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THK Linear Ball Bushings

TYPE

Straight
Flange
Housings
Related Components
Standard Flange
Center Flange
Pilot Flange

25 items

: 30; 45; 60

Linear Ball Bushings - With round flange, single. LMF Series.

THK

The outer cylinder of the standard-type linear bushing and the flange are integrated and fitting is easily achieved by bolting directly to the housing.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
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

Show Stock Products
Linear Ball Bushings - With square flange, single. LMK Series.

THK

Type with LMF type flange having flats at 4 locations. Can be used in compact designs since the core height is lower than with the round flange type.

Volume Discount

CAD ：

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

Show Stock Products
Linear Ball Bushings - Compact flanged, long. LMH-L Series.

THK

Flange is oval-shaped. More suitable than the LMK-L type for compact designs due to lower core height.
With 2 standard retainers embedded, this product is optimal for sites subject to moment loads.
To lengthen the product life, the balls of the linear bushing are embedded in two races to support the load from the flats.

Volume Discount

CAD ：

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

Show Stock Products
Linear Ball Bushings - Bearing type, wide block. SC Series.

THK

Case unit has standard-type linear bushing embedded in small lightweight aluminum case. Can be mounted by simply bolting to table.

Volume Discount

CAD ：

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

Show Stock Products
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 - Compact flanged, single. LMH Series.

THK

The flange and outer cylinder are integrated and the flange is oval-shaped. This gives a lower core height, making this type more suitable for compact designs than the LMK type.
To lengthen the product life, the balls of the linear bushing are embedded in two races to support the load from the flats.

Volume Discount

CAD ：

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

Show Stock Products
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

Show Stock Products
Linear Ball Bushings - With square flange, long. LMK-L Series.

THK

Type with LMF-L type flange having flats at 4 locations. Due to a lower core height, this type is more suitable for compact designs than the round flange type.

Volume Discount

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

Show Stock Products
Linear Ball Bushings - With round flange, long type. LMF-L Series.

THK

The outer cylinder of the standard-type linear bushing and the flange are integrated and mounting is easily achieved by bolting directly to the housing.
With 2 standard retainers embedded, this product is optimal for sites subject to moment loads.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - Bearing type, wide block, long. SL Series.

THK

SC long type. The case unit has 2 standard type linear bushings embedded in an aluminum case.

Volume Discount

CAD ：

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

Show Stock Products
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
Felt seal - For FLM series linear ball bushings.

THK

Optimal if enhanced dust-proofing is required, or if the seal resistance is to be reduced.

Volume Discount
Days to Ship: Same day or more

Show Stock Products
Linear Ball Bushings - With central flange, double. LMC-L Series.

THK

[Features]
· Linear bushing of center flange type.
· Available in 3 types, round, rectangular and round chamfered. Each of these is also available as a long type.

Volume Discount
Days to Ship: 8 Days or more
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

Show Stock Products
Linear Ball Bushings - Compact, single bearing type. SH series.

THK

Case unit is based on LM case unit SC-type with standard linear bushing embedded in small lightweight aluminum case. Compared to the SC type, this type is more suited for compact designs. Any mounting direction is acceptable and lifetime performance is enhanced due to 2 races of load-bearing balls on the case upper face.

Volume Discount

CAD ：

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

Show Stock Products
Linear Ball Bushings - Round flanged, stainless steel, single. LMF-M Series.

THK

[Features]
· The outer cylinder of the standard-type linear bushing and the flange are integrated and mounting is easily achieved by bolting directly to the housing.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - With pilot flange, double. LMI/LMI-L Series.

THK

[Features]
· Pilot flange type linear bushing.
· Available in 3 types, round, rectangular and round with chamfering. Each of these is also available as a long type.

Volume Discount
Days to Ship: Same day or more

Show Stock Products
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

Show Stock Products
Linear Ball Bushings - With square flange, stainless steel, long. LMK-ML series.

THK

Type with LMF-L type flange having flats at 4 locations. Can be used in compact designs since the core height is lower than with the round flange type.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - Compact, double bearing type. SH-L Series.

THK

SH long type. The case unit has 2 standard type linear bushings embedded in an aluminum case.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - With round flange (stainless steel), long type. LMF-ML series.

THK

The outer cylinder of the standard-type linear bushing and the flange are integrated and mounting is easily achieved by bolting directly to the housing.
With 2 standard retainers embedded, this product is optimal for sites subject to moment loads.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - With square flange, stainless steel, single. LMK-M series.

THK

Type with LMF type flange having flats at 4 locations. Can be used in compact designs since the core height is lower than with the round flange type.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
Linear Ball Bushings - With light square flange. LMJK/LMJK-L Series.

THK

[Features]
· Uses high-strength reinforced plastic in flange portion to achieve a reduction in weight compared with the conventional metal flange type (maximum 25%)
· Contributes to weight reduction when mounted to movable parts.
· Reasonable price realized by replacing the metal of the reasonably priced flange with high-strength plastic.

Volume Discount
Days to Ship: 8 Days 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:	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:	8 Days 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:	8 Days 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:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

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Brand
Product Series
CAD
Days to Ship
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	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK
Product Series	Linear Ball Bushings - With round flange, single. LMF Series.	Linear Ball Bushings - Single. LM Series.	Linear Ball Bushings - With square flange, single. LMK Series.	Linear Ball Bushings - Compact flanged, long. LMH-L Series.	Linear Ball Bushings - Bearing type, wide block. SC Series.	Linear Ball Bushings - Linear/Rotating, single, with seals. Series ST-UU, ST-UUB.	Linear Ball Bushings - Compact flanged, single. LMH Series.	Linear Ball Bushings - Double, long, LM-L type.	Linear Ball Bushings - With square flange, long. LMK-L Series.	Linear Ball Bushings - Linear/Rotating, single, no seals. ST, ST-B Series.	Linear Ball Bushings - With round flange, long type. LMF-L Series.	Linear Ball Bushings - Bearing type, wide block, long. SL Series.	Linear Ball Bushings - Single. LM-GA Series (With metal retainers).	Felt seal - For FLM series linear ball bushings.	Linear Ball Bushings - With central flange, double. LMC-L Series.	Linear Ball Bushings - Single. LME Series.	Linear Ball Bushings - Compact, single bearing type. SH series.	Linear Ball Bushings - Round flanged, stainless steel, single. LMF-M Series.	Linear Ball Bushings - With pilot flange, double. LMI/LMI-L Series.	Linear Ball Bushings - Single. LM-MG Series (Stainless Steel).	Linear Ball Bushings - With square flange, stainless steel, long. LMK-ML series.	Linear Ball Bushings - Compact, double bearing type. SH-L Series.	Linear Ball Bushings - With round flange (stainless steel), long type. LMF-ML series.	Linear Ball Bushings - With square flange, stainless steel, single. LMK-M series.	Linear Ball Bushings - With light square flange. LMJK/LMJK-L 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 / 3D			2D / 3D	2D / 3D	2D / 3D		2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D
Days to Ship	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	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	8 Days or more	Same day or more Show Stock Products	8 Days or more	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	8 Days or more	Same day or more Show Stock Products	Same day or more Show Stock Products	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more
TYPE	Flange	Straight	Flange	Flange	-	Straight	Flange	Straight	Flange	Straight	Flange	-	Straight	-	-	Straight	-	-	-	Straight	Flange	-	-	-	-
Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear/Rotary	Linear Motion	Linear Motion	Linear Motion	Linear/Rotary	Linear Motion	Linear Motion	Linear Motion	-	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion	Linear Motion
Style	-	Standard / Open	-	-	Standard	-	-	-	-	-	-	Standard	-	Standard	Standard	-	Standard	-	Standard	-	Standard	Standard	-	-	-
Outer Cylinder Material	Steel	Steel	Steel	Steel	Steel / Stainless Steel	-	Steel	Steel / Stainless Steel	Steel	-	Steel	Steel / Stainless Steel	Steel	-	Steel	Steel	Steel	Stainless Steel	Steel	Stainless Steel	Steel	Steel	Stainless Steel	Stainless Steel	Steel
Outer Cylinder Surface Finish	-	-	-	-	-	-	-	-	-	-	-	-	-	-	None	-	-	-	-	-	-	-	-	-	-
For Shaft Size(mm)	6 ～ 60	3 ～ 60	6 ～ 60	6 ～ 30	6 ～ 50	8 ～ 100	6 ～ 30	3 ～ 50	6 ～ 60	6 ～ 100	6 ～ 60	6 ～ 30	6 ～ 100	-	6 ～ 25	5 ～ 80	3 ～ 20	6 ～ 30	6 ～ 25	3 ～ 40	6 ～ 30	3 ～ 20	6 ～ 30	6 ～ 30	8 ～ 25
For Shaft Size(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Overall Length L(mm)	17 ～ 110	10 ～ 110	17 ～ 110	35 ～ 123	25 ～ 110	24 ～ 100	19 ～ 64	19 ～ 192	35 ～ 211	19 ～ 100	35 ～ 211	48 ～ 140	17 ～ 175	-	35 ～ 112	22 ～ 165	13 ～ 44	17 ～ 64	19 ～ 112	10 ～ 80	35 ～ 123	23 ～ 86	35 ～ 123	17 ～ 64	24 ～ 112
Overall Length L(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Flange Type	-	-	Standard Flange	Standard Flange	-	-	Standard Flange	-	Standard Flange	-	-	-	-	-	Center Flanged	-	-	Standard Flange	Pilot Flanged	-	Standard Flange	-	Standard Flange	Standard Flange	Standard Flange
Lubrication Type	Standard	Standard	Standard	Standard	Standard	-	Standard	Standard	Standard	-	Standard	Standard	Standard	-	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard
O.D. D(mm)	12 ～ 90	7 ～ 90	12 ～ 90	12 ～ 45	-	15 ～ 130	12 ～ 45	7 ～ 80	12 ～ 90	12 ～ 130	12 ～ 90	-	12 ～ 150	-	12 ～ 40	12 ～ 120	-	12 ～ 45	12 ～ 40	7 ～ 60	12 ～ 45	-	12 ～ 45	12 ～ 45	15 ～ 40
O.D. D(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Type	with End Flange	Standard / Open / Clearance Adjustment Type	with End Flange	with End Flange	Pillow Blocks Wide Block Type	Standard	with End Flange	Standard	with End Flange	Standard	with End Flange	Pillow Blocks Wide Block Type	Standard / Open / Clearance Adjustment Type	Related Components	with Center Flange	Standard	Housing Type	with End Flange	with Pilot, End Flange	Standard	with End Flange	Housing Type	with End Flange	with End Flange	with End Flange
Length	Standard	Standard	Standard	Long	Standard	-	Standard	Long	Long	-	Long	Long	Standard	-	Long	Standard	Standard	Standard	Short / Long	Standard	Long	Long	Long	Standard	Standard / Long
Ball Recirculating Type	Single	Single	Single	Double	Single	-	Single	Double	Double	-	Double	Double	Single	-	Double	Single	Single	Single	Single / Double	Single	Double	Double	Double	Single	Single / Double
Precision	High Grade	High Grade / Precision Grade	High Grade	High Grade	High Grade	-	High Grade	High Grade	High Grade	-	High Grade	High Grade	High Grade / Precision Grade	-	-	High Grade	High Grade	High Grade	-	High Grade / Precision Grade	High Grade	High Grade	High Grade	High Grade	-
Eccentricity(µm)	12 ～ 25	4 ～ 25	12 ～ 25	15 ～ 20	-	-	12 ～ 15	10 ～ 25	15 ～ 25	-	15 ～ 25	-	8 ～ 30	-	12 ～ 15	12 ～ 20	-	12 ～ 15	12 ～ 20	8 ～ 20	15 ～ 20	-	15 ～ 20	12 ～ 15	12 ～ 20

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Specification/Dimensions

Motion
- Linear Motion
- Linear/Rotary
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Style
- Standard
- Open
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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)
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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")
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Overall Length L(mm)
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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")
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Flange Type
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Lubrication Type
- Standard
- Grease coating
- With Lubrication Unit MX
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O.D. D(mm)
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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")
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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
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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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