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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.000260 Rotating and Raising Mechanism

Lifting and rotating mechanism

Angular Contact Bearings with Housings

Product name Angular Contact Bearings with Housings - Back-to-Back Combination + Deep Groove Ball Bearing, Flanged Type
Part number ABGC7004-N-80
Features Angular Contact Bearings with Housings - Flanged type with Deep Groove Ball Bearings set in Back-to-Back Combination.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

To handle the changes in work piece weight as well as the durability issues a angular contact bearing is used.

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Available sizes

■Angular Contact Bearings with Housings - Back-to-Back Combination + Deep Groove Ball Bearing, Flanged Type

(1) Angular Contact Bearings
(Back-to-Back Combination)

(3) Holder, (4) Inner Ring Spacer, (5) Standard Cover,
(6) Standard Cover, Oil Seal Cover,
or O-Ring Cover,
(7) Inner Ring Collar
(8) Cover Mounting Screw
(2) Deep Groove Ball Bearings
Material Material Surface Treatment Material Surface Treatment
52100 Bearing Steel 1045 Carbon Steel Black Oxide 4137 Alloy Steel Black Oxide
Electroless Nickel Plating 304 Stainless Steel -

■Sizes and Dimensions

Bearing No. Cover Selection Overall Length
7002 Standard

Oil Seal

For O-Ring
60 75
7003 70 85
7004 80 100
7005 100 125
7006 120 150
7007 140 175
7008 160 200
7009 180 225
7010 200 250

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Stand Brackets

Product name Brackets for Device Stands and Tightening from Separate Side- Flanged
Part number PFPM20
Features Can be fastened from the back side.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Select a reversed fastening type to firmly secure the shafts.

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Available sizes

■Brackets for Device Stands and Tightening from Separate Side- Flanged

Type Material Surface Treatment
Flange

Pilot Flanged
1045 Carbon Steel Black Oxide
Electroless Nickel Plating
304 Stainless Steel -

■Sizes and Dimensions

Stand Shaft Bore Dia. Flange O.D. Flange Wrench Flats Overall Length Post Mounting Screws
6 28 12 16 M3
8 32 15 22 M4
10 38 18 26 M5
12 42 20 32 M6
13
15 48 32 40 M8
16
20 55 38 50 M10
25 75 50 62 M12
30 80 55 75 M16

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Flanged Linear Bushings

Product name Flanged Linear Bushings - Center Flange
Part number LHMRWMF20
Features A load can be placed near the center of the linear bushing to evenly distribute the load and space.
* Orange colored cells in the table below indicate the part numbers used in this example.

Selection criteria

Select a center flanged type so that the plate moving up and down is positioned at the center of the bearing.

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Available sizes

■Flanged Linear Bushings - Center Flange

Type Outer Cylinder Ball Retainer Operating Ambient
Temperature
Accessory
Material Hardness Surface Treatment Material Material
Round Flange
Square Flange
Compact Flange
52100 Bearing Steel 58HRC- - 52100 Bearing Steel Plastic
(Duracon M90 Equivalent)
-20-80℃ Seal: Material
Nitrile Rubber
(-20 to 120°C)
Stainless(SUS) -20-100℃
Electroless
Nickel Plating
440C Stainless Steel Plastic
(Duracon M90 Equivalent)
-20-80℃
Stainless Steel (SUS) -20-100℃
440C Stainless Steel 56HRC- - Plastic
(Duracon M90 Equivalent)
-20-80℃
Stainless Steel (SUS) -20-100℃

■Sizes and Dimensions

I.D.
(mm)
Length
(mm)
6 35
8 45
10 55
12 57
13 61
16 70
20 80
25 112
30 123
35 135
40 151
50 192

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Selection steps

■Linear Bushing Selection Steps

Determine conditions of use
(Loads, Motion pattern, Life hours)

Temporarily select the specifications of linear bushings
(Shaft dia. and length are temporarily selected according to the conditions of use.)

Basic safety check
  • ●Basic Static Load Rating
  • ●Basic Dynamic Load Rating
  • ●Allowable Static Moment
  • Operating Life

Considerations Based on Required Performance
●Life Variations Due to Temperature Changes

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Accuracy Info

■Accuracy Info. of Flanged Linear Bushings

(mm)

I.D. I.D. Tolerance Overall Length Tolerance
6     0
  -0.010
±0.3
8
10
12
13
16
20     0
  -0.012
25
30
35     0
  -0.015
40
50

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Performance info.

■Speeds / Loads (Load Info.) of Flanged Linear Bushings

I.D.
(mm)
Basic Load Rating
Basic Dynamic Load Rating (N) Basic Static Load Rating (N)
6 324 529
8 431 784
10 588 1100
12 657 1200
13 813 1570
16 1230 2350
20 1400 2740
25 1560 3140
30 2490 5490
35 2650 6270
40 3430 8040
50 6080 15900

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Technical calculations

■Life of Flanged Linear Bushings

When the linear system is loaded in linear reciprocating motion, scaly damages called flaking appear due to material fatigue as the repeated stress is applied on the rolling elements and the rolling contact surfaces constantly. Total travel distance until the first flaking occurs is called the life of linear system.

Rated life can be calculated with the basic dynamic load rating and the actual load applied on the linear bushings, as shown below.

  • L: Rated Life (km)
  • fH: Hardness Factor (See Fig.1)
  • fT: Temperature Factor (See Fig.2)
  • fC: Contact Factor (See Table-3)
  • fW: Load Factor (See Table-4)
  • C: Basic Dynamic Load Rating (N)
  • P: Applied Load (N)

Hardness Factor (fH)

For liner system applications, sufficient hardness is required for ball contact shafts. Inappropriate hardness causes less allowable load, resulting in shorter life.

Fig. 1. Hardness Factor

Temperature Factor (fT)

When the temperature of linear system exceeds 100°C, the hardness of the system and shafts will be reduced and the allowable loads will also be reduced compared to being used at room temperature, resulting in a shorter life.

Fig. 2. Temperature Factor

Contact Factor (fC)

More than two linear systems are used for one shaft in general. In this case, the load applied to each linear system varies depending on machining precision and is not uniformly distributed. As a result, allowable load per linear system changes depending on the number of linear systems used on one shaft.

Table-3. Contact Factor

Number of Bearings Installed on One Shaft Contact Factor fC
1 1
2 0.81
3 0.72
4 0.66
5 0.61

Load Factor (fW)

To calculate load applied to the linear system, in addition to object weight, it requires inertia force attributed to motion velocity or moment loads. Further, it is necessary to accurately determine the temporal change of each. 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. Therefore, use the table below in order to simplify the life calculations.

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

Life in hours can be obtained by calculating the travel distance per hour. When the stroke length and the number of strokes are constant, it can be calculated using the formula below.

  • Lh: Life (Hr.)
  • L: Rated Life (km)
  • Ls: Stroke length (m)
  • n1: Number of Cycles per Minute (cpm)

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IDEA NOTE Simplified elevating/rotary motion

A mechanism which lifts the cylinder and rotates using a reversible motor is placed underneath the stage to save space.

IDEA NOTE Rotates workpieces with timing pulley

By mounting a work piece receiving plate just above the driven side of the pulley, and held with a double rowed angular contact bearing, the work piece weight against the motor and accuracy are improved.

  • 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)

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    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

  • Simplified multiple movement mechanism.

Points for use

  • Blower included within the cylindrical thin plastic work pieces serves as a cleaning mechanism.
  • The work piece is raised into the fixed blower, at this point through the rotation and movement cleaning can be implemented from all angles of the work piece.

Target workpiece

  • Long cylindrical workpiece.
  • External dimension: φ160xH90mm
  • Workpiece weight: 219g

Design Specifications

Operating Conditions or Design Requirements

  • Specifications for workpiece operation
    • Rotating angle: 360deg; Rotational speed: 0.5rev/sec = 3.14rad/sec
    • Elevation stroke: 100mm; Elevation velocity: 100mm/sec
  • Equipment dimensions
    • External dimensions: W480xD125xH413mm
    • Depth of underneath the table: 408mm

Required Performance

  • Specifications for workpiece operation
    • Rotation start time: 0.1sec
    • Elevation start time: 0.1sec

Selection Criteria for Main Components

  • Rotational torque of motor gear head.
  • Thrust of cylinder.

Design Evaluation

Verification of main components

  • Verification of the motor torque and cylindrical thrust required below.
  • Rotational torque of motor gear head (60Hz)
    • Rated rotational speed of motor: 1575 [Hz]→Gear head reduction ratio: (1575/60)/0.5 = 52.5 → 50 is adopted
    • Starting torque of motor: 0.17N・m →Gear head conversion: 0.17×50 = 8.5N・m
    • Allowable torque of gear head: 5.29N・m (from catalog) < 8.5 →5.29N・m is adopted
    • Total inertia of rotating part: J = 6083kg・mm²=6083×10-6kg・m²
    • Rotation start time: 0.1sec → Rotation start angular acceleration: dω/dt = 3.14 / 0.1 = 31.4rad/sec²
    • Required torque of rotating part: Tr = dω/dt ×J = 31.4 ×6083×10-6 = 0.191N・m
    • Belt overload coefficient Ks = 1.6 (catalog value), Required torque of driving side: 0.191×1.6 = 0.306N・m
    • Safety factor: 5.29/0.306 = 17.3
  • Thrust of cylinder
    • Total weight of elevating part: 10.68kg, Acceleration for vertical push: g + dv/dt = 9.8 + 1 = 10.8m/sec²
    • Required thrust of cylinder: F = 10.68×10.8 = 115.5N
    • Operating pressure: 0.5MPa; Theoretical output of push side: 628N (from catalog)
    • Safety factor: 628/115.5 = 5.44
  • Specifications for workpiece operation
    • Elevation start time: 0.1sec → Elevation start acceleration: dv/dt = 100 / 0.1 = 1000mm/sec² = 1m/sec²

Other Design Consideration

  • Through the use of a timing pulley, the accuracy of the work piece angle can be improved.
  • By separating the motor gear head and the rotating portion of the work piece, the overhang load of the gear head can be avoided.

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 Gear Motors Currently not available 1
2 Gear Motors PACMGX80-100 1
3 Angular Contact Bearings with Housings ABGC7004-N-80 1
4 Timing Pulleys ATP50XL050-A-NK10 1
5 Timing Pulleys ATP50XL050-A-N25-QTC55-M8 1
6 Timing Belt TBN220XL050 1
7 Bearing Nut FUNTC20 1
8 Threaded Stopper Blocks TSE6-7 2
9 Screw Stopper ANBN6-30 2
10 Air Cylinders MSCCA40-100 1
11 Flow Rate Control Valves SPSNL8-1 2
12 Sensors for Air Cylinders MD13L1 2
13 Floating Joints FJUC14 1
14 Linear Shaft SFJW20-375-M10-N10 2
15 Brackets for Device Stands PFPM20 4
16 Linear Bushings LHMRWMF20 2
17 Parallel Keys KEG8-20 1
18 Socket Head Cap Screws-with Washer CBST6-15 4
19 Socket Head Cap Screws-with Washer CBST6-20 20
20 Socket Head Cap Screws-with Washer CBST6-25 4
21 Socket Head Cap Screws-with Washer CBST8-20 3
  • 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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