6	0 –0.009	12	0 –0.011	19	0 –0.2	28	0 –0.2
LMF 8S	4	8		15		17		32
LMF 8	4	8		15		24		32
LMF 10	4	10		19	0 –0.013	29		39
LMF 12	4	12		21		30		42
LMF 13	4	13		23		32		43
LMF 16	5	16		28		37		48
LMF 20	5	20	0 –0.010	32	0 –0.016	42		54
LMF 25	6	25		40		59	0 –0.3	62
LMF 30	6	30		45		64		74
LMF 35	6	35	0 –0.012	52	0 –0.019	70		82
LMF 40	6	40		60		80		96	0 –0.3
LMF 50	6	50		80		100		116
LMF 60	6	60	0 –0.015	90	0 –0.022	110		134

LMF-L

Model No. Standard type	Ball rows	Main dimensions
		Inscribed bore diameter		Outer diameter		Length		Flange diameter
		dr	Tolerance	D	Tolerance	L	Tolerance	D1	Tolerance
LMF 6L	4	6	0 –0.010	12	0 –0.013	35	0 –0.3	28	0 –0.2
LMF 8L	4	8		15	0 –0.013	45		32
LMF 10L	4	10		19	0 –0.016	55		39
LMF 12L	4	12		21		57		42
LMF 13L	4	13		23		61		43
LMF 16L	5	16		28		70		48
LMF 20L	5	20	0 –0.012	32	0 –0.019	80		54
LMF 25L	6	25		40		112	0 –0.4	62
LMF 30L	6	30		45		123		74
LMF 35L	6	35	0 –0.015	52	0 –0.022	135		82
LMF 40L	6	40		60		154		96	0 –0.3
LMF 50L	6	50		80		192		116
LMF 60L	6	60	0 –0.020	90	0 –0.025	211		134

LMK

Model No. Standard type	Ball rows	Main dimensions
		Inscribed bore diameter		Outer diameter		Length		Flange diameter
		dr	Tolerance	D	Tolerance	L	Tolerance	D1	Tolerance
LMK 6	4	6	0 –0.009	12	0 –0.011	19	0 –0.2	28	0 –0.2
LMK 8S	4	8		15		17		32
LMK 8	4	8		15		24		32
LMK 10	4	10		19	0 –0.013	29		39
LMK 12	4	12		21		30		42
LMK 13	4	13		23		32		43
LMK 16	5	16		28		37		48
LMK 20	5	20	0 –0.010	32	0 –0.016	42		54
LMK 25	6	25		40		59	0 –0.3	62
LMK 30	6	30		45		64		74
LMK 35	6	35	0 –0.012	52	0 –0.019	70		82
LMK 40	6	40		60		80		96	0 –0.3
LMK 50	6	50		80		100		116
LMK 60	6	60	0 –0.015	90	0 –0.022	110		134

LMK-L

Model No. Standard type	Ball rows	Main dimensions
		Inscribed bore diameter		Outer diameter		Length		Flange diameter
		dr	Tolerance	D	Tolerance	L	Tolerance	D1	Tolerance
LMK 6L	4	6	0 –0.010	12	0 –0.013	35	0 –0.3	28	0 –0.2
LMK 8L	4	8		15	0 –0.013	45		32
LMK 10L	4	10		19	0 –0.016	55		39
LMK 12L	4	12		21		57		42
LMK 13L	4	13		23		61		43
LMK 16L	5	16		28		70		48
LMK 20L	5	20	0 –0.012	32	0 –0.019	80		54
LMK 25L	6	25		40		112	0 –0.4	62
LMK 30L	6	30		45		123		74
LMK 35L	6	35	0 –0.015	52	0 –0.022	135		82
LMK 40L	6	40		60		154		96	0 –0.3
LMK 50L	6	50		80		192		116
LMK 60L	6	60	0 –0.020	90	0 –0.025	211		134

application of linear ball bearings

Electronic equipment
Food Machinery
Packaging Machinery
Medical machinery
Printing machines
Textile machinery
Robot
Machine tools
Automotive