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No.000258 Hand for thin plate transfer

Suction pads equipped with cushion mechanism

Related Category

Flanged Linear Bushings

Product name Flanged Linear Bushings/Single Type
Part number LHFS16
Features Easy to assemble with bolt-on flanges. The Opposite Counterbored Hole Type is also available.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Select a ball bushing in order to reduce sliding resistance of the buffer axis.

Available sizes

■Flanged Linear Bushings

Type Outer Cylinder Ball Retainer Operating Ambient Temperature
Material Hardness Surface Treatment Material Material
Round Flange
Square Flange
Compact Flange
EN 1.3505 Equiv. 58HRC ~ - EN 1.3505 Equiv. Plastic
(Duracon M90 Equiv.)
-20 ~ 80°C
Stainless Steel
(Stainless Steel)
-20 ~ 110°C
Low Temp. Black Chrome Plating EN 1.4125 Equiv. Plastic
(Duracon M90 Equiv.)
-20 ~ 80°C
Electroless Nickel Plating
Stainless Steel
(Stainless Steel)
-20 ~ 110°C
- Plastic
(Duracon M90 Equiv.)
-20 ~ 80°C
EN 1.4125 Equiv. 56HRC ~ Stainless Steel
(Stainless Steel)
-20 ~ 120°C

■Sizes and Dimensions

I.D. O.D. Overall Length
3 7 10
4 8 12
5 10 15
6 12 19
8 15 24
10 19 29
12 21 30
13 23 32
16 28 37
20 32 42
25 40 59
30 45 64
35 52 70
40 60 80
50 80 100

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Selection steps

■Linear bushing selection steps

Determine Application Conditions
(loads, motion pattern, life)

Temporarily select linear bushing specifications
(select the shaft diameter, length, and etc. based on the conditions of use.)

Basic safety check
  • ●Basic Static Load Rating
  • ●Basic Dynamic Load Rating
  • ●Allowable Static Moment
  • ●Life

Considerations based on the required performance
●Life variations due to various changes (temperature, hardness, etc.)

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Accuracy Info

■Accuracy info. of flanged linear bushing

I.D. I.D. Tolerance O.D. O.D. Tolerance (With Surface Treatment) O.D. Tolerance (With Surface Treatment) Overall Length Overall Length Tolerance
3   0
-0.008
7   0
-0.011
  0
-0.015
10 ±0.3
4 8 12
5 10 15
6   0
-0.009
12   0
-0.013
  0
-0.018
19
8 15 24
10 19 29
12 21   0
-0.016
  0
-0.021
30
13 23 32
16 28 37
20   0
-0.010
32   0
-0.019
  0
-0.025
42
25 40 59
30 45 64
35   0
-0.012
52   0
-0.022
  0
-0.030
70
40 60 80
50 80 100

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Performance info.

■Speeds / oads (load information) of the flanged linear bushings

I.D.
(mm)
Basic Load Rating
Basic Dynamic Load Rating (N) Basic Static Load Rating (N)
3 69 105
4 88 127
5 167 206
6 206 265
8 265 380
10 372 549
12 412 598
13 510 784
16 775 1180
20 882 1370
25 980 1570
30 1570 2740
35 1670 3140
40 2160 4020
50 3820 7940

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Technical calculations

■Life of Flanged Linear Bushings

When the linear system is in motion with applied load, the rolling surfaces and races are subject to repeated stress, This stress can cause scale-like flaking due to material fatigue. The total run distance until the flaking appears in the "Life" of the linear system.

Rated life can be calculated with the basic dynamic load rating and the actual load applied to the linear bushings, as shown below.

  • L: Rated Life (km)
  • fH: Hardness Factor (See Fig.1)
  • fT: Temperature Factor (See Fig. 2)
  • fC: Contact Factor (See Table-3)
  • fW: Load Factor (See Table-4)
  • C: Basic Dynamic Load Rating (N)
  • P: Applied Load (N)

●Hardness factor (fH)

For linear applications, the shafts and ball bearings must have sufficient hardness. If they do not, the load rating decreases and the life will be reduced.

Fig. 1. Hardness Factor

●Temperature factor (fT)

When the temperature of the linear system exceeds 100 degrees C, the hardness will decrease and as a result, the allowable load and life will reduced.

Fig. 2. Temperature Factor

●Contact factor (fC)

In general, it is common to use two or more bushings on one shaft. In these cases, the load on each bushing will vary depending on the machining precision and will not have equally distributed loads. As a result, the allowable load per bushing will vary depending on the number of bushings used on the rail.

Table-3. Contact Factor

Number of Bearings Installed on One Shaft Contact Factor Fc
1 1
2 0.81
3 0.72
4 0.66
5 0.61

●Load Factor (fW)

To calculate the load applied to the linear bushings, in addition to the object weight, the inertia force attributed to the motion velocity, moment loads and the variations of each over time must be obtained. However, for reciprocating motion applications, it is difficultto obtain accurate calculations due to the effects of the vibrations and shocks. Therefore, use Table 2 to simplify the life calculations.

Conditions of Use fw
No external shocks / vibrations, 
low speed 15m/min or less
1.0 ~ 1.5
No significant shocks / vibrations, 
medium speed 60m/min or less
1.5 ~ 2.0
With external shocks / vibrations, 
high speed exceeding 60m/min
2.0 ~ 3.5

Life can be obtained by calculating the travel distance per unit of time. When the stroke length and the number of strokes are constant, it can be calculated using the formula below.

  • Lh: Life (hr)
  • L: Rated Life (km)
  • Ls: Stroke length (m)
  • n1: Cycles per Minute (cpm)

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Shoulder Bolts

Product name Shoulder Bolts/Tolerance e9/EN 1.7220 Equiv.
Part number MSB16-95
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Be sure that the shaft is hard enough for this application, a linear shaft would be recommended to reduce costs.

Risk info.

Premature wear by low hardness

Available sizes

■Shoulder bolts

Material Hardness Surface Treatment Strength Class
EN 1.7220 Equiv. 33 ~ 38HRC - 10.9
Electroless Nickel Plating 10.9
EN 1.4301 Equiv. - - A2-50

■Shoulder bolts

Under head Dia. Shaft length under head Head Thread
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 110 120 130 140 150 O.D. Height Thread Dia. X Pitch Length
Ø4 - - - - - - - - - - - - - - - - Ø6.5 3 M2.5 x 0.45 5
Ø4.5 - - - - - - - - - - - - - - - Ø7 M3 x 0.5 6
Ø5 - - - - - - - - - - - - - - - Ø8 3.5
Ø5.5 - - - - - - - - - - - - - - Ø9 4 M4 x 0.7 7
Ø6 - - - - - - - - - - -
Ø6.5 - - - - - - - - - Ø10 5 M5 x 0.8 9
Ø8 - - - Ø13 6 M6 x 1.0
Ø10 - - - Ø16 8 M8 x 1.25 12
Ø12 - - - - - Ø17
Ø13 - - Ø18 10 M10 x 1.5 16
Ø16 Ø24 14 M12 x 1.75 18
Ø20 Ø27 18 M16 x 2.0 24

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Accuracy Info

■Accuracy of shoulder bolts -Shaft dia. Tolerance e9

Shaft Dia.
Tolerance of O.D. Dimension
Ø4 -0.020
-0.050
Ø4.5
Ø5
Ø5.5
Ø6
Ø6.5 -0.025
-0.061
Ø8
Ø10
Ø12 -0.032
-0.075
Ø13
Ø16
Ø20 -0.040
-0.092

Tolerance of shaft length: +/- 0.1

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IDEA NOTE Economical cushion mechanism

A cushion is created using a spring and a linear bushing.

IDEA NOTE Economical stopper mechanism and load adjustment

Use a standard hex stud rather than an adjusting stopper screw.

  • TERMS AND CONDITIONS FOR USE OF CAD DATA
    Your access to the CAD data that MISUMI Corporation (hereinafter referred to as the Company) posts on this site (including 3D CAD data, intermediate 3D CAD data and 2D CAD data; hereinafter referred to as the Data) are of products manufactured and/or sold by the Company (hereinafter referred to as the Products) assumes that you have read and accepted these terms and conditions which govern your use of the Data. If you do not agree to these terms and conditions, you must stop using this website and the Data. You must not use the Data for any unlawful purpose or in any manner inconsistent with these terms and conditions.
    1. CAD Data
    The Data is prepared for assisting the Company's users in the CAD design process by providing dimensions and other Product information. In order to provide the best speed and stability working within this site, the Product drawings were simplified to reduce the size of the Data. For instance, some of the Products are shown without the oil groove shape, screws or spring shape. Also, please be aware that the tolerance, surface roughness and/or chamfer of the Data may vary from the actual Products.
    2. Disclaimer on Data
    While the Company has carefully prepared the Data, accuracy of the Data is not guaranteed and is subject to the variances as described above. The Company may also modify, add or delete the Data at any time without prior notice. The Company assumes no liability for any direct, indirect, consequential or special damages that you may claim resulted from your use of the Data or any changes to or deletions of the Data regardless of the reason. The Company provides no warranty as to the quality, accuracy, functionality, safety or reliability of the combination of Products and parts. Example applications and combinations of the Products are provided for illustrative purposes only.
    3. Copyright
    Copyrights to the content and the Data belong to the Company or the manufacturers of the Products. The said copyright is protected by the Copyright Act and international treaties. The use (including duplication, modification, uploading, posting, transmission, distribution, licensing, sales and publishing) of the Data except for the purpose to use the Data described above without prior approval of the Company is not allowed. The Data cannot be used for any purposes (including sales promotion) except for designing your machine. If you violate this provision or the laws or regulations, the Company may prohibit you from the use of the Data, the Company’s site and/or take legal action. So long as you comply with these terms and conditions, the Company grants to you a non-exclusive, non-transferable, revocable license to access and use the Data for the sole purpose of assisting you in designing machines that incorporate products.
    4. Disclaimer of Warranty
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    Further, the Company will not be liable to you for any failure or delay by the Company to provide access to the Data or any of its obligations under these terms and conditions where such failure or delay is the direct or indirect result of any circumstances beyond the Company's reasonable control (and the Company's obligations will be suspended for the duration of such circumstances).
    5. Policy of Third Parties
    You may be required to separately agree to third party's policies if you use third party software to create or browse the Data or use a third party’s CAD data. In this case, the Company does not assume any responsibility for defects of such CAD data or the software of the third party or violation of their rights. Understand them before use.

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       Each sub-assembly unit can be used as it is or can be edited.

Application Overview

Purpose

  • A suction head is used to transfer thin plates.
  • To prevent damage to the workpieces, a spring is utilized to act as a cushioning function when the positioning accuracy of the hand is poor.

Points for use

  • Handle the workpiece using heads with suction pads after the workpiece has been set.
  • Applicable to relatively low frequency handling.

Target workpiece

  • Thin plate
  • Material: Glass epoxy
  • External dimension: W300 x D250 x H1
  • Workpiece weight: 135g

Design Specifications

Operating Conditions or Design Requirements

  • Cushion stroke of suction pad: 10mm
  • External dimension: W495 x D160 x H224

Required Performance

  • Positioning accuracy: 1mm increments

Selection Criteria for Main Components

  • Spring
    • Select a spring force that will avoid damaging the workpiece.

Design Evaluation

Verification of main components

  • Select a spring force sufficient to avoid damage to workpieces.
  • Spring
    • Conditional values: Force applied to workpiece = 30N, Spring constant k = 0.5N/mm, Spring deflection x = 29mm
    • Calculation: Spring force when sucking workpiece. From F = kx, F = 0.5 x 29 = 14.5 < 30N
      ⇒Workpiece will not be damaged due to spring force.

Other Design Consideration

  • In this example the speed and frequency is low, so a stripper bolt has been selected to reduce the cost. If the speed or frequency is high a linear shaft should be used instead.

Explore Similar Application Examples

Page - / -

Part List

No. Part Name Sample picture MISUMI Part Number
For Price and Days to ship click on Part No.
Quantity
1 Square Aluminum Extrusion HFS6-3060-160 2
2 Square Aluminum Extrusion HFS6-3060-450 1
3 End Caps for Aluminum Extrusion HFC6-3060-S 5
4 Brackets for Aluminum Extrusion HBLFSD6 2
5 Linear Bushings LHFS16 4
6 Shoulder Bolts MSB16-95 4
7 Compression Springs WF27-60 4
8 One-Touch Couplings MSELL6-1 2
9 Nuts For Aluminum Extrusion HNTT6-6 25
10 Socket Head Cap Screws-with Washer SCBS6-15 3
11 Socket Head Cap Screws-with Washer SCBS6-20 14
12 Socket Head Cap Screws-with Washer SCBS6-25 4
  • The part list above contains only MISUMI parts.
    The list of parts and machined products of other manufacturers than MISUMI can also be downloaded by part list download (CSV).
  • You will find information on price and shipping days, in the Online Quote and Order System.
  • TERMS AND CONDITIONS FOR USE OF CAD DATA
    Your access to the CAD data that MISUMI Corporation (hereinafter referred to as the Company) posts on this site (including 3D CAD data, intermediate 3D CAD data and 2D CAD data; hereinafter referred to as the Data) are of products manufactured and/or sold by the Company (hereinafter referred to as the Products) assumes that you have read and accepted these terms and conditions which govern your use of the Data. If you do not agree to these terms and conditions, you must stop using this website and the Data. You must not use the Data for any unlawful purpose or in any manner inconsistent with these terms and conditions.
    1. CAD Data
    The Data is prepared for assisting the Company's users in the CAD design process by providing dimensions and other Product information. In order to provide the best speed and stability working within this site, the Product drawings were simplified to reduce the size of the Data. For instance, some of the Products are shown without the oil groove shape, screws or spring shape. Also, please be aware that the tolerance, surface roughness and/or chamfer of the Data may vary from the actual Products.
    2. Disclaimer on Data
    While the Company has carefully prepared the Data, accuracy of the Data is not guaranteed and is subject to the variances as described above. The Company may also modify, add or delete the Data at any time without prior notice. The Company assumes no liability for any direct, indirect, consequential or special damages that you may claim resulted from your use of the Data or any changes to or deletions of the Data regardless of the reason. The Company provides no warranty as to the quality, accuracy, functionality, safety or reliability of the combination of Products and parts. Example applications and combinations of the Products are provided for illustrative purposes only.
    3. Copyright
    Copyrights to the content and the Data belong to the Company or the manufacturers of the Products. The said copyright is protected by the Copyright Act and international treaties. The use (including duplication, modification, uploading, posting, transmission, distribution, licensing, sales and publishing) of the Data except for the purpose to use the Data described above without prior approval of the Company is not allowed. The Data cannot be used for any purposes (including sales promotion) except for designing your machine. If you violate this provision or the laws or regulations, the Company may prohibit you from the use of the Data, the Company’s site and/or take legal action. So long as you comply with these terms and conditions, the Company grants to you a non-exclusive, non-transferable, revocable license to access and use the Data for the sole purpose of assisting you in designing machines that incorporate products.
    4. Disclaimer of Warranty
    ANY AND ALL CONTENT APPEARING ON THIS WEB SITE IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. THIS WEB SITE, ITS CONTENT AND ITS LINKS ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS AND ARE USED ONLY AT YOUR SOLE RISK, TO THE FULLEST EXTENT PERMISSIBLE BY LAW. THE COMPANY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, OF ANY KIND, REGARDING THIS WEB SITE (INCLUDING ITS CONTENT, HARDWARE, SOFTWARE AND LINKS), INCLUDING AS TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, TITLE, NON INFRINGEMENT, RESULTS, ACCURACY, COMPLETENESS, ACCESSIBILITY, COMPATIBILITY, SECURITY AND FREEDOM FROM COMPUTER VIRUS. THE COMPANY WILL NOT BE LIABLE FOR ANY DAMAGES OR LOSSES, INCLUDING DIRECT, INDIRECT, CONSEQUENTIAL, SPECIAL, INCIDENTAL OR PUNITIVE DAMAGES AND/OR LOST PROFITS, IN CONNECTION WITH USE OF THE INTERNET, THIS WEB SITE, ITS CONTENT OR ITS LINKS
    Further, the Company will not be liable to you for any failure or delay by the Company to provide access to the Data or any of its obligations under these terms and conditions where such failure or delay is the direct or indirect result of any circumstances beyond the Company's reasonable control (and the Company's obligations will be suspended for the duration of such circumstances).
    5. Policy of Third Parties
    You may be required to separately agree to third party's policies if you use third party software to create or browse the Data or use a third party’s CAD data. In this case, the Company does not assume any responsibility for defects of such CAD data or the software of the third party or violation of their rights. Understand them before use.

    CAD Data Download (Unit Assembly)

    CAD Data Download: File Format
    生成

    Thank you for downloading the data.

    Click the Good IDEA! button when this application example is helpful.


    This data is utilized in order to list more useful application examples in the future.

    Cautions on the CAD data

    1. Assembly data shows the assembly drawings in the concept design phase. The sole purpose of the data is to explain the structure and functionality of the assembly and is not considered nor to be used as a final design.
      You will need to edit the Data so that it meets your specific design conditions.
    2. The CAD data unit assembly consists of sub-assemblies.
      Each sub-assembly unit can be used as it is or can be edited.
    3. * The part in the frame is a sub-assembly unit.

    4. The Data for fabricated parts is based on easy-to-edit dimensions and shapes in sketches and histories.
    5. The Data including the third-part components are made by the Company.

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