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Linear Bushings - Double (LMUWMF20G)

Linear Bushings - Double LMUWMF20G

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Linear Bushings - Double
The linear bushing supports and guides a load, enabling smooth and accurate linear motion along a specified path. It provides a variety of sizes to choose from.
[Feature]
● Support Shaft Diameter Minimum/Maximum (mm.): 3 and 50
● Overall Length Minimum/Maximum (mm.): 19 and 192
● Shape : Straight
● Ball Recirculating Type : Double
● Material:
- Outer Cylinder - SUJ2 Equivalent or SUS440C Equivalent
- Ball - SUJ2 Equivalent or SUS440C Equivalent
[Application]
It is used in industrial machinery such as conveyor systems, packaging machines, and robotic equipment.

(i)Caution

  • Delivery times for some of our products may be delayed as national government authorities have imposed limit of capacity at our production sites.

Dimensional Drawing

(With Seal)

Linear Bushing - Straight, Double: Related Image
D1, W Dimensional Tolerance
Dimension
Range
Tolerance
(mm)
OverOr less
0.53±0.1
36±0.1
630±0.2
30120±0.3
[ ! ]Compliant with JIS B 0405 m (Medium Class).
TypeOuter CylinderBallsRetainerOperating Ambient TemperatureSealSeal Material and
Operating Temperature Range
[M] Material[H] Hardness[S] Surface Treatment[M] Material[M] Material
LMUWSUJ2 Equivalent58HRC or moreSUJ2 EquivalentPlastic (Duracon M90 Equivalent)-20 to 80°CWith SealNitrile Rubber
(-20 to 120°C)
LMUW−NNo Seal
LMUWFStainless Steel (SUS)-20 to 110°CWith Seal
LMUWRLow Temperature Black Chrome PlatingSUS440C EquivalentPlastic (Duracon M90 Equivalent)-20 to 80°CWith Seal
LMUWMElectroless Nickel PlatingWith Seal
LMUWM−NNo Seal
LMUWMFStainless Steel (SUS)-20 to 110°CWith Seal
SLMUWSUS440C Equivalent56HRC or morePlastic (Duracon M90 Equivalent)-20 to 80°CWith Seal
SLMUWSStainless Steel (SUS)-20 to 120°CWith Seal

Specification Table

Part Number
 LMUW20 
 LMUW−N20(No Seal)
Linear Bushing - Straight, Double: Related ImageLMUWR20(Low Temperature Black Chrome Plating)
Linear Bushing - Straight, Double: Related ImageLMUWR20L(L Type Greased)
Linear Bushing - Straight, Double: Related ImageLMUWR20G(G Type Greased)
Linear Bushing - Straight, Double: Related ImageLMUWR20H(H Type Greased)
[ ! ] Alternative grease types available.For performance, see the "Grease Performance Table" below.
drD ToleranceLBWD1(r)Eccentricity
(Max.)
Balls
Rows
Basic Load RatingAllowable Static Moment (N⋅m)
(N⋅m)
Mass
(g)
 Tolerance No Surface TreatmentSurface Treatment Tolerance ToleranceC (Dynamic) NCo (Static) N
3 0
-0.010
7 0
-0.011
 0
-0.015
190
-0.3
0.30.01041382100.513.2
48231762540.634.8
5102818.20
-0.5
1.19.60.42634121.3811
612 0
-0.013
 0
-0.018
3524.811.50.0153245292.1816
8154532.814.34317844.3131
1019 0
-0.016
 0
-0.021
5541.41.31858811007.2462
12215743.4200.8657120010.980
13236122813157011.690
16287049.81.6271230235019.7145
20 0
-0.012
32 0
-0.019
 0
-0.025
8057.80
-0.6
30.50.02051400274026.8180
25401120
-0.4
78.31.85381.561560314043.4440
304512385.3432490549082.8480
35 0
-0.015
52 0
-0.022
 0
-0.030
13594.82.1490.02526506270110795
4060151116.857343080401471170
5080192142.82.676.56080159003973100
[!] Anti-rust oil is applied at the time of delivery. [!] Dr = 3 or 4 is not available for LMUW-N, LMUWM-N, and LMUWR.
[!] No seal supplied for dr = 3 or 4. [!] No Seal Type has lower sliding resistance (0.4 ~ 1.2 N) and slides smoothly. Separate dust-proofing measures are necessary to keep the dust entering into sliding parts.
" ! " There are 2 engraving types for products without seals. Example: Part Number: For LMUW−N10, it will be either LMUW−N10 or LMUW10−N.
Grease coating
By selecting the grease below, change to the product with grease coating is available.
TypeProduct NameMain Features
A TypeAlvania Grease S2 (by Showa Shell Sekiyu)General-purpose grease suitable for various grease lubrication locations.
Y TypeAFF (Made by THK Co., Ltd.)Grease with less particles, stable rolling resistance, and excellent fretting resistance.
G TypeLG2 (Made by NSK Ltd.)Grease with less particles, excellent wear and rust resistance.
L TypeET-100K (Made by KYODO YUSHI Co., Ltd.)Superior heat resistance and oxidation stability. Also high adhesion and cohesion with limited splash or leakage.
H TypeFGL (Lubriplate)Suitable for lubrication of equipment used in food, beverage and pharmaceutical industries. (NSF H-1 Reg. No. 043534)
[ ! ] Grease coating cannot be selected for the Type without seal.
Grease Performance Table (Reference Value)
ItemConditionsUnitMeasurement MethodA TypeY TypeG TypeL TypeH Type
ThickenerLithium TypeLithium TypeLithium TypeAromatic DiureaAluminum Complex Soap
Base OilMineral OilFine Synthetic OilMineral Oil + Synthetic Hydrocarbon OilEther Synthetic OilUSP White Oil
Base Oil
Kinematic Viscosity
40°Cmm2/sJIS K2220 2313110032105 (ASTMD-445)
100°C12.25.411.5 (ASTMD-445)
Worked PenetrationJIS K2220 7283315199280310 (ASTMD-217)
Dropping Point°CJIS K2220 8181220201260 <238 (ASTMD-217)
Evaporation Amount99°C × 22 hrwt%JIS K2220 100.20.71.40.27 (ASTMD−972)
Oil Separation100°C × 24 hrwt%JIS K2220 112.42.60.81.22.1 (ASTMD−1742)
Operating Temp.In Air°C-25 ~120-40 ~ 120−20 ~ 70−40 ~ 200−12 ~ 177

Technical Information

[Fitting of Shaft O.D. and Bushing I.D.]
Reference: Tolerance range of MISUMI linear bushings I.D.
and shaft O.D. tolerance.

Dimension
(mm)
Linear Bushing
- Single Type (LMU)
I.D. Dimension Tolerance
Shaft (SFJ)
O.D. Dimension Tolerance (g6)
0φ3~5φ6~16φ20~30φ35~50      
-0.001      
-0.002φ3     
-0.003     
-0.004φ4~6    
-0.005φ8~10   
-0.006φ12~18  
-0.007φ20~30 
-0.008 
-0.009  φ35~50
-0.010   
-0.011    
-0.012    
-0.013      
-0.014      
-0.015       
-0.016       
-0.017       
-0.018        
-0.019        
-0.020        
-0.021         
-0.022         
-0.023         
-0.024         
-0.025         
 
For MISUMI linear bushings, use in combination with
MISUMI shafts (hardened with g6 tolerance) is recommended.

[Fitting of Bushing O.D. and Housing I.D.]
Reference: Tolerance range of linear bushings O.D.
and housing diameter made by MISUMI

 ProductCustomer's
design
I.D.
dr
Outer Dia. DHousing Diameter
 Tolerance ToleranceH7
37

0

-0.009
7+0.015

0

488
51010
612

0

-0.011
12+0.018

0

81515
1019

0

-0.013
19+0.021

0

122121
132323
162828
2032

0

-0.016
32+0.025

0

254040
304545
3552

0

-0.019
52+0.030

0

406060
508080
For MISUMI Linear Bushings, mounting
Housing of H7 tolerance is recommended.
Bushing and Housing will be clearance fit.

Part Number 

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Part Number
LMUWMF20G
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSInscribed Circle Dia. dr
(Ø)
Overall Length L
(mm)
Outer Sleeve Material Outer Sleeve Surface Treatment Outer Dia. D
(Ø)
Eccentricity
(µm)
Basic Load Rating: Dynamic Load (Details)
(N)
Basic Load Rating: Static Load
(N)
Inscribed Circle Dia. Tolerance (Negative Side)
(mm)
Ball Material Retainer Material Seal Greased Filled

713,318 IDR

1 Piece(s)Available 12 Day(s) or more 102080[Steel] SUJ2 Equivalent[Surface Treatment] Electroless Nickel Plating322014002740-0.012SUS440C EquivalentStainless SteelWith SealG Type (Low Dust Generation)

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  1. 1

App. Example

Linear Bushing - Straight, Double: Related Image

▲ Inspection instrument to confirm the precision of workpiece hole

 

Basic Information

Type Straight Style Standard Lubrication Type Not Provided
Accuracy High Grade Ball Recirculating Type Double Motion Linear
Types Straight

Please check the type/dimensions/specifications of the part LMUWMF20G in the Linear Bushings - Double series.

Products like this...

Part Number
LMUW-N16
LMUW-N20
LMUW-N25
LMUWMF20H
LMUWMF20L
LMUWMF25
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSInscribed Circle Dia. dr
(Ø)
Overall Length L
(mm)
Outer Sleeve Material Outer Sleeve Surface Treatment Outer Dia. D
(Ø)
Eccentricity
(µm)
Basic Load Rating: Dynamic Load (Details)
(N)
Basic Load Rating: Static Load
(N)
Inscribed Circle Dia. Tolerance (Negative Side)
(mm)
Ball Material Retainer Material Seal Greased Filled

135,780 IDR

1 Piece(s)Available 8 Day(s) or more 101670[Steel] SUJ2 EquivalentNo Surface Treatment281512302350-0.01SUJ2 EquivalentPlastic (Duracon M90 Equivalent)No SealNot Provided

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1 Piece(s)Available 8 Day(s) or more 102080[Steel] SUJ2 EquivalentNo Surface Treatment322014002740-0.012SUJ2 EquivalentPlastic (Duracon M90 Equivalent)No SealNot Provided

254,347 IDR

1 Piece(s)Available 8 Day(s) or more 1025112[Steel] SUJ2 EquivalentNo Surface Treatment402015603140-0.012SUJ2 EquivalentPlastic (Duracon M90 Equivalent)No SealNot Provided

713,318 IDR

1 Piece(s)Available 12 Day(s) or more 102080[Steel] SUJ2 Equivalent[Surface Treatment] Electroless Nickel Plating322014002740-0.012SUS440C EquivalentStainless SteelWith SealH Type (For Food, Drinking Water)

713,318 IDR

1 Piece(s)Available 12 Day(s) or more 102080[Steel] SUJ2 Equivalent[Surface Treatment] Electroless Nickel Plating322014002740-0.012SUS440C EquivalentStainless SteelWith SealL Type (Heat Resistant)

527,818 IDR

1 Piece(s)Available 8 Day(s) or more 1025112[Steel] SUJ2 Equivalent[Surface Treatment] Electroless Nickel Plating402015603140-0.012SUS440C EquivalentStainless SteelWith SealNot Provided

Tech Support

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Tel:021-8990-4102 / FAX:021-8990-5803
8:30am - 5:30pm (Monday - Friday)