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inCAD Library

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  • Helpful application examples for mechanical engineers.

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No.000307 Transfer with Automatic Tension Mechanism
Good IDEA!
11

The slack of the belt is absorbed by an automatic tension mechanism.

Relevant category

Cylinder with Guides

Cylinder with Guides
Product name Cylinder with Guides
Part number MGCLF50-100
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Selection steps | Accuracy Info | Performance info.

Selection criteria

Use this item to apply steady tension to chains.

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Available sizes

■Cylinder with Guides

Cyl. Bore Bearing Sliding Bearing Linear Bushing Cylinder Width
(mm) 		Overall Length
(Listed below + St) 		Thickness
(mm)
St 10 20 25 30 40 50 75 100 10 20 25 30 40 50 75 100
φ12 ○ ○ ― ○ ○ ○ ○ ○ ○ ○ ― ○ ○ ○ ○ ○ 56 39 22
φ16 ○ ○ ― ○ ○ ○ ○ ○ ○ ○ ― ○ ○ ○ ○ ○ 62 43 25
φ20 ― ○ ― ○ ○ ○ ○ ○ ― ○ ― ○ ○ ○ ○ ○ 72 47 30
φ25 ― ○ ― ○ ○ ○ ○ ○ ― ○ ― ○ ○ ○ ○ ○ 86 47.5 38
φ32 ― ― ○ ― ― ○ ○ ○ ― ― ○ ― ― ○ ○ ○ 112 48
φ50 ― ― ○ ― ― ○ ― ○ ― ― ― ― ― ― ― ― 146 72 60

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Selection steps

■Cylinder Selection Steps

1. Define various conditions of the load.

↓

2. Calculate cylinder output (In case of double acting type)

↓

3. Determine the cylinder bore

↓

4. Determine the theoretical reference speed.

↓

5. Verify the cylinder's cushion mechanism.

↓

6. Verify the lateral load applied to the cylinder.

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Accuracy Info

■Non-rotating Accuracy of Cylinder with Guides

Non-rotating accuracy: A value of runout due to clearances between the guide rod and bearings represented in an angle of rotation about the piston rod.

Cyl. Bore Non-rotating Accuracy of Link Bar Tip
Sliding Bearing Linear Bushing
φ12 ±0.12° ±0.06°
φ16 ±0.10° ±0.06°
φ20 ±0.09° ±0.05°
φ25 ±0.08° ±0.05°
φ32 ±0.06° ±0.04°
φ50 ±0.05° －

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Performance info.

■Cylinder with Guides Operating Pressure Range

Min. Operating Pressure (MPa):　0.1
Max. Operating Pressure (MPa):　1.0
Pressure Resistance (MPa):　1.5

■Theoretical Thrust

（N)

Cyl. Bore
(mm) 		Operating Direction Operating Pressure (MPa)
0.4 0.5
12 Outstroke 45 57
Instroke 34 42
16 Outstroke 80 101
Instroke 60 75
20 Outstroke 126 157
Instroke 94 118
25 Outstroke 196 245
Instroke 151 189
32 Outstroke 322 402
Instroke 241 302
50 Outstroke 785 982
Instroke 660 825

■Allowable Lateral Load

（N・m)

Cyl. Bore
(mm) 		Stroke (mm)
10 20 25 30 40 50 75 100
12 24 19 16 14 12 37 31
16 40 33 28 24 21 55 46
20 52 45 39 35 55 46
25 69 60 52 47 73 62
32 166 131 107 91
50 296 245 241

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IDEA NOTE Automatic tension mechanism utilizing a cylinder with a guide

With a cylinder used on the sprocket for belt tension, force is always applied in the belt straining direction.

  • 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).

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    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.
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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

  • Use a cylinder attached to a sprocket as a take up. The force should be applied to add tension on the belt.

Target workpiece

  • Shape: aluminum block
  • Size: W230 x D60 x H60mm
  • Weight: 1kg

Design Specifications

Operating Conditions or Design Requirements

  • Outer dimensions: W979 x D380 x H683mm
  • Conveyor feed speed: 100mm/s

Required Performance

  • Load: 90N

Selection Criteria for Main Components

  • A motor with a torque of 3.2N·m and a moment of inertia of 3.2 x 10⁻²kgm² or higher is selected.

Design Evaluation

Verification of main components

  • [Selection of motor]
    Mass of chain and workpiece: M = 9kg
    Sprocket diameter: D = 98mm
    Sprocket weight: m = 1.4kg, number of sprockets: 6, efficiency of chain and sprocket: η = 0.8, friction coefficient of sliding surface: μ = 0.3
    Friction force of sliding surface: F
    F = Mgμ = 9 x 9.8 x 0.3 = 26.5N
    Load torque: T
    T = FD/2η = 26.5 x 98 x 10⁻³/2 x 0.8 = 1.6N
    If we use 2 as the safety factor, T = 1.6 x 2 = 3.2N
    Moment of inertia: J
    Chain and workpiece: J 1
    J1 = M{πD/2π｝² = 9{π x 98 x 10⁻³/2π}² = 2.2 x 10⁻²kgm²
    Sprocket: J 2
    J2 = 1/8 x mD2 = 1/8 x 1.4(98 x 10⁻³)2 = 0.17 x 10⁻²kgm²
    As there are 6 sprockets,
    J 3 = 0.17 x 10⁻² x 6 = 1 x 10⁻²kgm²
    Total: J = J 1 +J 3 = 3.2 x 10⁻²kgm²

Other Design Consideration

  • The cylinder for belt tension always applies force in the belt straining direction.
  • The bracket of the idler is welded with a shaft and a plate.

Explore Similar Application Examples

Page - / -

Part List

No. Part Name Sample Picture MISUMI Part Number
(click the Part Number below for details) 		Quantity
1 Retaining Rings/External/C-Type STWN20 5
2 Deep Groove/Double Shielded B6004ZZ 10
3 Cylinders with Twin Guides MGCLF50-100 1
4 Sensors for Cylinders ME34L1 2
  • The part list above only contains MISUMI parts.
    Part list download (CSV) includes MISUMI and third party components used in this example.
  • 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).

    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.

    Good IDEA!

    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.

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

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