Linear ball bearings / flange selectable / stainless steel, steel / treatment selectable / seal selectable (Part Numbers - CAD Download)

Part Number

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LHFCF3

Back to the Category Linear Ball Bushings

Technical Drawing - Linear Ball Bushings

 

Flanged Linear Bushings/Single Type:Related Image

 

Basic Properties (e.g., material, hardness, coating, tolerance) - Linear Ball Bushings
 
Counterbored HolesTypeOuter CylinderBallsRetainerAmbient Operating Temp. Accessory
Round FlangeSquare FlangeCompact Flange Material Hardness Surface Treatment Material Material
Opposite CounterboredLHZRLHZSLHZCEN 1.3505 Equiv.58HRC~-EN 1.3505 Equiv.Plastic (Duracon M90 Equiv.)-20~ 80°CSeal Material
Nitrile Rubber
(-20~120°C)
StandardLHFR-N
No Seal
LHFS-N
No Seal
LHFC-N
No Seal
LHFRLHFSLHFC
LHFRFLHFSFLHFCFStainless Steel (Stainless Steel)-20~110°C
LHFRRLHFSRLHFCRLow Temperature
Black Chrome Plating
EN 1.4125 Equiv.Plastic (Duracon M90 Equiv.)-20~ 80°C
LHFRMLHFSMLHFCMElectroless Nickel Plating
LHFRMFLHFSMFLHFCMFStainless Steel (Stainless Steel)-20~110°C
SLHFRSLHFSSLHFCEN 1.4125 Equiv.56HRC~-Plastic (Duracon M90 Equiv.)-20~ 80°C
SLHFRSSLHFSSSLHFCSStainless Steel (Stainless Steel)-20~120°C

 

Further specifications can be found under the tab More Information.

Details on lubricants can be found in the catalog on p. 304

 

Composition of a Product Code - Linear Ball Bushings

 

Part Number  
 LHFC8
 LHFC-N10
Flanged Linear Bushings/Single Type:Related Image LHFCR8
Flanged Linear Bushings/Single Type:Related Image LHFCR10L
 

(No Seal)
(LTBC Plating)
(L Type Greased)
 


For Features of LTBC Plating, see P.304. Alternative grease types available.Alternative grease types available.
For Days to Ship, Price and Performance, see .>>P.304 .

 

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

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Part Number
LHFCF3
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHS[dr] Inner Diameter
(mm)
[L] Length (Total)
(mm)
Material of Outer Cylinder Outer Cylinder Surface Treatment [D] Outer Diameter
(mm)
Basic Load Rating Dynamic Rating (Detail)
(N)
Basic Load Rating Static Rating
(N)
Tolerance of Inscribed Circle (Minus Side)
(mm)
Eccentricity
(μm)
Flange Shape Ball Material Retainer Material Seals Counterbored Hole Greased filled

12.76 €

10 Available 9 Days 10310[Steel] EN 1.3505 Equiv.No Surface Treatment769105-0.0088Compact FlangedEN 1.3505 Equiv.Stainless SteelNo SealStandardNot Provided

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Back to the Category Linear Ball Bushings

Technical Drawing - Linear Ball Bushings

 

Flanged Linear Bushings/Single Type:Related Image

 

Specification Tables - Linear Ball Bushings

 

drD ToleranceLHTdd1tP.C.D.WFAEccentricityRows of BallsPerpendicularityBasic Load RatingMass (g)
 Tolerance No Surface TreatmentSurface Treatment 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
kgf=Nx0.101972
For Precautions for Use, see Here. Select Height-adjusting Spacers for Flanged Bushings from Here.
No seal for dr=3 and 4, LHFR-N, LHFS-N and LHFC-N. Reversed counterbored type can be bolted from the reverse side.

Basic information

Type2 Flange Style Standard Flange Type Standard Flange
Motion Linear Motion Grease Coating Not Provided Number of Linear Ball Bearings Single
Accuracy High-Quality Type Standard Flange Version Length Variant Single

This page is Linear ball bearings / flange selectable / stainless steel, steel / treatment selectable / seal selectable, part number LHFCF3.
You can find the detail information about specifications and dimensions on part number LHFCF3.

Variation of this product

Part Number
LHFC-N16
LHFC-N20
LHFC-N25
LHFCF30
LHFCF30G
LHFCF30H
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountStandard
Shipping Days
?
RoHS[dr] Inner Diameter
(mm)
[L] Length (Total)
(mm)
Material of Outer Cylinder Outer Cylinder Surface Treatment [D] Outer Diameter
(mm)
Basic Load Rating Dynamic Rating (Detail)
(N)
Basic Load Rating Static Rating
(N)
Tolerance of Inscribed Circle (Minus Side)
(mm)
Eccentricity
(μm)
Flange Shape Ball Material Retainer Material Seals Counterbored Hole Greased filled

9.00 €

1 Available Same day

Stock

101637[Steel] EN 1.3505 Equiv.No Surface Treatment287751180-0.00912Compact FlangedEN 1.3505 Equiv.Plastic (POM Equiv.)No SealStandardNot Provided

10.70 €

1 Available Same day

Stock

102042[Steel] EN 1.3505 Equiv.No Surface Treatment328821370-0.0115Compact FlangedEN 1.3505 Equiv.Plastic (POM Equiv.)No SealStandardNot Provided

15.26 €

1 Available 5 Days 102559[Steel] EN 1.3505 Equiv.No Surface Treatment409801570-0.0115Compact FlangedEN 1.3505 Equiv.Plastic (POM Equiv.)No SealStandardNot Provided

31.84 €

1 Available Same day

Stock

103064[Steel] EN 1.3505 Equiv.No Surface Treatment4515702740-0.0115Compact FlangedEN 1.3505 Equiv.Stainless SteelWith SealStandardNot Provided

53.28 €

1 Available 9 Days 103064[Steel] EN 1.3505 Equiv.No Surface Treatment4515702740-0.0115Compact FlangedEN 1.3505 Equiv.Stainless SteelWith SealStandardType G (Low Particlate)

53.28 €

1 Available 9 Days 103064[Steel] EN 1.3505 Equiv.No Surface Treatment4515702740-0.0115Compact FlangedEN 1.3505 Equiv.Stainless SteelWith SealStandardType H (For Food and Beverages)

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