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No.000117 Multi-Stroke Cam Mechanism

Multiple-step stroke with a minimum actuator

Related Category

Short Stroke Ball Bushings

Product name Short Stroke Ball Bushings/Single/Double
Part number SLBUS16
Features Capable of rotary motion, finite linear motion, and the combination of both.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Bushing that can handle rotational and linear motions.

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Available sizes

■Short Stroke Ball Bushings - Single / Double

Outer Cylinder Ball Retainer Operating Ambient Temperature
Material Hardness Material Material
EN 1.3505 Equiv. 58HRC- EN 1.3505 Equiv. EN AW-5052 EquivalentS -20 ~ 110°C
EN 1.4125 Equiv. 56HRC ~ EN 1.4125 Equiv. -20 ~ 120°C

■Sizes and Dimensions.

(Shaft DIA.) O.D. Overall Length Max.
Stroke
Ø5 Ø10 15 13
Ø6 Ø12 19 15
Ø8 Ø15 24 24
Ø10 Ø19 29 30
Ø12 Ø21 30 32
Ø13 Ø23 32 34
Ø16 Ø28 37 40
Ø20 Ø32 42 46

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Selection steps

■Selection Steps of Short Stroke Ball Bushings - Single / Double

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Accuracy Info

■Accuracy of Short Stroke Ball Bushings - Single / Double

(Shaft DIA.) Outer Cylinder DIA. Overall Length
Tolerance
Tolerance Tolerance
Ø5 0/-0.008 Ø10 0/-0.009 0/-0.12
Ø6 0/-0.009 Ø12 0/-0.011 0/-0.2
Ø8 Ø15
Ø10 Ø19 0/-0.013
Ø12 Ø21
Ø13 Ø23
Ø16 Ø28
Ø20 0/-0.010 Ø32 0/-0.016

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Performance info.

■Load Rating of Short Stroke Ball Bushings - Single / Double

(Shaft DIA.) Basic Load Rating
C (Dynamic) N Co (Static) N
Ø5 131 106
Ø6 210 164
Ø8 323 278
Ø10 499 408
Ø12 722 579
Ø13 773 634
Ø16 1330 1029
Ø20 1609 1517

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Keyless Bushings - Compact

Product name Keyless Bushings/Compact
Part number MLRS16
Features A hub (such as pulleys, gears and sprockets) can be easily connected with a shaft by screwing.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Fine rotational position adjustment for both the rotating actuator and eccentric cam.

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Available sizes

■Keyless Bushings - Compact

Body Material Surface Treatment
EN 1.1191 Equiv. -
EN 1.1191 Equiv. Electroless Nickel Plating
EN 1.4301 Equiv. -

■Sizes and Dimensions.

Shaft Bore Dia. Outer Ring DIA.
(pilot)
Inner Ring O.D.
(shoulder)
Shoulder Height Pilot Length
Ø10 Ø18 Ø31.5 11 12
Ø12 Ø20 Ø33.5
Ø14 Ø22 Ø35.5
Ø15 Ø23 Ø38.5 13 14
Ø16 Ø24 Ø39.5
Ø17 Ø25 Ø40.5
Ø18 Ø26 Ø46 16
Ø19 Ø27 Ø47
Ø20 Ø28 Ø48

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Accuracy Info

■Recommended Tolerance of Applicable Shaft and Hub.

Tolerance Finish Surface Roughness
Shaft O.D. h7(g6) Ra1.6 or less
Hub I.D. H7 Ra3.2 or less

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Performance info.

■Load info of the MechaLock Standard Type (with Centering Function)

Shaft Bore Dia. EN 1.1191 Equiv./- EN 1.1191 Equiv./Electroless Nickel Plating EN 1.4301 Equiv. /-
Max. Allowable
Torque
Allowable Thrust Load Screw Tightening
Torque
Max. Allowable
Torque
Allowable Thrust
Load
Screw Tightening
Torque
Max. Allowable
Torque
Allowable Thrust
Load
Screw Tightening
Torque
(N・m) (kN) (N・m) (N・m) (kN) (N・m) (N・m) (kN) (N・m)
Ø10 44 8.71 4 44 8.71 4 14 2.75 2.7
Ø12 53 53 17
Ø14 61 61 20
Ø15 115 15.3 8 115 15.3 8 38 5 5.6
Ø16 123 123 41
Ø17 131 131 43
Ø18 210 23.2 14 210 23.2 14 68 7.4 9.6
Ø19 221 221 71
Ø20 233 233 75

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IDEA NOTE Multi-step stroke is achieved with minimum actuation.

The use of an eccentric tapered cam along with an actuator allows for a multi-step stroke to be possible.

IDEA NOTE Sets three positions via stroke and cam.

Cam rotation and linear stroke allow for three different positions to be set.

  • 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.
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    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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       Each sub-assembly unit can be used as it is or can be edited.

Application Overview

Purpose

  • To transfer workpiece using multiple steps.
  • [Operation]
    A linear movement/rotation actuator is used as a drive to preform a multi-step stroke with the help of an eccentric tapered cam.
    The details of the multi-step stroke are shown below.
    Position 1: Initial state in which the actuator is not operated.
    Position 2: State in which the eccentric cam is rotated by 180° by the rotary stroke of the actuator.
    Position 3: Tapered cam is moved 29.8mm by the linear stroke of the actuator.

    A condition in which the center of the rotation of an object is located at a different position than the center axis that passes through the center of gravity of the object.

Target workpiece

  • Shape: circuit board carrier, tray.
    size: W48 x D80 x H54mm.
    weight: 0.6kg.

Design Specifications

Operating Conditions or Design Requirements

  • Outer dimensions: W135 x D500 x H232.5mm
  • Vertical stroke: 30mm
  • Cylinder stroke: 29.8mm

Required Performance

  • Weight: 1.1kg.

Selection Criteria for Main Components

  • Swing cylinder.
    • Torque of 0.4 N・m or more at oscillation angle of 180 degrees.
    • Thrust in horizontal direction of 30 N or higher.

Design Evaluation

Verification of main components

  • Verify if the cylinder can withstand the load torque and weight of the workpiece.
  • Lifting thrust.
    • Conditional value: workpiece mass W1 = 1.1 kg, gravitational acceleration g = 9.8 m/s ².
      Cylinder thrust: F1 = 196 N, angle of eccentric cam: θ1 = 20°
      Cylinder lifting thrust: F2 = F1/tan20° = 196/tan20° = 538.5N
      Load F3 = Wg = 1.1 x 9.8 = 10.1N
      F2 > F3.
  • Torque.
    • Conditional value: cylinder effective torque T1 = 0.422 N・m (air pressure 0.4 MPa),
      Maximum distance from eccentric cam to load on the drawing when cylinder has stroked by 29.8 mm L1 = 0.0325 m
      Load torque T2 = F3 x L1 = 0.328 N・m
      T1 > T2.

Other Design Consideration

  • By setting the length of the eccentric portion of the cam as twice the length of the vertical stroke produced by the taper, equal stroke is enabled.

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 Compact Nuts SNTRCS8 1
2 Linear Bushings SLBUS16 2
3 Mecha Lock MLRS16 2
4 Stop Pins USSTEH10 1
5 Linear Shaft SSFAZ12-90-F15-B6-P5-N5-SC5 2
6 Linear Bushings SLHIFRS12 2
7 Rotary Shaft SFR16-270.5 1
8 Flow Rate Control Valves SPSNL6-1 4
  • The part list above contains only MISUMI parts.
    The list of parts and machined products of other manufacturers than MISUMI can also be downloaded by part list download (CSV).
  • You will find information on price and shipping days, in the Online Quote and 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.
    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 Data Download (Unit Assembly)

    CAD Data Download: File Format
    生成

    Thank you for downloading the data.

    Click the Good IDEA! button when this application example is helpful.


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

    Cautions on the CAD data

    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. The CAD data unit assembly consists of sub-assemblies.
      Each sub-assembly unit can be used as it is or can be 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 Data including the third-part components are made by the Company.

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