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No.000239 W reversing mechanism
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56

Angled rack and pinion mechanism used to reverse a workpiece.

Related Category

Gear Racks

Gear Racks
Product name Gear Racks/Pressure Angle 20Deg./Configurable L Dimension
Part number RGEAL1.5ST-100-A5-B45-C45
Features This enables to switch between rotating motion and linear motion. Length and mounting hole machining can be specified.
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Risk info. | Available sizes | Accuracy Info

Selection criteria

Selected to achieve simultaneous rotation.

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Risk info.

Wear due to lack of teeth surface hardening.

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Available sizes

■Rack Gears (One End Machined)

Material Surface Treatment
EN 1.1191 Equiv. Black Oxide
Free-Cutting Brass Bar -
EN 1.4301 Equiv. -
MC Nylon -

■Sizes and Dimensions

Material Module Tooth width Overall Length
1mm Increments
EN 1.1191 Equiv. 1.0 10 20-400
1.5 15
2.0 20
2.5 25
3.0 30
Free-Cutting Brass Bar 0.5 3 20-280
0.8 4
EN 1.4301 Equiv. 0.5 3 20-280
0.8 4
1.0 10 20-480
1.5 15
2.0 20
2.5 25
3.0 30
MC Nylon 0.5 3 20-280
0.8 4
1.0 10 20-480

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Accuracy Info

■Rack Gear (Accuracy Information)

Accuracy: Accumulated Pitch Error (µm)

Module Overall Length
100. or Less 101-300 301-500 501-1000 1001-1980
0.5-1.5 54(76) 65(92) 72(101) 100(117) 99(139)
2.0-3.0 62(86) 73(102) 80(112) 91(128) 105(148)

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Induction Hardened Spur Gears

Induction Hardened Spur Gears
Product name Spur Gears/Induction Hardened/Pressure Angle 20Deg.
Part number GEAHBH1.5-32-15-A-20
Features Gears with hardened teeth which provides excellent strength, abrasion resistance and high precision
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Accuracy Info

Selection criteria

Reduce wear to gear teeth.

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Available sizes

■Induction Hardened Spur Gears (Ground)

Material Surface Treatment Hardness Accessory
EN 1.1191 Equiv. Black Oxide Coating Tooth Induction Hardened
51 - 55 HRC (Depth 1mm or more) 		Set screw
(EN 1.7220 Equiv. Black Oxide Coating)

■Sizes and Dimensions

Module Number of Teeth Shaft Bore DIA.
(1mm increment)
Round Hole,
Round Hole + Tap 		Keyway,
Keyway + Tap
1.0 18 6-10 -
20 6-11 8 ･ 10
22 8-14 8-12
24
25
26
28
30 10-17 10-15
32
35
36
40 10-21 10-18
45
48
50 12-24 12-18
60 12-28 12-25
70
80 15-35 15-30
100
1.5 15 10-12 10
16 10-13 10 ･ 11
18 10-15 10-13
20 10-16 10-14
24 12-19 12-17
25 12-21 12-18
26 12-22 12-19
28 15-25 15-19
30 15-26 15-23
32 15-28 15-24
35 15-29 15-26
36 15-31 15-28
40 15-35 15-31
45 18-35 18-31
48
50 18-42 18-38
60 20-42 20-38
70
Gear specification Shaft Bore Specs. 
Round Hole Round Hole + Tap Keyway Keyway
+ Tap
No hub ○ ○
With Hub ○ ○ ○

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Accuracy Info

■Accuracy of Spur Gear.

Gear accuracy:　Previous JIS B 1702 4 Class (New JIS B 1702-1 - 8 class equivalent).
Shaft Bore Dia. Tolerance:　 H7.

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Thrust Ball Bearings

Thrust Ball Bearings
Product name Thrust Ball Bearings
Part number B51102
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Performance info.

Selection criteria

Selected for supporting thrust load of workpiece and components.

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Available sizes

■Thrust Ball Bearing

Material
Steel Type EN 1.3505 Equiv.
Stainless Steel Type EN 1.4125 Equiv.

■Sizes and Dimensions

I.D. Track Plate O.D. Track Plate I.D. Thickness
10 24 11 9
26 12 11
12 26 13 9
28 14 11
15 28 16 9
32 17 12
17 30 18 9
35 19 12
20 35 21 10
40 22 14
25 42 26 11
47 27 15
30 32 11
52 32 16

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Performance info.

■Load information of the thrust ball bearings

I.D. Track Plate
O.D. 		Basic Load Rating Allowable Rotational Speed
rpm
Steel Type Stainless Steel Type
Ca (Dynamic) kN Coa (Static) kN Ca (Dynamic) kN Coa (Static) kN
10 24 10.1 14 5 6.96 6700
26 12.8 17.1 - - 6000
12 26 10.4 15.4 5.15 7.7 6700
28 13.3 19 - - 5600
15 28 10.6 16.8 5.25 8.38 6300
32 16.7 24.8 - - 5000
17 30 11.4 19.5 5.39 9.07 6000
35 17.3 27.3 - - 4800
20 35 15.1 26.6 7.11 12.36 5300
40 22.5 37.5 - - 4300
25 42 19.7 37 9.76 18.63 4800
47 28 50.5 - - 3800
30 20.6 42 10.2 21.08 4300
52 29.5 58 - - 3400

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IDEA NOTE Reversing at the desired angle on 2 axis simultaneously using a rack & pinion mechanism.

The unit is linearly driven with 2 racks fixed in parallel and can be reversed on the 2 axis simultaneously for any desired angle of the pinion gear.

IDEA NOTE Radial + thrust

Workpiece positioning and rotation are supported by a mechanism combining a radial bearing and a thrust bearing.

  • 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.
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    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.
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    Revised: September 21, 2025

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    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.

    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 CAD data consists of some sub-assemblies.
       Each sub-assembly unit can be used as it is or can be edited.

Application Overview

Purpose

  • One axis of the linear rack section is driven by a cylinder, the pinions on the other axis are then rotated simultaneously to reverse them to any desired angle. (90° in the example).

Points for use

  • The workpiece is transferred in and out by the up and down motion of the chucking mechanism on the external unit.
  • The stroke is controlled by both the sensor of the cylinder, and a mechanical stopper to ensure the precise workpiece angle.

Target workpiece

  • Material: Resin
  • External Shape:Ø9 x W41mm
  • Mass: 3g

Features

Operating specifications ･ Dimensions

  • Workpiece rotation angle: 90°
  • Pinion Gear: m1.5, z32, P.C.D. 48mm
  • Required Cylinder Stroke: 37.7mm
  • System External Shape: W 390 x D 300 x H 106mm

Required accuracy ･ Load

  • Cylinder Thrust: 6.83N or more

Selection criteria of main components

  • Cylinder
    • Adopted thin type cylinder for space saving.
  • Pinion Gear
    • A pinion gear with a tap hole is used affixed to workpiece jig, so the jig can be rotated.

Design point

Calculation processes for the main components

  • Whether the cylinder thrust force can handle the slide-way load and rotation section load is verified below.
  • Thrust of cylinder (Ø20mm, ST 50mm)
    • Condition value: Slide way total weight m1 = 1.714kg, linear guide friction coefficient μ1 = 0.005 (from catalog), rotating section total weight m2 = 0.688kg, conversion factor to slide motion of rotating section μ2 = 1 (assumed as a slide with a friction coefficient of 1 for safe side), operating pressure of cylinder: 0.2MPa
    • Slide way load: F1 = m1 x g x μ1, thus, F1 = 1.714 x 9.8 x 0.005 = 0.084N
    • Rotating section load: F2 = m2 x g x μ2, thus, F2 = 0.688 x 9.8 x 1 = 6.742N
    • Total load: F = F1 + F2 = 0.084 + 6.742 = 6.83N
    • Pull side thrust of cylinder: F0 = 47N(from catalog)
    • Safety factor: F0/F = 47/6.83 ≈ 6.88

Structure elaboration and design key points.

  • This system is effective for a corner section, that requires the reversing of multiple parts on an automated line in single file.
  • The workpiece table has a slotted hole in the rotated direction in order to enable the adjustment of the workpiece position during rotation.
  • Installing a sensor and mechanical stopper in parallel enables precise positioning and angle adjustment of the workpiece. It also reduces the generation of moments by stopping the transmission of cylinder thrust prior to hitting the mechanical stopper.

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 Air Cylinders MSCCA20-50 1
2 Brackets For Air Cylinders CFKPB20 2
3 Sensors for Air Cylinders ME33L1 2
4 Flow Rate Control Valves SPSNL6-M5 2
5 Floating Joints FJXL8-1.25 1
6 Linear Guides SSE2B20-220 2
7 Rack Gears RGEAL1.5ST-100-A5-B45-C45 2
8 Zahnräder geradeverzahnt/Induktiv gehärtet/Druckwinkel 20Grad GEAKBH1.5-32-15-A-15N-QFC30-M3 2
9 Parallel Keys KEGH5-LC12 2
10 Thrust Ball Bearings B51102 2
11 Deep Groove Ball Bearings B6002ZZ 2
12 Shaft Collars PSCSBR15-19 2
13 Stopper Bolts UST6-35 2
14 Dowel Pins MS4-10 6
16 Socket Head Cap Screws-with Washer CBST4-15 22
17 Socket Head Cap Screws-with Washer CBST5-20 8
18 Socket Head Cap Screws-with Washer CBST6-20 12
19 Metal Washers WSSB8-6-3 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).
  • 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)

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


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    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.

    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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