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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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  • 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.
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  • The data cannot be used for any purposes (including sales promotion) except for designing your machine.
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  2. Over 300 design application ideas
    collected from dozens of industries!

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No.000175 Workpiece Gripper Unit with Suction Cups

Fixing the sliding suction cup at hands.

Suction Cup Fittings (With Pads)

Product name Suction Cups - with Fitting, Spring Type, Shape K
Part number MVPKN20
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Conveniently includes all assembly items and pads.

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Available sizes

■Suction cup with fitting (With pad) Fixed type, Top tube connection: One touch type (Shape K)

Body Material Surface Treatment Pad Shape Pad Material
Brass Electroless
Nickel Plating
Standard Nitrile Rubber
Conductive Silicon Rubber
Fluorinerubber
Deep type Nitrile Rubber
Fluororubber

■Sizes and Dimensions

Pad Shape Suction Cup Connection Dia. Overall Length Mounting thread DIA. x Pitch
O.D. Length
Standard φ2 4 φ4 28.3 M6×0.75
φ3
φ4
φ6 7 φ6 32.6 M10×1.0
φ8 5.5 31.1
φ10 8 34.1 M12×1.0
φ15 9 35.1
φ20 10 37.5 M14×1.0
Deep type φ20 11 38.7
φ25 12 39.7
φ30 14 41.7
φ40 17.5 45.2

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Ball Splines

Product name Ball Splines - Both Ends Tapped
Part number BSHN8-130-M4-N4
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Compact and highly rigid linear guide

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Available sizes

■Ball spline (Both ends tapped)

Spline
Shafts
Material 52100 Bearing Steel 440C Stainless Steel
Hardness 58HRC~ 55HRC~
Nut Material 4115 Alloy Steel 440C Stainless Steel
Hardness 58HRC~ 55HRC~
Shape Round Flange
Compact Flange -
Straight

■Dimensions

Spline Shafts Nut
Name No. Shaft Dia. Overall Length Pilot DIA.
6 φ6 60-400 φ14
8 φ8 φ16
10 φ10.4 90-600 φ21
13 φ13.4 100-600 φ24
16 φ16.6 110-600 φ31

* Length selection range will vary according to material and nut configuration. Please see the product pages for details.

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Selection steps

■Ball spline selection steps

Determination on Operating Conditions
(Load, Torque, Feed distance, Life)

Temporary selection of ball
spline specifications
(Spline shaft Dia., spline shaft length, overall length are temporarily
selected based on application conditions)

Basic safety check
  • Allowable Load
  • Operating Life

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Accuracy Info

■Ball spline shaft accuracy

(μm)

Name
No.
Spline
shaft DIA.
Nut O.D. runout
(max.)
  Max. Runout of Spline Axis Line
Length -200 201-315 316-400 401-500 501-
6 φ6 27 72 89 126 163 -
8 φ8
10 φ10.4 33 59 83 103 82 102
13 φ13.4 39 56 71 83 62 75
16 φ16.6

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Performance info.

■Ball spline rated loads

Name
No.
Basic Rated Torque Basic Load Rating
Dynamic (Nm) Static (Nm) Dynamic (kN) Static (kN)
6 3.8 7 1.2 2.1
8 4.8 8.7 1.2 2.1
10 11 21 2.4 4.3
13 20 37 3.3 5.9
16 51 93 6.2 11.1

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Technical calculations

■Ball spline life calculations

Ball spline's running life is calculated with the formula below.

For radial load

For torque load

  • L: Life (km)
  • fT: Temperature factor
  • fh; Hardness factor
  • fp: Rated load ratio
  • fw: load factor
  • L0: Rated life (50km)
  • C: Basic Dynamic Load Rating (N)
  • F: Applicable radial load (N)
  • Ct: Basic dynamic torque rating (N・m)
  • T: Applicable torque (N・m)

Ball spline's life time is calculated with the formula below.

  • Lh: Run time (hr)
  • L: Running life
  • St: Stroke length
  • n: Cycles per minute (cpm)

■Temperature Factor (ft)

■Hardness Factor (fh)

■Rated load ratio (fp)

Name No. Spline shaft DIA. Distributed load Direct Download
6 φ6 1 1
8 φ8 1 1
10 φ10.4 1 0.71
13 φ13.4 1 0.71
16 φ16.6 1 0.68

■Load factor (fw)

Conditions of Use Load factor (fw)
No external shocks or vibrations
(Low speed 1~2 15m/min or less)
1-2
Some shocks or vibration
(Med. speed 2~3 60m/min or less)
2-3
Severe shocks and vibrations exist
(High speed 3 or more 60m/min or over)
3-

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Shaft Collar

Product name Shaft Collars - Slit
Part number PSCS10-10
Features Shaft Damage from tightening Avoidable
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Effective item used as a simple stopping mechanism.

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Available sizes

■Shaft Collars - Slit

Material Surface Treatment
1045 Carbon Steel Black Oxide
Electroless Nickel Plating
304 Stainless Steel
2017 Aluminum Alloy
Clear Anodize
Black Anodize

■Sizes and Dimensions

Material Shaft Bore Dia. Thickness
(width)
O.D. Fastening Bolt Dia.
(Coarse)
1045 Carbon Steel

304 Stainless Steel
φ3 8 φ16 M3
φ4 8 φ18
φ5 8 φ20
10 φ22 M4
φ6 8 φ20 M3
10 M4
φ8 8 φ25 M3
10 M4
12 φ30 M5
15 M6
φ10 8 M3
10 M4
12 M5
15 φ35 M6
φ12 8 φ30 M3
10 M4
12 M5
15 φ35 M6
φ13 10 φ30 M4
12 φ34 M5
15 φ35 M6
φ15 10 φ34 M4
12 φ35 M5
15 φ40 M6
φ16 10 φ35 M5
12
15 φ40 M6
φ18

φ20
10 M5
12
15 φ45 M6
φ25 12 M5
15 φ50 M6
20 φ55
φ30 15
20 φ60 M8
φ35 15 M6
φ40 18 φ70 M8
φ50 22 φ85 M10
2017 Aluminum Alloy φ3 8 φ16 M3
φ4 8 φ18
φ5 8 φ20
φ6 8
φ8 8 φ25
10
φ10 10 φ30 M4
φ12 10
φ13 10
φ15 10 φ34
φ16 10 φ35 M5
12
φ20 10 φ40
12
15
φ25 12 φ45
15
φ30 15 φ55 M6
φ35 15 φ60
φ40 18 φ70 M8
φ50 22 φ85 M10

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Accuracy Info

■Accuracy of shaft collars

I.D. Tolerance +0.05/+0.01
O.D. Tolerance ±0.1
Overall Thickness (width) Tolerance ±0.1

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IDEA NOTE Fixing the sliding suction cup at hands.

By attaching a cushion to the fixed type suction cup, errors in work piece heights can be amended and fixed.

  • 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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  • * 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
    • Using suction cups, various plastic work pieces with different step heights can be transported without changing the setup.
  • Operation
    • When work pieces vary, changing the suction cups is unnecessary. The suction cups unit slide up and down the spline shaft to absorb the different heights of the work pieces. Horizontal transportation of the work piece is conducted by fixing the upper part of the spline shaft with an air chuck.

Points for use

  • Transportation of irregular shaped work pieces in their horizontal posture is possible by chucking the slide of the suction cup.

Target workpiece

  • Shape: Plastic cases with height differences.
  • Size: W 120 x D 100 x H 15 (allowable difference in step difference 10 mm)
  • Weight: 800 g

Design Specifications

Operating Conditions or Design Requirements

  • Suction cup stroke 15 mm
  • Suction cup maximum reaction force: 7.93N x 2 (including weights of the guide, etc.)
  • Hand gripping force: About 70N (air pressure 0.4MPa)
    70×70%=49N
  • External size: W 100 x D 60 x H 230 mm

Required Performance

  • Allowable transportable load: 8 N

Selection Criteria for Main Components

  • Gripping force of the air chuck: >= 46.2N
    Select an air chuck with a gripping force of 49 N.

Design Evaluation

Verification of main components

  • Verify the transportable load limit by the air chuck for the feasibility of transporting the work pieces.
  • Check the allowable transportable weight by air chuck gripping
    • Conditional values: workpiece weight: M1 = 800g = 0.8kg, weight of a structure gripped by the air chuck: M2 = 0.4kg, gravitational acceleration g = 9.8 m/s², friction coefficient μ = 0.5 (rubber vs. metal), spring constant of the spring: k = 0.2 N/mm, maximum deflection of the spring: L = 21.5 mm, gripping force of the air chuck: H = 49 N
    • Maximum downward load by the springs (2 pieces): S = k x L x 2 = 0.2 x 21.5 x 2 = 8.6N
    • Downward load by the structure and springs: W = M2 x g + S = 0.4 x 9.8 + 8.6 = 3.9 + 8.6 = 12.5 N
    • Maximum transportable weight with the chuck: P = H x μ = 49 x 0.5 = 24.5 N
      Allowable transportable weight: Q = P - W = 24.5 - 12.5 = 12.0 N
    • Downward load of the workpiece: N = M1 x g = 0.8 x 9.8 = 7.8N This corresponds to 65% (=7.8/12×100) of the allowable transportable weight, and thus, the workpiece can be transported.
  • Checking the allowable transportable weight of the suction cup
    • Conditional values: Pad size = φ 20mm ∴ pressure receiving area S = 3.14cm², vacuum pressure P = - 80 kPa, safety factor t = 4
      Sling up capacity: W [N] = P x S x 0.1/t= 80 x (3.14 x 4pieces) x 0.1/4 = 25.1N

      ⇒Allowable transportable weight of the air chuck 24.5N ≦ allowable transportable weight of the suction cup 25.1N Thus, the workpiece can be transported.

Other Design Consideration

  • By sliding the suction cup up and down using the guide, irregular shaped work pieces can be transported.
    The orientation of irregular shaped work pieces can be retained by holding and fixing the slide with a chuck.
  • Rubber pads are affixed on the inner sides of the chuck grips to retain the position of the spline shaft.

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 Suction Cups - with Fittings MVPKN20 4
2 Ball Spline BSHN8-130-M4-N4 2
3 Shaft Collars PSCS10-10 2
4 Compression Springs WY13-55 2
5 Washers for Compression Springs SPGCC15-11-8 4
6 Hex Posts PLSBRK7-130 4
7 Rubber Sheets RBTMA1-5 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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