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Linear bushing LMH-L type (flange type, oval, long type)

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Volume Discount

The flange has an oval shape, resulting in a lower center height compared to the LMK-L type, allowing for a compact design.
Equipped with two standard retainers, making it ideal for locations with moment loads.
The ball arrangement of the linear bushing is designed so that two rows bear the load from the flat mounting direction, which improves lifespan performance.

Part Number

Configured Part Number is shown.

Product Specifications
Part Numbers
Catalog

Drawing

Specifications Table

Part number Standard type	Ball List	Main dimensions
		Inscribed circle diameter		Outer diameter		Length		Flange diameter		K	H	B	C	Mounting hole d₁ x d₂ x h
		dr	Tolerance	D	Tolerance	L	Tolerance	D₁	Tolerance	K	H	B	C	Mounting hole d₁ x d₂ x h
LMH 6 L	4	6	0 -0.010	12	0 -0.013	35	0 -0.3	28	0 -0.2	18	5	20	-	3.4 x 6.5 x 3.3
LMH 8 L	4	8		15	0 -0.013	45		32		21	5	24	-	3.4 x 6.5 x 3.3
LMH 10 L	4	10		19	0 -0.016	55		39		25	6	29	-	4.5 x 8 x 4.4
LMH 12 L	4	12		21		57		42		27	6	32	-	4.5 x 8 x 4.4
LMH 13 L	4	13		23		61		43		29	6	33	-	4.5 x 8 x 4.4
LMH 16 L	5	16		28		70		48		34	6	31	22	4.5 x 8 x 4.4
LMH 20 L	5	20	0 -0.012	32	0 -0.019	80		54		38	8	36	24	5.5 x 9.2 x 5.4
LMH 25 L	6	25		40		112	0 -0.4	62		46	8	40	32	5.5 x 9.2 x 5.4
LMH 30 L	6	30		45		123	0 -0.4	74		51	10	49	35	6.6 x 11 x 6.5

Part number Standard type	Flange Perpendicularity μm	Eccentricity (Maximum) μm	Radial Clearance Tolerance μm	Standard rated load		Weight g
				C N	C₀ N
				C N	C₀ N
LMH 6 L	15	15	-5	324	529	27
LMH 8 L	15	15	-5	431	784	41
LMH 10 L	15	15	-5	588	1,100	72
LMH 12 L	15	15	-5	657	1,200	81
LMH 13 L	15	15	-7	814	1,570	105
LMH 16 L	15	15	-7	1,230	2,350	182
LMH 20 L	20	20	-9	1,400	2,750	217
LMH 25 L	20	20	-9	1,560	3,140	477
LMH 30 L	20	20	-9	2,490	5,490	575

Note: Since a resin retainer is incorporated, avoid use at temperatures exceeding 80°C.

Linear bushing LMH-L type (flange type, oval, long type) part number example

Note: If an oil hole is required, you can specify it by adding the symbol OH at the end of the part number.

Product Feature Details

Structure of Linear Bushing LM: UU Type

Linear bushings are used in combination with cylindrical LM shafts and are products that perform linear motion.
Since the load balls and LM shaft are in point contact, linear motion is achieved with minimal frictional resistance, resulting in smooth movement.
The outer housing is made of high carbon chrome bearing steel, and after heat treatment, the inner diameter and outer diameter are ground and finished.
Linear bushings are used in office equipment, medical devices, packaging machines, and other applications where there is a light load and no vibration or impact.
However, they cannot be used in applications where a load is applied in the rotating direction.

Compatibility
The linear bushing and LM shaft are compatible, allowing you to freely combine and use them as needed.

Low Noise
The standard type is equipped with a resin-molded retainer to keep the balls captive, enabling low-noise and smooth operation.

Wide Variety
A wide range of types is available, including standard type, clearance adjustment type, open type, long type, pilot flange type, and flange type LM case units, allowing you to select the most suitable model for your application.

Cautions and Prohibitions

Handling

(1) Disassembling each part may allow foreign matter to enter or reduce the assembly accuracy of each part, so do not disassemble.
(2) Do not drop or hit the linear bushing. It may cause injury or damage. In addition, please note that when shock was applied, the product may lose its function even though there is no visible damage to the external appearance.
(3) When handling the product, wear protective gloves, safety shoes, and the like as necessary to ensure safety.

Precautions for use

(1) Be careful to prevent cutting chip, coolant, or other contaminant from entering. Otherwise, it may cause damage.
(2) If the product is used in environments where cutting chip, coolant, corrosive solvents, water, etc. may enter the interior, avoid entry into the product by using bellows, cover, or similar protection.
(3) Avoid using the product at temperatures exceeding 80°C. If the temperature exceeds this level, resin and rubber parts may be deformed or damaged.
(4) If cutting chip or other contaminant adheres to the product, please clean it and then reapply lubricant.
(5) In cases of small stroke, it is difficult for an oil film to form on the contact surfaces between the rolling surface and the rolling element, which may cause fretting. Therefore, please use grease with excellent fretting resistance. Additionally, it is recommended to periodically move the stroke by approximately the length of the outer cylinder to help form an oil film on the rolling surface and rolling element.
(6) Do not forcibly drive positioning components (such as pins or keys) into the product. This may cause indentations on the rolling surfaces and result in loss of function.
(7) If the shaft is inserted at an angle, there is a possibility of contaminant ingress, damage to internal components, and the rolling element falling out.
(8) Using the product with the rolling element removed may cause early breakage.
(9) If the rolling element falls out, do not use the product as is; please contact THK.
(10) If the rigidity and accuracy of the mounting components are insufficient, the load on the bearing will be locally concentrated, and the bearing performance will be significantly reduced. Therefore, please thoroughly consider the rigidity and accuracy of the housing and base, as well as the strength of the fixing bolts.

Lubrication

(1) Wipe off the anti-rust oil thoroughly and apply lubricant before use.
(2) Avoid mixing different lubricants. Even if the thickener is the same type of grease, differences in additives and other components may have adverse effects on each other.
(3) When used in special environments such as locations subject to constant vibration, clean rooms, vacuum, or extreme low or high temperatures, please use grease suitable for the specifications and environment.
(4) When lubricating the product, apply lubricant directly to the rolling surface and perform several break-in strokes to ensure grease enters the interior.
(5) The consistency of the grease changes depending on the temperature. Please note that changes in consistency will also affect the sliding resistance of the linear bushing.
(6) After greasing, the mixing resistance of the grease may increase the sliding resistance of the linear bushing. Be sure to perform a break-in operation and allow the grease to fully spread before operating the machine.
(7) Immediately after greasing, excess grease may scatter around the area, so please wipe it off as needed before use.
(8) The properties of grease deteriorate and its lubrication performance declines over time, so it is necessary to inspect and replenish the grease according to usage frequency.
(9) Lubrication intervals vary depending on usage conditions and operating environment. Please determine the final lubrication interval and amount based on actual machine operation.

Storage

Please store the linear bushing indoors, in THK's packaging and shipping configuration, avoiding high temperatures, low temperatures, and high humidity.

Disposal

Please dispose of the product appropriately as industrial waste.

: 30; 45; 60

Part Number
LMH13L
LMH16LUU
LMH25L

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Type	Inscribed Circle Dia. dr (Ø)	Overall Length L (mm)	Flange Type	Outer Sleeve Material	Outer Dia. D (Ø)	Accuracy	Ball Recirculating Type	Motion	Types	Length	Eccentricity (µm)	Basic Load Rating: Dynamic Load (Details) (N)	Basic Load Rating: Static Load (N)	Inscribed Circle Dia. Tolerance (Negative Side) (mm)	Flange Shape	Linear Motion / Rotational Motion	Basic Rated Load, Dynamic Rating (N)	Flange Shape	The material of a ball	Dust-proof Seal	W/ or w/o metal retainer
MYR 126.60	1 Piece(s)		5 Day(s) or more	-	Flange	13	61	Standard Flange	[Steel] Iron	23	High Grade	[Double] Long	Linear Motion	Flanged End Face	Long	15	814	1570	-0.01	-	-	-	Round-shaped, 2 Set Screw Flats	Iron	No	No
MYR 146.81	1 Piece(s)	Available	10 Day(s) or more	10	Standard Flange	16	70	-	[Steel] Steel	28	-	-	-	-	-	-	-	-	-	Compact Flange	Linear Bushing (Linear Motion Only)	1230	-	Steel	With seal on both ends	Not Included
MYR 247.15	1 Piece(s)	Available	11 Day(s) or more	10	Flange	25	112	Standard Flange	[Steel] Iron	40	High Grade	[Double] Long	Linear Motion	Flanged End Face	Long	20	1560	3140	-0.012	-	-	-	Round-shaped, 2 Set Screw Flats	Iron	No	No

Product TOP

Basic Information

Outer Sleeve Surface Treatment	No	Lubrication Type	No	Operating Temperature Min(℃)	-15
Operating Temperature Max(℃)	80

Configure

3 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Type
- Flange
- Standard Flange
Clear
Inscribed Circle Dia. dr(Ø)
13

16

25
Clear
Overall Length L(mm)
61

70

112
Clear
Flange Type
- Standard Flange
Clear
Outer Sleeve Material
- Steel
  - Iron
  - Steel
Clear
Outer Dia. D(Ø)
23

28

40
Clear
Accuracy
- High Grade
Clear
Ball Recirculating Type
- Double
  - Long
Clear
Motion
- Linear Motion
Clear
Types
- Flanged End Face
Clear
Length
- Long
Clear
Eccentricity(µm)
15

20
Clear
Flange Shape
- Compact Flange
Clear
Linear Motion / Rotational Motion
- Linear Bushing (Linear Motion Only)
Clear
Basic Rated Load, Dynamic Rating(N)
1230
Clear
Flange Shape
- Round-shaped, 2 Set Screw Flats
Clear
The material of a ball
- Iron
- Steel
Clear
Dust-proof Seal
- No
- With seal on both ends
Clear
W/ or w/o metal retainer
- No
- Not Included
Clear
type
- LMH-L
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

5 Day(s) or Less

10 Day(s) or Less

11 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Linear bushing LMH-L type (flange type, oval, long type)

Drawing

Specifications Table

Product Feature Details

Cautions and Prohibitions

Handling

Precautions for use

Lubrication

Storage

Disposal

Basic Information

Configure

Specification/Dimensions

Type

Inscribed Circle Dia. dr(Ø)

Overall Length L(mm)

Flange Type

Outer Sleeve Material

Outer Dia. D(Ø)

Accuracy

Ball Recirculating Type

Motion

Types

Length

Eccentricity(µm)

Flange Shape

Linear Motion / Rotational Motion

Basic Rated Load, Dynamic Rating(N)

Flange Shape

The material of a ball

Dust-proof Seal

W/ or w/o metal retainer

type

CAD

Days to Ship

Specify Alterations

Additional Products in this Category

Customers Who Viewed This Item Also Viewed

Tech Support

Payment Method

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MISUMI Contact 9am – 6pm (Mon – Fri) * Order cut-off time is 5pm, 9am – 1pm(Sat) * Order cut-off time is 12pm