Register
Configure
  • Stock
  • RoHS Information
  • Features, Areas of Application
  • [dr] Inner Diameter(mm)
  • [L] Length (Total)(mm)
  • Material of Outer Cylinder
  • Outer Cylinder Surface Treatment
  • Grease Coating
    • Grease coating
  • [D] Outer Diameter(mm)
  • Eccentricity(μm)
  • Basic Rated Load, Dynamic Rating(N)
  • Ball Material
  • Retainer Material
  • Seals
  • Counterbored Hole
  • Type
  • CAD
  • Est. shipping days
    • All
    • Same-day shipping possible
    • Within 9 working days
    • Within 14 working days
    • MISUMI

    Linear ball bearings / flange selectable / stainless steel, steel / treatment selectable / seal selectable

    Linear ball bearings / flange selectable / stainless steel, steel / treatment selectable / seal selectable

    Part number:

    Still undefined. 15 possible part numbers found.
    Quantity:

    Outline drawing and specifications table

    Dimensional Drawing

    Round Flange
    Square flange
    Compact Flange
    dr = 3 to 13
    dr = 16 to 50

    Product Specifications

    Counterbored HolesTypeOuter CylinderBallsRetainerOperating Ambient Temperature[A] Accessory
    Round FlangeSquare flangeCompact Flange[M] Material[H] Hardness[S] Surface Treatment[M] Material[M] Material
    Opposite CounterboredLHZRLHZSLHZCEN 1.3505 Equiv.58HRC or more—EN 1.3505 Equiv.Plastic (Duracon M90 Equivalent)−20 to 80°CSeal [M] Material
    Nitrile Rubber
    (－20 to 120°C)
    StandardLHFRLHFSLHFC
    LHFR−N
    No Seal    		LHFS−N
    No Seal    		LHFC−N
    No Seal
    LHFRFLHFSFLHFCFStainless Steel (Stainless Steel)−20 to 110°C
    LHFRRLHFSRLHFCRLow Temperature Black Chrome PlatingEN 1.4125 Equiv.Plastic (Duracon M90 Equivalent)−20 to 80°C
    LHFRMLHFSMLHFCMElectroless
    Nickel Plating
    LHFRM−N
    No Seal    		LHFSM−N
    No Seal    		LHFCM−N
    No Seal
    LHFRMFLHFSMFLHFCMFStainless Steel (Stainless Steel)−20 to 110°C
    SLHFRSLHFSSLHFCEN 1.4125 Equiv.56HRC or more—Plastic (Duracon M90 Equivalent)−20 to 80°C
    SLHFRSSLHFSSSLHFCSStainless Steel (Stainless Steel)−20 to 120°C

    Specification Table

    Part Number  
     LHFR8
     LHFR−N10
    Flanged Linear Bushing - Single, Opposite Counterbored Hole: Related Image LHFRR8
    Flanged Linear Bushing - Single, Opposite Counterbored Hole: Related Image LHFRR10L
     
    (No Seal)
    (Low Temperature Black Chrome Plating)
    (L Type Greased)
     

    [ ! ] Alternative grease types available.
    drD ToleranceLHTdd1tP.C.D.WFAEccentricity
    (Max.)
    * 1    		Balls
    Rows    		Perpendicularity
    * 2    		Basic Load RatingMass (g)
     Tolerance Surface Treatment
    Not Provided    		Surface Treatment
    Provided    		 ToleranceC (Dynamic) NCo (Static) NRound FlangeSquare flangeCompact Flange
    30
    −0.008    		70
    −0.011    		0
    −0.015    		10±0.3193.52.54.52.11315—130.00840.0086910575.16
    4812201416—148812786.27
    510152553.563.11720—17167206171314
    60
    −0.009    		120
    −0.013    		0
    −0.018    		19282022—200.0120.012206265241821
    81524322425—24265380372933
    10190
    −0.016    		0
    −0.021    		294064.57.54.12930—29372549725264
    122130423232—32412598765768
    132332433334—33510784887281
    16283748383722317751180120104112
    200
    −0.010    		320
    −0.019    		0
    −0.025    		425485.595.1434224360.01550.0158821370180145167
    254059625150324069801570340300325
    30456474106.6116.16058354915702740470375388
    350
    −0.012    		520
    −0.022    		0
    −0.030    		7082676438550.0200.02016703140650560575
    40608096139148.178754564216040201060880913
    50801001169892568038207940220020002037
    * 1. The maximum amount of misalignment between the center point of the outer diameter D and the center point of the inner diameter dr.
    * 2. Perpendicularity of D to flange mounting surface.
    [ ! ] Anti-rust oil is applied at the time of delivery.
    [ ! ] No seal supplied for dr = 3 or 4.
    [ ! ] There are 2 engraving types for products without seals. Example: Part Number: For LHFR-N10, it will be either LHFR-N10 or LHFR10-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 special hygienic requirements (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
    Thickener———Lithium TypeLithium TypeLithium TypeAromatic DiureaAluminum Complex Soap
    Base Oil———Mineral OilFine Synthetic OilMineral Oil + Synthetic Hydrocarbon OilEther Synthetic OilUSP White Oil
    Base Oil
    Kinematic Viscosity    		40°Cmm2/sJIS K2220 2313110032—105 (ASTM D-445)
    100°C12.2—5.4—11.5 (ASTM D-445)
    Worked Penetration——JIS K2220 7283315199280310 (ASTM D-217)
    Dropping Point—°CJIS K2220 8181220201260 <238 (ASTM D-217)
    Evaporation Amount99°C × 22 hrwt%JIS K2220 100.20.71.4—0.27 (ASTM D−972)
    Oil Separation100°C × 24 hrwt%JIS K2220 112.42.60.81.22.1 (ASTM D−1742)
    Operating Temp.In Air°C—-25 to 120-40 to 120−20 to 70−40 to 200−12 to 177

    Selection Supporting Information

    Fitting of Shaft O.D. and Bushing I.D.

    Fitting of Bushing O.D. and Housing I.D.

    Flanged Linear Bushing - Single, Opposite Counterbored Hole Fitting of Shaft O.D. and Bushing I.D.
    Flanged Linear Bushing - Single, Opposite Counterbored Hole Fitting of Bushing O.D. and Housing I.D.
    Reference: Tolerance range of MISUMI linear bushings I.D. and shaft O.D.
    Reference: Tolerance range of linear bushings O.D. and housing diameter made by MISUMI
               
    Dimensions (mm)Linear Bushings Single Type (LMU) I.D. ToleranceShaft (SFJ) O.D. Tolerance (g6)
    0⌀3 to 5⌀6 to 16⌀20 to 30⌀35 to 50      
    －0.001      
    －0.002⌀3     
    －0.003     
    －0.004⌀4 to 6    
    －0.005⌀8 to 10   
    －0.006⌀12 to 18  
    －0.007⌀20 to 30 
    －0.008 
    －0.009  ⌀35 to 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         
     
         
     ProductCustomer's design
    I.D.
    dr    		Outer Dia. DHousing Dia.
     Tolerance Tolerance H7
    370
    －0.009    		7+0.015
    0
    488
    51010
    6120
    －0.011    		12+0.018
    0
    81515
    10190
    －0.013    		19+0.021
    0
    122121
    132323
    162828
    20320
    －0.016    		32+0.025
    0
    254040
    304545
    35520
    －0.019    		52+0.030
    0
    406060
    508080
     
    For MISUMI linear bushings, use in combination with MISUMI shafts (hardened with g6 tolerance) is recommended.
    For MISUMI Linear Bushings, mounting Housing of H7 tolerance is recommended.
    Bushing and Housing will be clearance fit.

    Technical Information

    ■Calculation of Life

    • When the linear systems are in motion with loads, rolling surfaces and races are subject to repeated stress and will show stress-induced scaly damages called "flaking". The total run distance of a linear system until this flaking first appears is the life of a linear system.

    Rated life can be calculated using the formula below from the basic dynamic load rating and the actual load applied to the linear bushings.

    L = ( fH· fT· fCfw· CP )3· 50
    L: Rated Life (km)
    C: Basic Dynamic Load Rating (N)
    P: Applied Load (N)
    fw: Load Factor (Refer to Table-4)
    fH : Hardness Factor (Refer to Fig.-1)
    fT : Temperature Factor (Refer to Fig.-2)
    fC : Contact Factor (Refer to Table-3)
     
    Hardness Factor (fH)
    Temperature Factor (fT)
    When using linear systems, ample hardness of the shafts in contact with balls is needed as well.
    If the ample hardness of the shafts are not obtained, the allowable loads are reduced and the life will be shortened.
    When linear systems are exposed to temperature higher than 100°C, hardness will be reduced, and allowable loads and life will be reduced.
    Fig. 1. Hardness Factor
    Fig. 2. Temperature Factor
    Flanged Linear Bushing - Single, Opposite Counterbored Hole Fig.-1. Hardness Factor
    Flanged Linear Bushing - Single, Opposite Counterbored Hole Fig.-2. Temperature Factor
     
    Contact Factor (fc)
    Load Factor (fw)
    Generally, more than 2 linear systems are used for 1 shaft. In this case, the load applied to each linear system will vary depending on machining accuracies and will not be equally distributed. As the result, allowable load per linear system will vary depending on the number of linear systems used on one shaft.
    To calculate the load applied to the linear systems, in addition to object weight, it requires inertia force attributed to motion velocity or moment loads. Furthermore, it is necessary to accurately determine the temporal change of each. However, in reciprocating motion applications, it is difficult to obtain accurate calculations due to the effects of vibrations and shocks, in addition to those of repeated starting and stopping motions. Therefore, use the Table below in order to simplify the Life Calculations.
    Table-3. Contact Factor
    Table-4. Load Factor
    Number of bushings on one shaftContact Factor fc
    11.00
    20.81
    30.72
    40.66
    50.61
    Conditions of Usefw
    No external shocks or vibrations
    when running in low speed: 15 m/min. or less    		1.0 to 1.5
    No excessive external shocks or vibrations
    when running in medium speed: 60 m/min. or less    		1.5 to 2.0
    External shocks and vibrations given
    when running in high speed: 60 m/min. or more    		2.0 to 3.5
     

    Life in hours can be obtained by calculating travel distance per hour.
    If the stroke length and number of strokes are constant, life in hours can be calculated using the following formula.

    Lh =  L· 1032· ℓs· n1· 60
    Lh: Life Hours (hr), Ls: Stroke Length (m), L: Rated Life (km)
    n1: Reciprocating Cycles per Minute (cpm)

    Cautions/Prohibitions

    (1) When mounting Linear Bushings and Housings, use Retaining Rings (Snap Rings), Stoppers, etc.

    ■Mounting with Retaining Ring
    ■Mounting with Stoppers
     

    (2) Linear Bushings are not suitable for rotating motion or usage with repetitive insertion and extraction of shafts. Forced use may cause damage.

    Flanged Linear Bushing - Single, Opposite Counterbored Hole. (2) Linear Bushings are not suitable for rotating motion or usage with repetitive insertion and extraction of shafts. Forced use may cause damage.
     

    (3) If large moment load (offset load) is to be applied, Short/Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended.

    Flanged Linear Bushing - Single, Opposite Counterbored Hole. (3) If large moment load (offset load) is to be applied, Short/Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended.
     

    (4) When assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently.

    Flanged Linear Bushing - Single, Opposite Counterbored Hole. (4) When assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently.
    General Information - Linear Ball Bushings

     

    Linear Ball Bushing Selection Details

    - Inner diameter [dr]: 3 mm – 100 mm
    - Total length [L]: 10 mm – 300 mm
    - Housing material: aluminum, stainless steel (stainless steel), steel
    - Ball material: stainless steel (stainless steel), steel
    - Ball cage material: plastic, stainless steel (stainless steel)
    - Surface treatment: without, chemically nickel-plated, LTBC
    - Radial offset (μm): 50 μm – 4 μm

    At MISUMI, you will find the following linear bearing versions: with locking ring with groove, with dust seal, with lubrication unit (MX), with grease nipple, housing open at the bottom/open, with clearance compensation, with flange, with centred flange, with round flange, with flattened round flange (compact flange), with square flange, with block housing, with wide barrel and ball housing, ball cage guides for linear and rotational movements (limited stroke).

     

    Description/Basics

    Linear ball bushings convert the rolling motion of steel balls (4) into infinite linear motion. They can implement highly precise and low-friction linear motion and can be used in almost all industries, e.g., in systems for semiconductor parts, electronic components and in food packaging.

    Ball recirculating bushings are used in conjunction with linear shafts. The linear movement mechanism uses steel balls (4) for unlimited linear movement.

    Linear bearing units allow linear shafts to travel indefinitely through steel balls that are constantly circulating within the running grooves directed by the outer cylinder and ball cage (3).

    Compared to plain bearings, ball bushings perform linear movements with lower friction and high accuracy. They are used in many applications, such as conveyors and semiconductor manufacturing facilities.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    Linear Bearing Unit Design - (1) Dust Seal, (2) Outer Cylinder, (3) Ball Cage, (4) Steel Balls

     

    Dynamic friction coefficient in comparison

    DesignDynamic friction coefficient (μ)
    Miniature profile rail guide0.004 ~ 0.006
    Profile rail guide for medium and heavy loads0.002 ~ 0.003
    Cross roller guides0.001 ~ 0.003
    Cross roller tables0.001 ~ 0.003
    Linear ball bearing0.002 ~ 0.003
    Ball cage guides0.0006 ~ 0.0012

    The specified values are for comparison purposes only and are therefore not reference values.

     

    Areas of Application

    Linear ball bushings have a linear working direction and can be used for horizontal or vertical linear movements. Therefore, MISUMI linear ball bushings can be used in almost all industries. Since linear ball bushings are intended only for axial movement, rotational use would lead to premature fatigue or destruction of the ball bushings. For rotary movements, we therefore recommend ball cage guides, which enable not only infinite linear movements (stroke-limited) in addition to infinite rotary movements.

    Common applications are lifting mechanisms or guides for cylinders. The ball bushings are also a good variant for additional guide. In addition, these linear ball bushings are often found in 3D printers, metering systems, measuring devices, positioning and alignment devices, bending devices and sorting systems.

    For systems with increased particle development (e.g., dust and other abrasive particles), the linear systems should be protected with covers or bellows. The ingress of particles leads to a clumping of the lubricating grease or to significantly increased abrasion. By clumping the grease, the balls block in the ball circulation, which results in unscheduled maintenance.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings
    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

      

    Materials

    Linear ball bearings consist of different materials due to their design and the individual components. MISUMI uses high-quality materials to achieve the longest possible service life. The following materials are available:

    - External cylinder: stainless steel (stainless steel) ~56HRC, steel with ~58HRC
    - Ball: stainless steel (stainless steel), steel
    - Ball cage: plastic, stainless steel (stainless steel)
    - Housing: aluminum, stainless steel (stainless steel), steel
    - Seal: nitrile rubber

    You can find more detailed material information in the tab Technical Drawing.

     

    Coatings

    To protect linear ball bushings from corrosion, the surface can be chemically nickel-plated.

    As an alternative to a chemical nickel-plating, ball bushings can also be coated with LTBC. The LTBC coating (Low Temperature Black Chrome Platinum) is a surface treatment that protects against corrosion and has low reflection. The coating consists of a 5 μm thick chrome ceramic layer with fluoropolymer infusion and it deposits as a black film. In addition, the LTBC coating is crack-proof and interchangeable and is therefore resistant to delamination due to extreme or repeated bending. LTBC-coated linear ball bearings are thus particularly suitable for locations where corrosion or light reflections are undesirable.

    Note: the inner wall of LTBC coated linear bushing units is not surface treated.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    LTBC-coated linear ball bushing - state after 50 km glide test under 412N load.

     

    Comparison test of corrosion protection

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    Salt water spray test according to JIS H8502. Test piece: simple flanged linear ball bushing
    (1) EN 1.3505 equiv., (2) EN 1.4125 equiv., (3) chemically nickel-plated, (4) LTBC coating, (hr = duration in hours)

     

    Instructions for Use / Installation Information - Linear Ball Bushings

     

    Instructions for use

    - MISUMI linear bearings should be used in conjunction with MISUMI linear shafts.
    - We recommend using a hardened linear shaft in the g6 tolerance.
    - An additional hard chrome plating of the linear shaft makes it more wear-resistant.
    - When installing ball bushings in housings, we recommend an H7 housing tolerance. Too close a tolerance will reduce the internal contact travel [dr] to the shaft and can lead to increased wear and premature failure.
    - The utilisation of two ball bushings on a steel shaft improves the shaft guide in a system. However, if the angular errors are too high, a self-aligning linear ball bushing should be selected.
    - When utilising two linear shafts, the drive should be centred in the system to avoid unnecessary stresses/lever effects.
    - The service life, also called nominal service life, should be calculated using the present load case. Here you can perform your service life calculation.
    - Depending on local conditions such as temperature, humidity and gases, a variant made of stainless steel or an LTBC coating is recommended.
    - When the linear shafts bend sharply, a self-aligning/self-adjusting linear ball bushing should be selected.

     

    Installation Information

    General installation instructions for linear ball bushings and linear shafts

    MISUMI linear ball bushings should be used in conjunction with MISUMI linear shafts (hardened, tolerance g6).

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    MISUMI tolerance range: inner diameter linear ball bushings (LMU) and outer diameter linear shafts (SFJ).

     

    General installation instructions for linear ball bushings and housings

    MISUMI linear ball bushings should be used in conjunction with MISUMI housings (tolerance H7).

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    MISUMI tolerance range: outer diameter of linear ball bushing and inner diameter of housing.

     

    Standard linear ball bushing installation instructions

    1. When installing standard linear ball bushings, you can use the following locking means: retaining rings (clamping rings), stoppers

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    (1) retaining rings, (2) housing, (3) stopper/LMST fixing plate

     

    2. Ball bushings are not suitable for rotary motion and applications requiring repetitive insertion and removal of linear shafts. Such a misuse of the linear ball bushing could damage the recirculating ball bushing.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    3. Simple linear ball bushings are not suitable for large torque loads (offset load/lever effect). The use of double or multiple linear bushings is recommended for these load cases.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    (1) Linear ball bushing with two grooves

     

    4. When assembling linear shafts, forceful slanted insertion into the linear ball bushing can cause the ball cage to bend and the balls to fall out. Be sure to centre the steel shaft to the linear ball bushing before inserting the steel shaft into the linear ball bushing.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    Installation instructions for linear ball bushings with stopper/fixing plate

    Through the stopper plates, the versions can be designed independently of the housing length.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    (1) Attachment, (2) linear ball bushing – standard, (3) linear shaft, (4) LMST fixing plate

     

    The stopper plates enable the ball sleeve and linear shaft to be installed flush against the end faces.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    (1) Linear shaft, (2) housing, (3) linear ball bushing – standard, (4) spacer sleeve LBS/LBSA for linear ball bushings, (5) LMST fixing plate

     

    The LMST fixing plates can also be used to lock linear bushings in place.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    (2) housing, (4) LMST fixing plate

     

    Assembly Instructions for Linear Ball Bushings with Flange and Lubrication Unit MX

    When fastening the linear ball bushing with the lubrication unit MX, do not insert the housing of the lubrication unit as guide as shown in (2), as this can damage the housing. Instead, use the flange and guide version as shown in (3).

    Do not disassemble the linear ball bushing with flange and lubrication unit MX, as this will impair function.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    Assembly Instructions for Linear Ball Bushings with Housing and without Cylinder Pin Hole

    During interface assembly, centring on the lateral reference surface can be eliminated by means of the cylinder pin holes.

    This reduces the machining effort of the upper plate to be mounted on the block.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings
    Linear ball bushing with housing
    Positioning with plate end cover
    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings
    Linear ball bushing with housing
    Positioning with cylinder pins

      

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings
    Linear ball bushing with housing (wide version)
    Positioning with plate end cover
    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings
    Linear ball bushing with housing (wide version)
    Positioning with cylinder pins

      

      

    Maintenance - Linear Ball Bushings

     

    General Maintenance Instructions

    Grease the rows of balls inside the ball bushing before use. Then grease regularly during use. Grease reduces friction by forming a layer between the balls and rolling shaft surfaces and prevents seizing. Loss of grease and degradation of grease shorten the service life of linear guides.

    - Recommended grease: lithium soap grease
    - Recommended lubrication interval: every 6 months
    *Every 3 months for extended work or every 1000 km. Maintenance intervals vary depending on the application and ambient conditions.

     

    Lubrication

    Linear ball bushings from MISUMI are delivered coated with a corrosion protection oil. Exceptions to this are the designs with lubrication unit MX. After removing the anti-corrosion oil, we recommend lubricating the bearings.

    If you select one of the following lubricants in the configurator, you can order pre-lubricated versions. The versions L, G and H are prefilled with grease, whereby L and G offer a strong reduction in particle formation by means of a suitable grease distribution during operation (see quantitative comparison of particle formation below). Lubrication units MX are filled with lithium soap grease.

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

     

    Assembly of the lubrication unit MX

    The lubrication unit MX is equipped with a fibre insert with lubricant. The capillary effect allows the lubricant to be properly applied to contact surfaces. For this purpose, a constant oil film is formed between balls and steel shaft, which significantly prolongs the lubrication intervals.

     

    Linear ball bearings - linear bearings - recirculating ball bushing - recirculating ball bushings - linear bearing unit - linear bearing units - ball bushing - ball bushings

    Recirculation ball bushing with lubrication unit - (1) MX Lubrication Unit, (2) MX Lubrication Unit - Plastic Housing, (3) Lubricant Pads, (4) Dust Seal, (5) Balls, (6) Linear Shaft

     

    Properties of the MX lubrication unit

    Longer maintenance intervals: the long-lasting lubricant performance leads to a significant reduction in maintenance, especially in machine and equipment environments where lubrication is difficult to achieve.
    Environment: the MX lubrication unit helps reduce lubricant consumption and thus protects the environment.
    Cost benefit: it contributes to reducing maintenance costs and failure rate caused by failing to lubricate.
    Less effort: it is not necessary to refill the lubricant prior to use, since the ball parts are already filled with a lithium soap-based grease in addition to the lubrication unit.

     

    Comparison test of linear ball bearings and linear ball bearings with lubrication unit

    Test conditions:
    - Sample:     linear ball bushing LMU12 with rust protection oil and linear ball bushing with lubrication unit LMU-MX12
    - Effective load: 206N (50% of the dynamic load rating of 412N)
    - Average speed: 42 m/min (0.7 m/s)
    - Stroke: 100 m
    - Lubricant: lubricating grease, only initial filling (only LMU-MX12)
    - Shaft material: EN 1.3505 Equiv. (58HRC)
    - Duration: 24-hour continuous operation
    *The above test conditions serve only as reference values and cannot be considered as a manufacturer warranty.

     

    Test result:

    With an effective test load of 50% of the load-carrying capacity of 412N, the design with the MX lubrication unit could achieve a continuous output of 2.5-fold longer than with no MX lubrication unit.
    *Since the 2007 catalogue, the data have been updated after the safety limit has been confirmed by further data from test results.

     

    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

    Endurance test result - standard linear ball bearing LMU, linear ball bearing LMU-MX with lubricant unit

     

    Supplementary Article

     

    Linear Shaft

    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

     

    Retaining Ring

    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

     

    Set Collar / Clamping Ring

    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

     

    Accessories for Linear Ball Bearing

    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

     

    Shaft Holder

    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

     

    Industrial Applications
    3D printer industry
    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen
    Automotive industry
    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen
    Pharmaceutical industry
    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen
    Packaging industry
    Linearkugellager - Linearlager - Kugelumlaufbuchse - Kugelumlaufbuchsen - Linearlagereinheit - Linearlagereinheiten - Kugelbuchse - Kugelbuchsen

    Part number list

    Number of items
  • 1
    • Part number
    SLHFCS3
    SLHFCS3A
    SLHFCS4
    SLHFCS4A
    SLHFCS4H
    SLHFRS3
    SLHFRS3A
    SLHFRS4
    SLHFRS4A
    SLHFRS4H
    SLHFSS3
    SLHFSS3A
    SLHFSS4
    SLHFSS4A
    SLHFSS4H

    RoHS Information

    Features, Areas of Application

    [dr] Inner Diameter

    (mm)

    [L] Length (Total)

    (mm)

    Material of Outer Cylinder

    Outer Cylinder Surface Treatment

    Grease Coating

    [D] Outer Diameter

    (mm)

    Basic Load Rating Dynamic Rating (Detail)

    (N)

    Basic Load Rating Static Rating

    (N)

    Inscribed Circle Diameter Tolerance (Negative Side)

    (mm)

    Eccentricity

    (μm)

    Basic Rated Load, Dynamic Rating

    (N)

    Flange Shape

    Ball Material

    Retainer Material

    Seals

    Counterbored Hole

    		RoHS?Minimum order quantity
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    3
    10
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    7
    69
    105
    -0.008
    8
    69
    Compact Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    10 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    3
    10
    EN 1.4125 Equiv.
    No Surface Treatment
    [Grease coating] A Type
    7
    -
    105
    -0.008
    8
    69
    Compact Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    -
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    8
    88
    127
    -0.008
    8
    88
    Compact Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    [Grease coating] A Type
    8
    -
    127
    -0.008
    8
    88
    Compact Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    -
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    8
    88
    127
    -0.008
    8
    88
    Compact Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    3
    10
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    7
    69
    105
    -0.008
    8
    69
    Round Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    10 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    3
    10
    EN 1.4125 Equiv.
    No Surface Treatment
    [Grease coating] A Type
    7
    -
    105
    -0.008
    8
    69
    Round Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    -
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    8
    88
    127
    -0.008
    8
    88
    Round Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    [Grease coating] A Type
    8
    -
    127
    -0.008
    8
    88
    Round Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    -
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    8
    88
    127
    -0.008
    8
    88
    Round Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    3
    10
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    7
    69
    105
    -0.008
    8
    69
    Square Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    3
    10
    EN 1.4125 Equiv.
    No Surface Treatment
    [Grease coating] A Type
    7
    -
    105
    -0.008
    8
    69
    Square Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    -
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    8
    88
    127
    -0.008
    8
    88
    Square Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    [Grease coating] A Type
    8
    -
    127
    -0.008
    8
    88
    Square Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    -
    1 pieces
    RoHS Requirements Fulfilled
    Vacuum / Corrosion and Chemical Resistance / Heat-Resistant
    4
    12
    EN 1.4125 Equiv.
    No Surface Treatment
    Not Provided
    8
    88
    127
    -0.008
    8
    88
    Square Flange
    EN 1.4125 Equiv.
    Stainless Steel
    No Seal
    Standard
    10
    1 pieces
    Unit price (excluding VAT)(Unit price including VAT)
    Standard shipping days
    21.41 €
    ( 25.48 € )
    14 working days
    26.36 €
    ( 31.37 € )
    9 working days
    20.61 €
    ( 24.53 € )
    Stock item: 1 working dayAvailable for same-day shipping
    22.84 €
    ( 27.18 € )
    9 working days
    34.29 €
    ( 40.81 € )
    9 working days
    18.67 €
    ( 22.22 € )
    14 working days
    23.48 €
    ( 27.94 € )
    9 working days
    17.88 €8.58 €
    ( 10.21 € )
    Stock item: 1 working dayAvailable for same-day shipping
    20.41 €
    ( 24.29 € )
    9 working days
    31.55 €
    ( 37.54 € )
    9 working days
    21.74 €11.96 €
    ( 14.23 € )
    Stock item: 1 working dayAvailable for same-day shipping
    27.16 €
    ( 32.32 € )
    9 working days
    20.95 €10.68 €
    ( 12.71 € )
    Stock item: 1 working dayAvailable for same-day shipping
    23.56 €
    ( 28.04 € )
    9 working days
    34.62 €
    ( 41.20 € )
    9 working days
  • 1

    • More Information

    Basic information

    Technical information