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

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SNS: 

No.000207 Pitch Feed Mechanism

Mechanism to move carts down a line.

Relevant category

Holder

Product name Holders - Side Mount, Flange/Bar Type
Part number HLRASW25
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Select a sturdy standard product with a long and compact design.

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Available sizes

■Holders - Side Mount, Flange/Bar Type

Material Surface Treatment Surface Hardness
1045 Carbon Steel Tufftride® 500HV~
304 Stainless Steel Nitriding Treatment 1000HV~
Hard Chrome Plating 700HV~

■Sizes and Dimensions

(Supporting connector part Dia.) Connector Part Keyway Length Connector Part Keyway Width (Supporting Joint Hex Size) Overall Depth (Overall Thickness) Overall Width Overall Height 1045 Carbon Steel 304 Stainless Steel
Tufftride® Nitriding Treatment Not Treated Hard Chrome Plating
φ4 4 4.5 6 8 30 10
φ6 6.5 8 34 13
φ7 8 10 36 15
φ8 6 9 12 10 42 18
φ10 11 14 11 44 20
φ13 8 14 17 13 52 24
φ16 18 21 56 30
φ18 12 20 23 17 66 34
φ21 23 26 70 36
φ25 15 27 30 21 84 43
φ27 20 29 32 27

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Accuracy Info

■Accuracy of Holder, Side Mount, Flange Type

Supporting Connector Part Dia. Tolerance: 0/-0.1

Connector Part Keyway Width Tolerance: +0.1/0

Connector Part Keyway Length Tolerance: 0/-0.05

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Linear Guide

Product name Linear Guides - Extra Super Heavy Load, With Resin Retainer, Interchangeable, Light Preload
Part number SEWZ42-1000
Features With No Mutual Ball Contacts, Resin Retainer provides Low-Noise and Smooth Movements.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

A high priority is placed on linear motion performance over dust prevention because of the use inside of the booth.

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Risk info.

Dust protection facility is required depending on the ambient environment.

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Available sizes

■Linear Guides - Extra Super Heavy Load, With Resin Retainer, Interchangeable, Light Preload

Material Hardness
Carbon Steel 58HRC-

■Sizes and Dimensions

Number of Blocks Block Width Block Length Overall Height Rail Length Range
1 63 91.8 30 220-1960
70 107 36
90 124.6 42 280-1960
2 63 91.8×2 pcs. 30 220-1960
70 107×2 pcs. 36
90 124.6 x 2pcs. 42 280-1960

* Please see the product pages for details of selectable sizes.

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Selection steps

Linear guide selection steps

Determination on Operating Conditions
(Moving mass, feed rate, motion pattern, life)

Temporary selection of linear guide specifications
(Block type, overall height, rail length are temporarily selected according to the conditions of use.)

Basic safety check
  • Allowable Load
  • Operating Life
  • Preload

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Accuracy Info

■Preload and Accuracy Reference (Linear Guides for Extra Super Heavy Load with Plastic Retainers, Interchangeable, Light Preload)

(μm)

Radial Clearance H30・H36 -5~0
H42 -7~0
H Dimension Tolerance ±20
Pair variation of H 15
Tolerance of dims. W2 ±30
Pair variation of W2 25

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Performance info.

■Rated Load of Linear Guide (Linear Guides for Extra Super Heavy Load with Plastic Retainers, Interchangeable, Light Preload)

Overall Height Basic Load Rating Allowable Static Moment
C (Dynamic) kN C0 (Static) kN MA
N・m
MB
N・m
Mc
N・m
30 21.6 44.5 360 305 298
36 32.0 62.5 615 515 490
42 46.0 91.5 1000 885 870

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Technical Calculations

Operating Life Calculation for Linear Guides

Operating Life
When the linear guide is loaded in linear reciprocating motion, scaly damages called flaking appear due to material fatigue as the stress works on the rolling elements (steel balls) and the rolling contact surfaces (rails) constantly. Total travel distance until the first flaking occurs is called the life of linear guides.
Rated Life
Rated life is the total travel distance that 90% of linear guides of the same type can reach, under the same conditions, with no occurrence of flaking damage. Rated life can be calculated with the basic dynamic load rating and the actual load applied on the linear guides, as shown below.
Load must be calculated before actually using linear guides. To obtain loads during linear reciprocating motion, it is necessary to fully consider vibrations and impacts during motion as well as distribution condition of the load applied to linear guides. So, it is not easy to calculation the loads. Operating temperature also critically affects the life. Considering these conditions, the above-mentioned calculation formula will be as follows.
  • L: Rated Life (Km)
  • fH: Hardness Factor (See Fig.1)
  • fT: Temperature Factor (See Fig.2)
  • fC: Contact Factor (See Table-1)
  • fW: Load Factor (See Table-2)
  • C: Basic Dynamic Load Rating (N)
  • P: Applied Load (N)
Hardness factor (fH)

For liner guide applications, sufficient hardness is required for ball contact shafts. Inappropriate hardness causes less allowable load, resulting in shorter life.
Please correct the rated life with the hardness factor.

Temperature factor (fT)

When the temperature of linear guides exceeds 100°C, the hardness of guides and shafts will be reduced, and the allowable loads will also be reduced compared to being used at room temperature, causing a reduction of life. Please correct the rated life with the temperature factor.
* Please use Linear Guides at within the heat resistance temperature ranges shown on product pages.

Contact factor (fC)

Table-1. Contact factor

Number of blocks installed on one rail and contact factor fC

1 1.00
2 0.81
3 0.72
4 0.66
5 0.61

To calculate load applied to the Linear Guides, in addition to object weight, it requires inertia force attributed to motion velocity or moment loads. However, it is difficult to calculation the load accurately due to potential vibrations and shocks caused by other element than repeated start-stop motions during reciprocating motion. Thus, Table-2 load factor helps simplify the life calculation.

Load factor (fW)

Table-2. Load factor

Condition of Use fw
No shocks / vibrations, low speed: 15 m/min. or less 1.0-1.5
No significant shocks / vibrations, medium speed: 60 m/min. or less 1.5-20
With shocks / vibrations, high speed: 60 m/min. or more 2.0-3.5

When calculating loads applicable on linear guides, 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.

Applied Load P Calculation Method
When moment load is applied to each block, convert the moment load into applied load by the following formula.
  • P: Applied Load (N)
  • F: Downward load (N)
  • C0: Static load rating (N)
  • MA: Allowable Static Moment - Pitching Direction (N·m)
  • MC: Allowable Static Moment - Rolling Direction (N·m)
  • Lp: Load point distance (m) in pitching direction
  • Lr: Load point distance (m) in rolling direction

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Cable Carriers

Product name Cable Carriers -Slit-
Part number SE08F-16-028-25
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

To store the wiring/piping in a compact manner

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Available sizes

■Cable Carriers -Slit-

Type Material
Outer Radius Mount Special Plastics (Operating temp. -30 - 100℃) Flammability Standards UL94-V2 Equivalent
Inner Radius Mount

■Sizes and Overall Dimensions

Bending Radius Number of Links Mounting height (Required space height) (Arc + Allowance) Link Pitch
28 1〜37 76 91 130 20
38 1〜38 96 111 160
48 1〜40 116 131 190

■Sizes and Link Cross Section Dimensions

Inner height Overall Height Inner width Overall Width Number of Comb Teeth
14.6 19.3 16 24.2 2
20 28.2 2
30 38.2 3
40 48.2 4
50 58.2 5

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IDEA NOTE Pitch feed mechanism with claw, linear guide, and cylinder

The claw grapples onto the frame/rack, the cylinder drives the claw forward guided by a set of linear guides. The frame/rack can be removed and positioned onto the next workstation.

  • 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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    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

  • Automatic cart conveying system which uses a set of claws, cylinders, and linear guides.

Points for use

  • The claw grapples onto the frame/rack.
  • The cylinder moves the grapple forward guided by a set of linear guides.
  • The cart is then automatically expelled outside the device allowing for removal.

Target workpiece

  • Carts
  • External dimensions: W 680 x D 700 x H 814 mm
  • Work weight: 80 kg ( 20 kg x 4 connected carts)
  • Material: Steel

Design Specifications

Operating Conditions or Design Requirements

  • Workpiece pitch 660 mm.
  • Large cylinder 1 for pitch feed: Workpiece pitch 660 mm + play 40 mm = 700 mm
  • Small cylinder 2 for claw: 75 mm
  • Device external dimensions: W 990 x D 2585 x H 255 mm

Required Performance

  • Cylinder thrust for pitch feed 79 N or more.

Selection Criteria for Main Components

  • Large cylinder
    • One that satisfies required load and stroke.

Design Evaluation

Verification of main components

  • Verify the cylinder thrust for the load required to move the work pieces.
  • Cylinder for pitch feed
    • Conditional values:
      Load: F = mgμ
      Moving mass: m = 80 kg
      Friction coefficient: μ = 0.1
    • Load applied to the cylinder: F = 80 x 9.8 x 0.1 = 78.4 N
    • Load factor: η = 0.7(catalogue value)
    • Extrusion pressure receiving area: A1 = 1963 mm² (catalogue value)
    • Number of cylinders used: n = 2 pieces
    • Operation pressure: P = 0.5 MPa
    • Cylinder extrusion thrust: F1 = n x η x A1 x P Thus, we have the following:
      F1 = 2 x 0.7 x 1963 x 0.5 = 1374.1 N
    • Safety factor: F1/F = 1374.1/78.4 = 17.5 times

Other Design Consideration

  • A mechanism in which separate work pieces are centered and pulled by a claw, reducing the time and cost required to accurately center them.
  • Even though the unit is located close to the floor, through the use of a booth, no dust prevention is required resulting in a reduction of parts. When environmental resistance is required, dust prevention measures can be included.

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 Floating Joints FJRSS18-1.5-15 2
2 Floating Joints HLRASW25 2
3 Flow Rate Control Valves SPSNL6-1 4
4 Flow Rate Control Valves SPSNL8-3 4
5 Reamer Bolts SRMBR8-38 2
6 Oil Free Bushings SHBZ8-20 2
7 Linear Guides - Extra Super Heavy Load SEWZ42-1000 2
8 Cable Carrier SE08F-16-028-25 2
9 Collars KNCLM5-10-20 2
10 Socket Head Cap Screws-with Washer CBST5-12 4
11 Socket Head Cap Screws-with Washer CBST6-15 12
12 Socket Head Cap Screws-with Washer CBST6-20 20
13 Socket Head Cap Screws-with Washer CBST8-25 16
14 Socket Head Cap Screws-with Washer CBST8-30 16
  • 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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