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  • Helpful application examples for mechanical engineers.

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  • Online application library with a range of ideas for all manufacturing industries.
  • Save design time and learn new design applications when you are concepting new machines.

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  2. Over 300 design application ideas
    collected from dozens of industries!

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SNS: 

No.000027 Centering Unit

Align scattered workpieces on a conveyor

Linear Shaft

Product name Precision Linear Shafts - Straight Type 
Part number SFJ16-247
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Suitable as guide shaft

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Available sizes

■Precision Linear Shafts - Straight Type

Material Hardness Surface treatment O.D. tolerance
g6 h5 f8
52100 Bearing Steel Induction hardened 58HRC〜
440C Stainless Steel Induction hardened 56HRC〜
52100 Bearing Steel Induction hardened 58HRC〜 Hard chrome plating
Plating hardness HV750~
Plating thickness 5μ or more
440C Stainless Steel Induction hardened 56HRC〜
52100 Bearing Steel Induction hardened 58HRC〜 Low temperature black chrome plating
1045 Carbon Steel Hard chrome plating
Plating hardness HV750~
304 Stainless Steel Plating thickness 10μ or more

■Sizes

O.D. tolerance O.D. Length
(Configure in 1mm increments)
g6・
h5
φ3 10〜 400
φ4
φ5
φ6 20〜 600
φ8 20〜 800
φ10
φ12 20〜1000
φ13 25〜1000
φ15
φ16 30〜1200
φ18
φ20
φ25 35〜1200
φ30 35〜1500
φ35
φ40 50〜1500
φ50 65〜1500
f8 φ6 20〜 600
φ8 20〜 800
φ10
φ12 20〜1000
φ13 25〜1000
φ15
φ16 30〜1200
φ18
φ20
φ25 35〜1200
φ30 35〜1500
φ35
φ40 50〜1500
φ50 65〜1500

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Accuracy Info

■O.D. tolerance table

O.D. O.D. tolerance
g6 h5 f8
φ3 -0.002
-0.008
0
-0.004
-
φ4 -0.004
-0.012
0
-0.005
φ5
φ6 -0.010
-0.028
φ8 -0.005
-0.014
0
-0.006
-0.013
-0.035
φ10
φ12 -0.006
-0.017
0
-0.008
-0.016
-0.043
φ13
φ15
φ16
φ18
φ20 -0.007
-0.020
0
-0.009
-0.020
-0.053
φ25
φ30
φ35 -0.009
-0.025
0
-0.011
-0.025
-0.064
φ40
φ50

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Linear Bushing with Pillow Block

Product name Linear Bushings with Pillow Blocks - Long, Wide Block 
Part number LHBBW16
Features Spec-designed to save the time of manufacturing a housing and installing a linear bushing, and to be tightly secured to a workpiece through four mounting holes.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Since the structure allows for slide plate mounting

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Available sizes

■Linear Bushings with Pillow Blocks - Long, Wide Block

Applicable linear
bushing
Housing Operating Ambient Temperature
Material Surface treatment
LMU Aluminum alloy Clear anodize −20〜 80℃
LMUF −20〜110℃
SLMU −20〜 80℃
SLMUS −20〜110℃

■Sizes and Dimensions

(Shaft DIA.) Seating face - Shaft center Height Width Length
φ5 7 14 22 33
φ6 9 18 30 48
φ8 11 22 34 58
φ10 13 26 40 68
φ12 15 28 42 70
φ13 19 30 44 75
φ16 15 38.5 50 85
φ20 21 41 54 96
φ25 26 51.5 76 130
φ30 30 59.5 78 140
φ35 34 68 90 155
φ40 40 78 102 175
φ50 52 102 122 215

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Selection steps

■Linear bushing selection steps

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Accuracy Info

■Accuracy of Linear Bushing with Pillow Block (Double type)

Shaft bore DIA.
(Shaft DIA.)
Seating face - Shaft center
tolerance
Tolerance
φ5 0/-0.008 ±0.02
φ6 0/-0.010
φ8
φ10
φ12
φ13
φ16
φ20 0/-0.012
φ25
φ30
φ35 0/-0.015
φ40
φ50

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Performance info.

■Load capacity of Linear Bushing with Pillow Block (Double type)

(Shaft DIA.) Basic load rating Allowable static
moment
(N・m)
C (Dynamic) N C0 (Static) N
φ5 263 412 1.38
φ6 324 529 2.18
φ8 431 784 4.31
φ10 588 1100 7.24
φ12 657 1200 10.9
φ13 813 1570 11.6
φ16 1230 2350 19.7
φ20 1400 2740 26.8
φ25 1560 3140 43.4
φ30 2490 5490 82.8
φ35 2650 6270 110
φ40 3430 8040 147
φ50 6080 15900 397

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Technical calculations

■Life of Linear Bushing

When linear systems operate in linear motion while supporting loads, repeated stresses apply on the rolling elements and raceways, eventually causing scale-like flaking due to material fatigue. The total run distance until this flaking appears is defined as linear system's "Life".

The rated life can be calculated with the following formula based on basic dynamic load rating and the load applicable on the bushing.

  • 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: Applicable load (N)

Hardness factor (fH)

In using linear systems, the shaft that balls contact must have sufficient hardness, If adequate hardness cannot be obtained, load rating decreases and life will be reduced as a result.

Fig.-1. Hardness factor

Temperature factor (fT)

When the temperature of linear systems exceed 100℃, hardness of the systems and shafts will be reduced and allowable loads will be reduced compared to being used in room temperature, causing reduction of life.

Fig.-2. Temperature factor

Contact factor (fC)

In general, it is common to use 2 or more linear systems on 1 shaft. In such case, load applicable on each linear system would not be uniform due to machining variations. As the result, allowable load rating on each linear system would vary depending on the number of linear systems used per shaft.

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)

When calculating loads applicable on linear systems, other than the weight of the object, inertial force due to motion speeds, moment loads, and variations of each over time must also be obtained accurately. However, accurate calculation would be difficult due to repeated starts and stops and various shocks and vibrations. Therefore, the Load Factors shown in Table-2 are used to simplify the life calculations.

Application conditions fw
No external shocks or vibrations and
speed is low 15m/min or less
1.0~1.5
No significant shocks or vibration and
med. speed 60m/min or less
1.5~2.0
External shocks and vibrations exist
and the speed is high 60m/min or over
2.0~3.5

Life can be calculated by obtaining running distance per given time period. When the stroke length and the number of strokes are constant, it can be calculated with a formula below.

  • Lh: Life (Hr)
  • L: Rated life (km)
  • Ls: Stroke length (m)
  • n1: Number of cycles per minute (cpm)

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IDEA NOTE One cylinder is able to open and close

Rack and pinion are utilized to synchronize open/close

  • 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.
    In case that the CAD data is found to have been to be used for any purpose other than mentioned above or against the related laws, MISUMI may take legal actions, including the one for blocking the involved user from using CAD data and from accessing to the MISUMI site.
    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 Download (Unit Assembly)

    CAD Download: File Format
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    Thank you for downloading the data.

    Click the Good IDEA! button when you find interesting design tips.


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

    CAD Data Limitations

    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. Unit assembly Data consists of some sub-assemblies.
      It is configured so that each sub-assembly unit can be used as it is or 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 dimensions of the MISUMI parts in the Data, which can be specifed at 1mm intervals, can be edited under historical data.
    6. The Data including the third-part components are made by the Company.

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  • * Unit assembly Data consists of some sub-assemblies.
       It is configured so that each sub-assembly unit can be used as it is or edited.

Application Overview

Purpose

  • Align disarrayed workpieces on a conveyor.
  • When the workpiece reaches the handling station, the workpiece is intercepted by two arms, where it is centered and realigned before being released to pass to the next work station.

Points for use

  • Used in various assembly line or conveying work stations.

Target workpiece

  • Box
    Size: W260 x D200 x H200mm
    Weight: 3kg

Design Specifications

Operating Conditions or Design Requirements

  • Arm (one side) move distance: 100mm
  • External dims.: W670 x D275 x H560mm

Required Performance

  • Positioning accuracy: ±1mm
  • Load 30N

Selection Criteria for Main Components

  • Force to push 200N (100(N) x 2) x 0.4 (Frictional resistance) = 80N, so φ32 air cylinder is selected.

Design Evaluation

Verification of main components

  • Select a cylinder capable of transferring the workpiece.
  • Air cylinder selection
    • Air cylinder output.
    • When air pressure is 0.4Mpa, φ32 cylinder outputs 322N x 0.7 (Effective value) = 225N
    • Since, arm weight x2 (Both sides) x 0.2 (Friction coefficient) + Workpiece x 0.4 (Both sides) = Load
      Arm weight (100N x 2 = 200N) x 0.2 (Friction coefficient) + workpiece 30N x 0.4 = 52N
    • Air cylinder output is 225N, which is sufficiently greater than the 52N load.

Other Design Consideration

  • To avoid damaging the work piece, hard rubber or plastic material is used for the handling pads.

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 Linear Shaft SFJ16-247 4
2 Linear Bushing W/ Pillow Block LHBBW16 4
3 Shaft Supports SHAMN16 8
4 Deep Groove Ball Bearings B6004ZZ 2
5 Cam Followers CFFRS6-16 2
6 Rails For Swich & Sensor SENCF5-120 1
  • The part list above only contains MISUMI parts.
    Part list download (CSV) includes MISUMI and third party components used in this example.
  • For price and shipping date see the Web 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.
    In case that the CAD data is found to have been to be used for any purpose other than mentioned above or against the related laws, MISUMI may take legal actions, including the one for blocking the involved user from using CAD data and from accessing to the MISUMI site.
    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 Download (Unit Assembly)

    CAD Download: File Format
    生成

    Thank you for downloading the data.

    Click the Good IDEA! button when you find interesting design tips.


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

    CAD Data Limitations

    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. Unit assembly Data consists of some sub-assemblies.
      It is configured so that each sub-assembly unit can be used as it is or 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 dimensions of the MISUMI parts in the Data, which can be specifed at 1mm intervals, can be edited under historical data.
    6. The Data including the third-part components are made by the Company.

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