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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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No.000068 Conveyor with escapement

Escapement mechanism for gravity conveyor

Related Category

Engineering Plastic Bearing

Product name Engineered Plastic Bearings/Flat/Retained
Model number EBH26
* Orange colored cells in the table below indicate the part numbers that were actually used in this app. example.

Selection criteria

Lightweight and economical as Guides and Stoppers

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Risk info.

May be damaged by impact loads.

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Available sizes

■Engineered Plastic Bearings - Flat

Material Surface treatment
Surface resin Bearing Ring Shaft
Polyacetal EN 1.4125 Equiv. EN 1.4301 Equiv. -
EN 1.3505 Equiv. Free Cutting Steel Trivalent chromate
Anti-static
Polyacetal
EN 1.4125 Equiv. (Low particle generation) EN 1.4301 Equiv. -
EN 1.4301 Equiv. (Low particle generation)
MC Nylon EN 1.3505 Equiv. EN 1.1191 Equiv.
UHMWPE Trivalent Chromate

■Sizes and Dimensions

O.D. (mm) Bore DIA. (mm) Bearing used
13 4 L - 1044ZZ
14
16 5 695ZZ
18
19 6 696ZZ
20
22
24
26 8 608ZZ
30
35
40 10 6200ZZ
45
50

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Performance info.

■Speeds and loads of Engineered Plastic Bearings

O.D.
(mm)
Load capacity
(N)
13 29.4
14
16
18
19 78.4
20
22
24
26 176
30
35
40 245
45
50

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Cantilever Shaft

Product name Cantilever Shafts/Standard/Both Ends Threaded
Model number PFXAC6-22-F7-MA6
* Orange colored cells in the table below indicate the part numbers that were actually used in this app. example.

Selection criteria

Shape, configurable size and low cost.

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Available sizes

■Cantilever Shafts - Standard, Both Ends Threaded

Material Surface treatment
EN 1.1191 Equiv. Black oxide
Electroless nickel plating
EN 1.4301 Equiv. -
EN 1.7220 Equiv.
Hardness 35 ~ 40HRC
Electroless nickel plating

■Sizes and Dimensions

Shaft DIA.
(mm)
Shaft section length
(Configure in 1mm increments)
Screw DIA. (M Coarse)
3 3 - 50 3
4 3, 4
5 3, 4, 5
6 5 - 100 4, 5, 6
8 5, 6, 8
10 6, 8, 10
12 10 - 100 6, 8, 10, 12
13 6, 8, 10, 12
15 8, 10, 12
16 10, 12, 16, 20
17 6, 8, 10, 12, (15)
18 8, 10, 12, (15)
20 10, 12, (15), 16, 20,
22
25 10, 12 - 24 (4Increment), (15), (25)
30 12 - 24 (4Increment), (15), (25), 30

* M15 and M25 of ( ) dimensions of Screw DIA. will be fine threads.

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Accuracy Info

■Accuracy of Cantilever shafts

Perpendicularity: 0.02

(mm)

Shaft DIA. O.D. Tolerance
g6
3 -0.002
-0.008
4 -0.004
-0.012
5
6
8 -0.005
-0.014
10
12 -0.006
-0.017
13
15
16
17
18
20 -0.007
-0.020
22
25
30

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Bearings with Housing

Product name Direct Mount/Standard/Retained
Model number SBGRA626ZZ
* Orange colored cells in the table below indicate the part numbers that were actually used in this app. example.

Selection criteria

Supports Cantilever shaft and it's easy to install.

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Available sizes

■Bearings with Housings - Direct Mount, Standard, Retained

Material Surface treatment
Bearing Housing Housing
Steel EN 1.1191 Equiv. Black oxide
Electroless nickel plating
EN AW-2017 Equiv. Clear anodize
Stainless steel
EN 1.4301 Equiv. -

■Bearing type

Bearing model number Bore DIA. I.D.
(Bearing O.D.)
Seal
606 6 17 ZZ (Double shielded)
VV (Non-contact rubber seal)
DD (Contact rubber seal)
626 19
698 8

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Accuracy Info

■Accuracy of bearings with housing

(mm)

Shaft DIA. I.D.
I.D. Tolerance: H7
5 14 +0.018
0
16
6 17
19 +0.021
0
8 19
22
24

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IDEA NOTE Workpiece stocking

To prevent queuing of the workpieces cantilever arm also acts as a stopper/separator between two workpieces.

  • Terms of use of CAD data and simplified drawing data
    These terms and conditions (hereinafter referred to as “the Terms") set forth the conditions for downloading CAD data and simplified drawing data provided by MISUMI Corporation (hereinafter referred to as "MISUMI") via www.misumi-europe.com operated by MISUMI Europa GmbH(hereinafter referred to as the "Website"). By downloading CAD data and simplified drawing data posted on the Website (hereafter referred to as “Data”), customers are deemed to have agreed to these Terms.

    1. Purpose of Use
    MISUMI offers the following:
    1)CAD data found on the Website (3D CAD data, 3D Intermediate data and 2D CAD data) for the purpose of informing customers of the characteristics of the products offered by MISUMI or a manufacturer affiliated with MISUMI for use in their designs.
    2)Simplified drawing data (in PDF format) for the purpose of checking the specifications of products.
    2. Characteristics of Data
    There may be a discrepancy in certain characteristics of products (for example: tolerance, surface roughness, chamfer, etc.) between the Data and the actual product. Furthermore, for the purpose of reducing the file size of the Data, some information such as oil groove shapes, threads, or spring shapes, may be removed from the Data.
    3. Disclaimer
    MISUMI carefully creates the Data but makes no warranty as to the quality, accuracy, functionality, safety, reliability, etc., of the Data. MISUMI may at any time, and with no prior notice to customers, revise or delete Data. MISUMI assumes no responsibility for any damage or loss resulting from any revision or deletion of the Data, or any errors in said data. Customers are solely responsible for all aspects of their own designs, including those made using the Data. MISUMI may provide customers with design example data on the Website, but the quality, accuracy, functionality, safety, reliability, etc., of such data are not guaranteed. MISUMI may, at any time, and in its sole discretion, request that the customer cease its use of or destroy the Data in its possession. MISUMI may request the customer provide MISUMI documentation of such destruction.
    4.Prohibited Acts
    Customers or users of the Data, are prohibited from the following acts regarding the Data, in whole or in part:
    (1)Requesting quotations or placing orders for products with third parties other than those authorized by MISUMI or its affiliates;
    (2)Receiving quotations or orders for products from third parties by providing the Data to a third party or using the Data in their own business;
    (3)Displaying links to the Website related to the Data on their own websites, etc., without consent of MISUMI or its affiliates;
    (4)Using or reproducing the Data beyond the scope of the above-stated Purpose of Use;
    (5)Modifying, altering, tampering with, translating, or adapting the Data;
    (6)Selling, transferring, lending, sublicensing, or providing the Data to third parties in any way without consent of MISUMI or its affiliates;
    (7)Altering the content, reverse engineering, decompiling, disassembling, or analyzing the Data;
    (8)Publicly disclosing or exhibiting the Data without consent of MISUMI or its affiliates;
    (9)Using the Data for the purpose of providing products and services identical or similar to those of MISUMI or its affiliates;
    (10)Performing acts that interfere with the proper functioning of this Website, such as acquiring Data in bulk.
    5. Copyright
    All title and copyright in and to any information contained in the Data are owned by MISUMI or the relevant manufacturer affiliated with MISUMI and are protected by applicable copyright laws and international treaties. By downloading Data, the customer acquires no ownership rights of any kind in the intellectual property contained within. Without prior approval from MISUMI, no part of the Data may be utilized (reproduced, modified, reverse-engineered, uploaded, presented, sent, distributed, licensed, sold, or published) for any purpose other than that mentioned above.
    In the event Data is found to have been to be used for any purpose other than that mentioned above or against any applicable laws or the Terms, MISUMI may pursue any legal remedy available to it, which may result in forbidding the offending user from using the Data or accessing the Website.
    6. Third-Party Data
    MISUMI offers some Data provided by third parties. Such Data may be subject to separate terms and conditions, in addition to these terms. MISUMI makes no guarantee or warranty regarding Data from third parties.
    7. Export Control
    Customers shall comply with all applicable laws and regulations regarding the export of the Data.
    8. Amendments to the Terms
    MISUMI may, at any time, and in its sole discretion, modify these terms and conditions; any such modification will be effective immediately.
    9. Severability
    If any term or provision of these Terms is invalid, illegal, or unenforceable in any jurisdiction, such invalidity, illegality, or unenforceability shall not affect any other term or provision of these Terms or invalidate or render unenforceable such term or provision in any other jurisdiction. Section 139 BGB (German Civil Code) shall not apply.
    10.Miscellaneous
    In the event that Customers violate the Terms, MISUMI and/or MISUMI Europa GmbH shall be entitled to claim the damages and expenses (including attorney's fees) incurred by such violation against the Customers.
    These Terms and any disputes arising in connection therewith shall be exclusively governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflicts of law principles. The courts located in Frankfurt am Main/Germany shall have exclusive jurisdiction to adjudicate any dispute arising in connection with these Terms. By downloading the Data, you agree to submit to the exclusive and personal jurisdiction of the courts located in Frankfurt am Main/Germany.

    Revised: September 21, 2025

    CAD Data Download (Unit Assembly)

    CAD Data Download: File Format
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    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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  • * Unit assembly CAD data consists of some sub-assemblies.
       Each sub-assembly unit can be used as it is or can be edited.

Application Overview

Purpose

  • Design simple and low cost conveyor that requires no motor power sources but utilizes gravity (weight of the material) to move the load.
  • Points for Use
    When the cylinder head is raised:
    The first workpiece is moving along cantilever arm and is stopped by the cylinder. At that time: back of the cantilever arm moves up and stops the second workpiece. Second workpiece is also sitting on the catilever arm.
    When the cylinder head is lowered:
    First workpiece moves to next position using gravity and incline of cantilever arm. At the same time the back of the cantilever arm is pulled back by spring to its home (horizontal) position. At the same time cylinder head raises up and second workpiece using gravity moves forward untill it hits cylinder stopper head.

Target workpiece

  • Cardboard box filled with products.
    External dims.: W170 x D120 x H195
    Workpiece weight: 5.0kg

Design Specifications

Operating Conditions or Design Requirements

  • Motion stroke: 250mm
  • External dimensions: W600 x D260 x H346

Required Performance

  • Total weight of components occupying conveyor: 100N

Selection Criteria for Main Components

  • Tension spring
    • A tension spring is used to return the cantilevered to the down position.
  • Cylinder with guide
    • Used as stop of initial (first) workpiece.
  • Shock absorbing stopper
    • Bumper with low elasticity rubber is selected to absorb shocks on parts.
  • Engineering plastic bearing
    • Select a type with ample load capacity.

Design Evaluation

Verification of main components

  • Verify if the spring can actuate the cantilever arm according to the position of the material (workpiece) on the rollers.
  • Tension spring load
    • Loads and spring deflection of cantilever arm varies with workpiece position
      (1) Load F1 (N) - when workpiece is sitting on the top of the front roller
      (2) Load F2 (N) - when back of cantilever arm is completely raised up
      (3) Load F3 (N) - when workpiece is not
    • Formula: Reaction force F = kx + Initial tension
    • Spring constant: Temporarily select k = 1.32N/mm
    • Initial tension = 4.71N
    • Max. designed deflection amount: x = 12mm (when set 1mm, when stroked 12mm)
    • (1) is,
      (1) F1 = 50N ⇒ Supported in 2 places, 25N
      (2) F2 = 1.32N/mm x 12mm + 4.71N = 21N
      (3) F3 = 1.32N/mm x 1mm + 4.71N = 6N
      Therefore (1) > (2) > (3) holds and selected spring constant k = 1.32/mm is correct.
  • Cylinder w / guide
    • Cylinder is used as a stopper.
    • Workpiece weight 5kg < 30kg (Max. weight)
    • Conveyance speed 15m/min < 30m/min (Max. speed)
      Therefore, the range is suitable.
  • Engineered plastic bearing
    • Since one workpiece is supported by 6 bearings,
      load on each bearing = 50N / 6 ≈ 8.5N
      therefore 8.5N < 176N (Load capacity)

Other Design Consideration

  • Since the tension spring is mounted on frame slots, tension adjustments are possible.
  • When the load travels on the conveyor, front and rear rollers of the cantilevered arms are moving by contacting the load.
  • Since the conveyor rollers are mounted on the extruded Aluminum frame slots, roller pitch can be adjusted.
  • The cantilevered arms are coupled together so right and left actuation is synchronized on individual load points.
  • In order to reduce the friction on the load as it moves down the conveyor resin rollers are used.

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 Engineered Plastic Bearings EBH26 4
2 Resins Bearing EBH13 4
3 Stopper Bolts UNSTH6-40 4
4 Rotary Shaft PFXAC6-22-F7-MA6 4
5 Metal Washers WSSM10-6-3 4
6 Bearing W/Housing SBGRA626ZZ 4
7 Spring Anchors AIPOK6-30 8
8 Squair Post SLSBJF8-126.5-M4-N4-G3-H3 4
9 Spring AUU10-35 4
10 Resins Bearing EBH30 28
11 Resins Bearing EBH35 26
12 Resin Plates MCA2H-70-25-7-F40-G12.5-Z3 1
13 Brackets for Aluminum Extrusion HBLTS6-SET 16
14 Casters HCFT6-60-SET 4
15 Aluminum Extrusion HFS6-3030-200 4
16 Aluminum Extrusion HFS6-3030-480 2
17 Aluminum Extrusion HFS6-3060-600 2
18 Aluminum Extrusion HFS6-3060-158 2
19 Aluminum Extrusion HFS6-3060-180 2
20 Nuts For Aluminum Extrusion HNTT6-6 86
21 End Caps for Aluminum Extrusion HFC6-3060-B 4
22 End Caps for Aluminum Extrusion HFC6-3030-B 4
23 Flow Rate Control Valves SPSNL6-M5 2
24 Socket Head Cap Screws-with Washer SCBS4-10 8
25 Socket Head Cap Screws-with Washer SCBS5-10 4
26 Socket Head Cap Screws-with Washer SCBS5-15 20
27 Socket Head Cap Screws-with Washer SCBS6-15 20
  • 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).
  • Terms of use of CAD data and simplified drawing data
    These terms and conditions (hereinafter referred to as “the Terms") set forth the conditions for downloading CAD data and simplified drawing data provided by MISUMI Corporation (hereinafter referred to as "MISUMI") via www.misumi-europe.com operated by MISUMI Europa GmbH(hereinafter referred to as the "Website"). By downloading CAD data and simplified drawing data posted on the Website (hereafter referred to as “Data”), customers are deemed to have agreed to these Terms.

    1. Purpose of Use
    MISUMI offers the following:
    1)CAD data found on the Website (3D CAD data, 3D Intermediate data and 2D CAD data) for the purpose of informing customers of the characteristics of the products offered by MISUMI or a manufacturer affiliated with MISUMI for use in their designs.
    2)Simplified drawing data (in PDF format) for the purpose of checking the specifications of products.
    2. Characteristics of Data
    There may be a discrepancy in certain characteristics of products (for example: tolerance, surface roughness, chamfer, etc.) between the Data and the actual product. Furthermore, for the purpose of reducing the file size of the Data, some information such as oil groove shapes, threads, or spring shapes, may be removed from the Data.
    3. Disclaimer
    MISUMI carefully creates the Data but makes no warranty as to the quality, accuracy, functionality, safety, reliability, etc., of the Data. MISUMI may at any time, and with no prior notice to customers, revise or delete Data. MISUMI assumes no responsibility for any damage or loss resulting from any revision or deletion of the Data, or any errors in said data. Customers are solely responsible for all aspects of their own designs, including those made using the Data. MISUMI may provide customers with design example data on the Website, but the quality, accuracy, functionality, safety, reliability, etc., of such data are not guaranteed. MISUMI may, at any time, and in its sole discretion, request that the customer cease its use of or destroy the Data in its possession. MISUMI may request the customer provide MISUMI documentation of such destruction.
    4.Prohibited Acts
    Customers or users of the Data, are prohibited from the following acts regarding the Data, in whole or in part:
    (1)Requesting quotations or placing orders for products with third parties other than those authorized by MISUMI or its affiliates;
    (2)Receiving quotations or orders for products from third parties by providing the Data to a third party or using the Data in their own business;
    (3)Displaying links to the Website related to the Data on their own websites, etc., without consent of MISUMI or its affiliates;
    (4)Using or reproducing the Data beyond the scope of the above-stated Purpose of Use;
    (5)Modifying, altering, tampering with, translating, or adapting the Data;
    (6)Selling, transferring, lending, sublicensing, or providing the Data to third parties in any way without consent of MISUMI or its affiliates;
    (7)Altering the content, reverse engineering, decompiling, disassembling, or analyzing the Data;
    (8)Publicly disclosing or exhibiting the Data without consent of MISUMI or its affiliates;
    (9)Using the Data for the purpose of providing products and services identical or similar to those of MISUMI or its affiliates;
    (10)Performing acts that interfere with the proper functioning of this Website, such as acquiring Data in bulk.
    5. Copyright
    All title and copyright in and to any information contained in the Data are owned by MISUMI or the relevant manufacturer affiliated with MISUMI and are protected by applicable copyright laws and international treaties. By downloading Data, the customer acquires no ownership rights of any kind in the intellectual property contained within. Without prior approval from MISUMI, no part of the Data may be utilized (reproduced, modified, reverse-engineered, uploaded, presented, sent, distributed, licensed, sold, or published) for any purpose other than that mentioned above.
    In the event Data is found to have been to be used for any purpose other than that mentioned above or against any applicable laws or the Terms, MISUMI may pursue any legal remedy available to it, which may result in forbidding the offending user from using the Data or accessing the Website.
    6. Third-Party Data
    MISUMI offers some Data provided by third parties. Such Data may be subject to separate terms and conditions, in addition to these terms. MISUMI makes no guarantee or warranty regarding Data from third parties.
    7. Export Control
    Customers shall comply with all applicable laws and regulations regarding the export of the Data.
    8. Amendments to the Terms
    MISUMI may, at any time, and in its sole discretion, modify these terms and conditions; any such modification will be effective immediately.
    9. Severability
    If any term or provision of these Terms is invalid, illegal, or unenforceable in any jurisdiction, such invalidity, illegality, or unenforceability shall not affect any other term or provision of these Terms or invalidate or render unenforceable such term or provision in any other jurisdiction. Section 139 BGB (German Civil Code) shall not apply.
    10.Miscellaneous
    In the event that Customers violate the Terms, MISUMI and/or MISUMI Europa GmbH shall be entitled to claim the damages and expenses (including attorney's fees) incurred by such violation against the Customers.
    These Terms and any disputes arising in connection therewith shall be exclusively governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflicts of law principles. The courts located in Frankfurt am Main/Germany shall have exclusive jurisdiction to adjudicate any dispute arising in connection with these Terms. By downloading the Data, you agree to submit to the exclusive and personal jurisdiction of the courts located in Frankfurt am Main/Germany.

    Revised: September 21, 2025

    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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