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inCAD Library

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What is inCAD Library?

  • Helpful application examples for mechanical engineers.

The Concept of inCAD Library

  • 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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  • MISUMI may not offer all parts in each application design. Available parts can only be purchased separately not as a unit shown in each application design.
  • MISUMI does not guarantee quality, accuracy, functionality, safety or reliability for the combination of the parts in each application example. Accept these points prior to use.
  • 2014 Copyright MISUMI
  • The data cannot be used for any purposes (including sales promotion) except for designing your machine.
  • All associated CAD is free. Misumi reserves the right at its sole discretion to cancel, terminate or modify this offer.
  • MISUMI may change, add or delete application examples posted without prior notice.
  • MISUMI assumes no responsibilities for any damage incurred resulting from your use of the Service or any change, addition or deletion by MISUMI of the application examples for any reason whatsoever.

inCAD Library Features

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

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No.000230 Adjustable Guide Mechanism
Good IDEA!
0

Easy adjustment using coupling, motor and lead screws.

Relevant category

Lead Screw Support Units

Lead Screw Support Units - Round
Product name Lead Screw Support Units - Round - Fixed Side Radial Bearing Type
Part number MRWZ12
Features Dedicated Bearing Units for Lead Screws. Can be selected according to allowable axial load. Support Side can be purchased in a set by adding -SET when ordering.
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Technical calculations

Selection criteria

Economical as parts to support lead screw.

Available sizes

■Lead Screw Support Units - Round - Fixed Side Radial Bearing Type

Material Surface Treatment
Main Body Stop Plate Set Collar Bearing Nut
1045 Carbon Steel 1018 Carbon Steel 1018 Carbon Steel 1018 Carbon Steel Black Oxide

■Sizes and Dimensions

Shaft Bore Dia. Wrench Flats Bearing Type
Fixed Side
φ8 35 608ZZCNM
φ10 42 6000ZZCNM
φ12 44 6001ZZCNM
φ15 52 6002ZZCNM

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Technical Calculations

■Lead screw・Lead screw nut selection steps

Calculate Contact Pressure P and Sliding Velocity V based on conditions of use to check that no abnormal wear will occur.
Plot the calculated P and V values against the PV value graph and confirm the intersection.
If the intersection falls inside of line (1) and (2), it is determined that abnormal wear would not occur.

Determine conditions of use.

↓

Lead screw・lead screw nut temporary selection

↓

Calculate (1) Contact Pressure P, (2) Sliding Velocity V,
Confirm if it is inside of (1) and (2) on PV value graph.

↓

Calculate screw efficiency η and load torque T.

(Axial load, rotational speed)

 

(Lead screw・lead screw nut material)

↑

(If not good)

PV Value graph

  •                                         (1) Steel (Lubrication) - Brass
  •                                         (2) Steel (Non Lubrication) - Plastic
PV Value graph

① Contact surface pressureP(N/mm2)

Contact surface pressureP
  • Fs: Shaft axial load(N)
  • F0: Allowable Dynamic Thrust (N)　-> Nuts for Lead Screw Specifications
    Thrust when contact surface pressure of the lead screw and nut becomes 9.8 (N/mm2).
  • α：9.8(Brass)　0.98(Resin)

② Sliding speed V (m/min)

Sliding speed V
  • d2: Screw shaft effective Dia. -> From lead screw specifications table
  • d: Screw Shaft Lead Angle (degree)　-> Lead Screw Specifications
  • n: Screw shaft rotation per minute (nim-1)

③ Screw efficiency η

Screw efficiency η
  • μ: dynamic friction coefficient
  • d: Screw shaft lead angle (deg.)

<Dynamic friction coefficient reference value >

Thread Shaft Nuts for Lead Screws Dynamic friction coefficient μ
Steel (Lubricated) Brass 0.21
Steel (Unlubricated) Polyacetal / PPS Resin
with Sliding Property		 0.13

④ Load torque (N・cm)

Load torque
  • Fs: Shaft axial load
  • η: Screw efficiency
  • R: Lead (cm)

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Coupling

Couplings
Product name Couplings - Slit, Clamping
Part number CPLCN32-12-12
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Accuracy Info | Performance info.

Selection criteria

With zero backlash suitable for accurate positioning.

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Available sizes

■Couplings - Slit, Clamping

Part Material Surface Treatment Accessory
Main Body Alum. Alloy Anodize Hex Socket Head Cap Screw
Disc Pin Stainless Steel -

■Slit Coupling Clamping Type (Aluminum, Normal Type)

O.D. Shaft bore Dia. (Select drive/driven sides) Overall Length Clamp Screw Dia.
φ4 φ5 φ6 φ6.35 φ7 φ8 φ9.525 φ10 φ12 φ14 φ15 φ16
φ12 ○ ○ 18.5 M2
φ16 ○ ○ 23 M2.5
φ20 ○ ○ ○ ○ 26
φ25 ○ ○ ○ ○ ○ ○ 31 M3
φ32 ○ ○ ○ ○ ○ 41 M4
φ40 ○ ○ ○ ○ ○ ○ ○ 56 M5

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Accuracy Info

■Accuracy of coupling

O.D. Allowable Angular Misalignment
(°) 		Lateral Misalignment
(mm)
φ13 2 0.1
φ16
φ20
φ25 0.15
φ32
φ40
φ50 0.2

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Performance info.

■Load info. on coupling

O.D. Allowable Torque
(N・m) 		Max. Rotational Speed
(r/min) 		Moment of Inertia
(kg・m²)
φ12 0.4 52000 7.8×10−8
φ16 0.5 39000 3.4×10−8
φ20 1 31000 9.1×10−7
φ25 2 25000 2.6×10−6
φ32 4 19000 9.7×10−6
φ40 8 15000 3.3×10−5

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Rails for Switches and Sensors

Rails for Switches and Sensors
Product name Rails for Switches and Sensors- Aluminum Type L Dimension Configurable, Shape A,B,C
Part number SENBF3-140
Features Rails for Switches and Sensors with the overall length configurable and with two through holes machined
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes

Selection criteria

Adjusting sensor position is easy.

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Available sizes

■Rails for Switches and Sensors- Aluminum Type L Dimension Configurable, Shape A,B,C

Material Surface Treatment
6063-T5 Aluminum Alloy Clear Anodize

■Sizes and Dimensions

Applicable Nut
Size 		Length
(Configure in 1 mm increments)
3 50-200
4
5

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IDEA NOTE Easy lead screws adjustment

Connecting lead screws with coupling allow easy adjustments where guide are always symmetrical to each other compared to center mounting blocks and coupling.

  • 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.

    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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  • * 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

  • Purpose
    • To automatically change the distance between workpiece guides during setup change.
  • Operation
    • By connecting right and left hand screw with coupling and rotating only one lead screw, the distance between guide plates is adjusted without changing the center of reference.

Points for use

  • Thanks to the coupling that connects the lead screws, adjusting only one side will also adjust the side, maintaining the center between the guide plates.

Target workpiece

  • Shape: cardboard box
  • Size: W330 x D280 x H110 mm
  • Weight: 2 kg

Design Specifications

Operating Conditions or Design Requirements

  • Target workpiece width range: 230 to 330 mm
  • Outer dimensions: W721 x D420 x H227 mm

Required Performance

  • Lead Screw
    Single pitch error:±0.02mm
    Accumulated pitch error: ±0.15/300 mm
    Allowable Load:33.8kg

Selection Criteria for Main Components

  • Coupling
    • A coupling with an allowable torque of 4 [N·m], small backlash backlash and an allowable torque of 0.66 [N·m] is selected.

Design Evaluation

Verification of main components

  • Select motor, lead screws and linear bushings based on the workpiece load and workpiece collision load.
  • Confirmation of thrust in axial direction
    • Conditional value: workpiece mass W = 2kg, gravitational acceleration g = 9.8m/s², friction coefficient of lead screw μ = 0.21, lead of lead screw: R = 3mm = 0.003m, lead angle of lead screw: θ = 3.77°, rated torque of geared motor with reduction ratio i = 3: T = 0.66N·m, friction coefficient exerted on workpiece: δ = 0.5
    • Screw efficiency η
      η=(1-μ×tanθ)/(1+μ/tanθ)=(1-0.21×tan3.77)/(1+0.21/tan3.77)=0.24
      Thrust of lead screw:F=2π×η×T/R=2π×0.24×0.66/0.003
      =331.8N
    • Force required to move workpiece: P
      P=M×g×σ=2×9.8×0.5=9.8N and F > P, the necessary force can be obtained.
  • Allowable load of linear ball bushing when workpiece hits the guide
    • Conditional value: linear bushing maximum horizontal distance X0 = 370.4 mm, linear bushing distance in transfer direction Y0 = 276 mm, distance between transfer axis and load position X1 = 180 mm, vertical distance between linear bushing axis and load position L0 = 170.5 mm, load applied when workpiece collides Wa = 40 N, basic rated static load of liner bushing C0 = 598 N, number of linear bushings to which load is applied when workpiece collides N = 2 pieces
    • Load in transfer direction applied to linear bushing on collision side: Ps=(W/N)+{(X1×W)/2×X0}=(40/2)+{(180×40)/(2×370.4)}=29.72N
    • Load in vertical direction applied to linear bushing on collision side: Pn={(L0×W)/(2×Y0)}={(170.5×40)/(2×276)}=12.36N
      Therefore, resultant force applied to linear bushing:P=√(Ps2+Pn2)=32.19N＜598=CO (Bushing Dynamic load rating)

Other Design Consideration

  • For applications where only small adjustments are needed it is possible to substitute one left and one right hand screw with right/left hand screw and avoid center block and coupling.

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 Lead Screws MTSRK16-275-F30-R12-T30-Q12-S20-E10-BQ15 1
2 Lead Screws MTSLW16-255-F30-V12-S30-Q12-BV15 1
3 Lead Screw Nuts MTSFR16 1
4 Lead Screw Nuts MTSFL16 1
5 Lead Screw Nuts MRWZ12 2
6 Lead Screws MTUZ12 2
7 Couplings CPLCN32-12-12 1
8 Couplings CPLCN32-10-12 1
9 Collars KNCLB12-16-10 2
10 Linear Bushings LMUF12 4
11 Linear Shaft SSFJ12-495 2
12 Retaining Rings STWN21 8
13 Gear Motors(Currently not available） PACMR90-W40-V100-MTB90 1
14 Gear Motors PACMGX90-3 1
15 Photomicrosensor（Currently not available） FPMT65 3
16 Rails For Swich & Sensor SENBF3-140 1
17 Hex Posts LSBWRK6-50 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).
    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.

    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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