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Linear Ball Bushings

Technical Information【LINEAR BALL BUSHINGS】

TYPE

Straight
Flange
Housings
Related Components
Standard Flange
Center Flange
Pilot Flange

14 items

: 30; 45; 60

Linear Ball Bushings - Single. LM Series.

THK

This linear bushing has an outer diameter formed by a highest-precision cylinder, and is used in a wide range of applications.
Part of the milli series, the most widely used series in Japan.

Volume Discount

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Single Type. LMU/SLMU Series.

MISUMI

New grease options (Type A: Alvania Grease S2, Type Y: AFF by THK) and more of no seal types are added. [3/31/23]
The most standard type in linear ball bushing products.

Volume Discount

METRIC

inCAD Components

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Single. LME Series.

THK

This linear bushing has an outer diameter formed by a highest-precision cylinder, and is used in a wide range of applications. It is part of the milli size series, which is in general use in Europe.

Volume Discount

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Short.

MISUMI

New grease options (Type A: Alvania Grease S2, Type Y: AFF by THK) and more of electroless Ni-plated types are added. [3/31/23]
Since the O.A.L. are shorter than the Single Type, space saving designing in L direction is possible.

Volume Discount

METRIC

inCAD Components

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Single. LM-GA Series (With metal retainers).

THK

[Features]
· Standard type. Equivalent to LM type of widely used milli size series, but including metal retainer.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - Double, special length.

MISUMI

New grease options (Type A: Alvania Grease S2, Type Y: AFF by THK) are added. [3/31/23]
Full Length is 1.5 times of Single and Allowable Moment 4.3 times. Suitable for insufficient space for Double Type

Volume Discount

METRIC

inCAD Components

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Linear/Rotating, single, with seals. Series ST-UU, ST-UUB.

THK

Hardened shaft, recommended for use with outer diameter tolerance (k5, m5, n5 or p5).

[Features]
· [Extremely low friction coefficient] Enables rotation with extremely low friction coefficient (=0.0006 to 0.0012) due to point contacts between the balls and ball rolling surface, and the separation of the balls within the ball cage.
· [Compact-design] Since the cross-sectional profile is simply the combination of the thin-walled outer cylinder and the balls, the outer diameter of this bearing is small and it is suitable for lightweight and space-saving compact designs.
· [High accuracy and low price] The sliding parts can be manufactured at low cost and a high level of accuracy is obtained.

Volume Discount

CAD ：

2D / 3D
Days to Ship: Same day or more

Show Stock Products
Linear Ball Bushings - Single/Double, compact.

MISUMI

New grease options (Type A: Alvania Grease S2, Type Y: AFF by THK) and more of electroless Ni-plated types are added. [3/31/23]
2mm smaller in O.D. (D dimension) than Standard Type.

Volume Discount

METRIC

inCAD Components

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Double, long, LM-L type.

THK

With 2 standard retainers embedded, this product is optimal for sites subject to moment loads and reduces assembly time.

Volume Discount

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Single. LM-MG Series (Stainless Steel).

THK

This linear bushing has an outer diameter formed by a highest-precision cylinder, and is used in a wide range of applications. Part of the milli series, the most widely used series in Japan.

Volume Discount

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - Single (economy model). LM Series.

Ozak Seiko

It is the most common single bushing, with configurable dimensions in millimeters. Available in hardened carbon steel with or without dust seals. The economical series is ideal for cost reduction.

Volume Discount
Days to Ship: 8 Days or more
Linear Ball Bushings - Single/Double, with MX lubrication unit.

MISUMI

Electroless Ni-plated types are added as new. [3/31/2023]
Automatic Lubricateion drastically decreases Maintenance Frequency Maintenance Cost Reduction Realizable Product

Volume Discount

METRIC

inCAD Components

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - Linear/Rotating, single, no seals. ST, ST-B Series.

THK

Hardened shaft, recommended for use with outer diameter tolerance (k5, m5, n5 or p5).

[Features]
· In the ST type, the balls and ball cage are embedded in the inner side the of outer cylinder, which has been precision ground to ensure a cylindrical form
· The balls are arranged in a staggered form to that the load is equally distributed
· The ball cage is a machined cage made out of lightweight and highly rigid light alloy.
· A slide ring and retainer ring are provided on two sides of the internal diameter of the outer cylinder to prevent overrun of the ball cage.
· With this structure, it is possible to achieve rotating, linear and mixed action with a low friction coefficient.
· Stroke length can be up to double the range of movement of the ball cage within the outer cylinder
· Suitable for a wide range of applications where it is necessary to obtain high accuracy at a low price, including the ink roll parts of a printing machine, the work chuck of a punching press work, press feeders, the work head of an electric discharge machine, the correction device of a take-up roll, textile machines, strain measuring equipment, optical measuring device spindle, copiers, etc.
· Enables rotation with extremely low friction coefficient (=0.0006 to 0.0012) due to point contacts between the balls and ball rolling surface, and the separation of the balls within the ball cage.
· Since the cross-sectional profile is simply the combination of the thin-walled outer cylinder and the balls, the outer diameter of this bearing is small and it is suitable for lightweight and space-saving compact designs.

Volume Discount

CAD ：

2D / 3D
Days to Ship: Same day or more

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Linear Ball Bushings - With lubrication holes, simple. L-OH Series.

Ozak Seiko

Standard type ball bushing with lubrication holes that allow for easier and more constant lubricant replenishment, which will improve its performance and life time. Available in hardened carbon steel with the possibility of adding an anti-rust treatment with a greater effect than stainless steel. Ideal bushing if cost savings in maintenance are required.

Volume Discount

CAD ：

2D
Days to Ship: 12 Days or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	8 Days or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	Same day or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	Same day or more

Days to Ship:	12 Days or more


Brand
Product Series
CAD
Days to Ship
Specifications
TYPE
Motion
Style
Outer Cylinder Material
Outer Cylinder Surface Finish
For Shaft Size(mm)
For Shaft Size(inch)
Overall Length L(mm)
Overall Length L(inch)
Flange Type
Lubrication Type
O.D. D(mm)
O.D. D(inch)
Type
Length
Ball Recirculating Type
Precision
Eccentricity(µm)


Brand	THK	MISUMI	THK	MISUMI	THK	MISUMI	THK	MISUMI	THK	THK	Ozak Seiko	MISUMI	THK	Ozak Seiko
Product Series	Linear Ball Bushings - Single. LM Series.	Linear Ball Bushings - Single Type. LMU/SLMU Series.	Linear Ball Bushings - Single. LME Series.	Linear Ball Bushings - Short.	Linear Ball Bushings - Single. LM-GA Series (With metal retainers).	Linear Ball Bushings - Double, special length.	Linear Ball Bushings - Linear/Rotating, single, with seals. Series ST-UU, ST-UUB.	Linear Ball Bushings - Single/Double, compact.	Linear Ball Bushings - Double, long, LM-L type.	Linear Ball Bushings - Single. LM-MG Series (Stainless Steel).	Linear Ball Bushings - Single (economy model). LM Series.	Linear Ball Bushings - Single/Double, with MX lubrication unit.	Linear Ball Bushings - Linear/Rotating, single, no seals. ST, ST-B Series.	Linear Ball Bushings - With lubrication holes, simple. L-OH Series.
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D		2D / 3D	2D / 3D	2D
Days to Ship	Same day or more Show Stock Products	Same day or more Show Stock Products	Same day or more Show Stock Products	Same day or more Show Stock Products	8 Days or more	Same day or more Show Stock Products	Same day or more Show Stock Products	Same day or more Show Stock Products	Same day or more Show Stock Products	Same day or more Show Stock Products	8 Days or more	8 Days or more	Same day or more Show Stock Products	12 Days or more
Specifications		METRIC inCAD Components		METRIC inCAD Components		METRIC inCAD Components		METRIC inCAD Components				METRIC inCAD Components
TYPE	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight
Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear/Rotary	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear/Rotary	Linear Motion
Style	Standard	Standard	-	Standard	-	Standard	-	Standard	-	-	Standard	Standard	-	Standard
Outer Cylinder Material	Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel	Steel	Steel	-	Steel	Steel / Stainless Steel	Stainless Steel	Steel	Steel	-	Steel
Outer Cylinder Surface Finish	-	None / Plated	-	None	-	None / Plated	-	None	-	-	None	None	-	None / Plated
For Shaft Size(mm)	3 ～ 60	3 ～ 50	5 ～ 80	6 ～ 20	6 ～ 100	6 ～ 30	8 ～ 100	6 ～ 16	3 ～ 50	3 ～ 40	6 ～ 60	10 ～ 50	6 ～ 100	6 ～ 50
For Shaft Size(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Overall Length L(mm)	10 ～ 110	10 ～ 192	22 ～ 165	16 ～ 35	17 ～ 175	29 ～ 90	24 ～ 100	19 ～ 70	19 ～ 192	10 ～ 80	19 ～ 110	39 ～ 220	19 ～ 100	19 ～ 100
Overall Length L(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Flange Type	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Lubrication Type	Standard	Standard	Standard	Standard	Standard	Standard	-	Standard	Standard	Standard	Standard	With Lubrication Unit MX	-	Standard
O.D. D(mm)	7 ～ 90	7 ～ 80	12 ～ 120	12 ～ 32	12 ～ 150	12 ～ 45	15 ～ 130	10 ～ 26	7 ～ 80	7 ～ 60	12 ～ 90	19 ～ 80	12 ～ 130	12 ～ 80
O.D. D(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Type	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard
Length	Standard	Standard	Standard	Short	Standard	-	-	Standard	Long	Standard	Standard	Standard	-	Standard
Ball Recirculating Type	Single	Single / Double	Single	Single	Single	Double	-	Single / Double	Double	Single	Single	Single / Double	-	Single
Precision	High Grade / Precision Grade	High Grade	High Grade	High Grade	High Grade	High Grade	-	High Grade	High Grade	High Grade	High Grade	High Grade	-	High Grade
Eccentricity(µm)	4 ～ 25	8 ～ 25	12 ～ 20	12 ～ 15	12 ～ 30	15 ～ 20	-	12 ～ 15	10 ～ 25	8 ～ 20	-	12 ～ 25	-	-

Configure

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Specification/Dimensions

Motion
- Linear Motion
- Linear/Rotary
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Style
- Standard
- Open
Larger Image

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Outer Cylinder Material
- Steel
- Stainless Steel
- Aluminum
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Outer Cylinder Surface Finish
- None
- Plated
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Metric / Inch
- metric
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For Shaft Size(mm)
3

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5

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25

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38

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Drawing

Clear

For Shaft Size(inch)
0.19 in (3/16")

0.25 in (1/4")

0.38 in (3/8")

0.50 in (1/2")

0.63 in (5/8")

0.75 in (3/4")

1.00 in (1")

1.25 in (1-1/4")

1.50 in (1-1/2")

2.00 in (2")

2.50 in (2-1/2")

3.00 in (3")

4.00 in (4")
Clear

Overall Length L(mm)
10

12

13

15

16

17

18

19

20

22

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32

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184

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310
Drawing

Clear

Overall Length L(inch)
0.56 in (9/16")

0.75 in (3/4")

0.750 in (3/4")

0.875 in (7/8")

1.19 in

1.25 in (1-1/4")

1.250 in (1-1/4")

1.31 in (1-5/16")

1.375 in (1-3/8")

1.50 in (1-1/2")

1.500 in (1-1/2")

1.594 in (1-19/32")

1.625 in (1-5/8")

1.69 in

1.75 in (1-3/4")

1.875 in (1-7/8")

1.94 in

2.06 in

2.25 in (2-1/4")

2.250 in (2-1/4")

2.375 in (2-3/8")

2.625 in (2-5/8")

2.81 in

2.813 in (2-13/16")

2.88 in

3.00 in (3")

3.000 in (3")

3.094 in (3-3/32")

3.20 in

3.38 in

3.50 in (3-1/2")

3.63 in (3-5/8")

3.75 in (3-3/4")

3.95 in

4.00 in (4")

4.281 in (4-9/32")

4.50 in (4-1/2")

4.75 in (4-3/4")

5.00 in (5")

5.000 in (5")

5.33 in

5.688 in (5-11/16")

6.00 in (6")

7.50 in (7-1/2")

8.00 in (8")

9.00 in (9")
Clear

Flange Type
- Standard Flange
- Center Flanged
- Pilot Flanged
Larger Image

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Lubrication Type
- Standard
- Grease coating
- With Lubrication Unit MX
Clear

O.D. D(mm)
7

8

10

12

13

15

16

17

19

21

22

23

26

28

32

37

40

42

45

47

48

52

57

58

60

62

65

72

75

80

84

85

90

95

110

120

130

150
Drawing

Clear

O.D. D(inch)
0.375 in (3/8")

0.50 in (1/2")

0.5000 in (1/2")

0.625 in (5/8")

0.6250 in (5/8")

0.7500 in (3/4")

0.875 in (7/8")

0.8750 in (7/8")

1.125 in (1-1/8")

1.1250 in (1-1/8")

1.25 in (1-1/4")

1.2500 in (1-1/4")

1.56 in (1-9/16")

1.5625 in (1-9/16")

1.69 in

1.75 in (1-3/4")

2.00 in (2")

2.0000 in (2")

2.25 in (2-1/4")

2.375 in (2-3/8")

2.3750 in (2-3/8")

3.00 in (3")

3.62 in (3-5/8")

3.75 (3-3/4")

4.50 in (4-1/2")

6.00 in (6")
Clear

Type
- Standard
- Open
- Clearance Adjustment Type
- with End Flange
- with Center Flange
- with Pilot, End Flange
- Housing Type
- Pillow Blocks Wide Block Type
- Shaft-Sliding Linear Bushing Pillow Blocks
- Related Components
Images

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Length
- Standard
- Short
- Medium
- Double
- Medium Long
- Long
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Ball Recirculating Type
- Single
- Double
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Precision
- High Grade
- Precision Grade
See the precision standard of each manufacturer.

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Eccentricity(µm)
4

8

10

12

12.7(0.5 µin)

15

15.24(0.6 µin)

17

20

20.32(0.8 µin)

25

25.4(1 µin)

30
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