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Rack gears / contact angle 20 degrees / dimension L standard (RGEA0.8-500-KA)

Rack gears / contact angle 20 degrees / dimension L standard RGEA0.8-500-KA

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MISUMI

MISUMI

Product Details:

Manufacturer part number: RGEA0.8-500-KA

Brand: MISUMI

Price: 70.52 €

Delivery time: 7 Days


Technical Data:

Characteristics/Applications: Not Applicable

Module (M) / Circular Pitch (P): 0.8

Length L: 497.63 mm

Material: [General Steel Material] EN 1.1191 Equiv.

Material Details: EN 1.1191 Equiv.


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RGEA0.8-500-KA

Dimensional Drawing

Hole Machining N: No Hole Machining
Hole machining KA: Side Through Hole
Hole Machining ST: Side Tapped
Hole machining A: Back Tapped
Hole Machining Z: Side Counterbored
ModuleB
(Hole Pitch)		M
(Coarse)		 d1  d2  Z1 
0.5180—3.5——
0.8—3.5——
1.0M33.56.53.5
1.5M44.584.5
2.0M55.59.55.5
2.5M55.59.56.5
3.0M55.59.55.5
  ■Both Ends Machined Type




 
Enlarged View of End Face (Both Ends Machined Type)
ModuleP Tolerance
0.5 to 2.0－0.1
－0.3
2.5·3.0－0.1
－0.4
  [ ! ] F = L－B× (K－1)2
Metal: L Tolerance (mm)Plastic: L Tolerance (mm)W, H Dimension Tolerance (mm)Accumulated Pitch Error (μm)
ModuleTolerance
0.5 to 2.0-0.2 to -0.6
2.5 to 3.0-0.2 to -0.8
Overall Length (L)Tolerance
50 to 100±1.2
101 to 200±1.4
201 to 300±1.6
301 to 400±1.8
401 to 500±2.0
501 to 600±2.2
601 to 700±2.4
701 to 800±2.6
801 to 900±2.8
901 to 1000±3.0
Standard Dimension Range (mm)Tolerance
Overor Less
050 to -0.18
6100 to -0.22
11180 to -0.27
19300 to -0.33
31500 to -0.39
ModuleNominal, Overall Length L
Up to 100101 to 300301 to 500501 to 1000
0.5 to 1.554 (76)65 (92)72 (101)100 (117)
2.0 to 3.062 (86)73 (102)80 (112)91 (128)
[ ! ] Values in ( ) are for RGEAS, RGEAM, RGEAP
[ ! ] Dimensions may change depending on temperature and humidity.
TypeMaterialSurface Treatment
RGEAEN 1.1191 Equiv.Black Oxide
RGEABFree-cutting brass-
RGEASEN 1.4301 Equiv.-
RGEAMMC Nylon (Blue)-
RGEAPPolyacetal (White)-
[ ! ] Surface treatment is not applied to the holes in KA, A, ST and Z hole machining.
[ ! ] Material: MC Nylon and Polyacetal dimensions may change depending on the operating environment.
[ ! ] Flatness (warpage) accuracy is L = 500 or less: 0.2, 501 or more: 0.3.
[ ! ] This product is not hardened.

Specification Table

Part Number—Nominal—Hole Machining
RGEA1.0—500—A
 
Part NumberNominalHole MachiningEffective
Number of Teeth		LP
(Pitch)		WHhK
(Number of Holes)
TypeModule
RGEA

RGEAB

RGEAS

RGEAM

RGEAP		0.5100
N
(No Hole Machining)

KA
(Side Through Hole)
6398.961.571398.5—
300192301.592
500318499.513
0.81003998.012.5134109.2—
300120301.592
500198497.633
1.0100
N
(No Hole Machining)

A
(Back Tapped)

ST
(Side Tapped)

Z
(Side Counterbored)
3094.253.1421012 (10)11 (9)—
30095298.452
500159499.513
1000318999.026
RGEA

RGEAS

RGEAP		1.51002198.964.7121520 (15)18.5 (13.5)—
30063296.882
500106499.513
1000212999.026
2.01001594.256.2832025 (20)23 (18)—
30047295.312
50079496.373
1000159999.026
2.51001294.257.8542530 (25)27.5 (22.5)—
30038298.452
50063494.83
1000127997.46
3.01001094.259.4253035 (30)32 (27)—
30031292.172
50053499.513
1000106999.026
[!] Hole drilling cannot be selected for nominal size 100. [!] H,h () is the value for EN 1.4301 Equiv..

Alterations

AlterationsOne End TappedBoth Ends TappedTapped Hole Dimension Change
CodeMCWMCTPC
Spec. Ordering Code MC5 Ordering Code WMC5Changes the tapped hole dimension.
Ordering Code TPC4
       M  TPC
M3M4
M4M3 M5
M5M4 M6 M8
Module M Selection 
1.034  
1.5 to 3.0 456
Module M Selection 
1.034  
1.5 to 3.0 456
[NG] For RGEAS, M4 is not available for module 1.0.[NG] For RGEAS, M4 is not available for module 1.0.

 

General information - Rack Gears

Rack gear product assortment - steel rack gear - stainless steel rack gear - brass rack gear - plastic rack gear - hardened rack gear

 

Selection Details of Rack Gears

-Material: steel, stainless steel, brass, plastic

-Coatings: uncoated, burnished

-Heat treatment: untreated, surface curing (induction hardened)

-Module: 0.5, 0.8, 1, 1.5, 2, 2.5, 3

-Width: 3 to 30 mm

-Number of teeth: 9 to 192

-Outer diameter (round): 8 to 30 mm

-Length: 20 to 1980 mm

 

Description / Rack Gear Basics

The rack gear from MISUMI are fundamentally used for motion conversion. The rack gear allows converting a rotary motion into a linear motion or a linear motion into a rotary motion. A rack gear can transmit high forces due to the form-fitting gearing. In connection with a gear wheel or spur gear, a gear rack drive forms a slip-free transmission of force and prevents a slip-through. For a large number of applications, the slip-free transmission of the rack gear is an efficient transmission of force and motion. The rack gear drive also withstands high loads with a compact design. With rack gears, high speeds can also be driven in applications with low noise generation. With MISUMI, you can configure your rack gears individually in length and in other parameters.

During the transfer of motion, the teeth intertwine and largely unroll during the transfer to one another. The rack gear can be used for the transfer of motion almost over the entire length. To prevent the gear wheel from overflowing, for example, stopper bolts or stopper blocks are recommended. Since the module is standardized, it must be ensured for the construction of a rack drive that the same module is used for the rack and the gear wheel. The rack gear allows precise control by directly transmitting motion, torque and speed.

For high wear resistance and reliability, our product range also offers surface-hardened rack gears. The hardened rack gear has a harder surface of the teeth, which makes it less susceptible to wear and tear. Their long service life helps reduce production downtime. Hardened rack gears are also less susceptible to locking-related play and retain their precision in the long term. This aspect makes hardened rack gears particularly recommended for precise applications.

A rack gear drive has a low backlash. In general, the tooth flank clearance is used for assembly and thermal expansion. Like the head play, it can serve as a gap for lubricants. For very precise applications, the reverse play is not beneficial. In order to minimize this during precision applications, pre-tensioning is required. On lifting tables, the dead weight already generates a vertical pretension in the rack gear, which minimizes the reverse play. If the rack gear is aligned horizontally, a separate pretension should be used to reduce the reverse play. This can be achieved with tension springs or other exciting components, for example. When selecting a suitable rack gear, the first decision criterion is the material of the rack gear drive. The following are some advantages of the rack gear materials:

 

Steel rack gears

Rack gears made of steel have high strength and withstand high loads. Therefore, steel rack gears are suitable for heavy loads. The material surface can be hardened to increase wear resistance. This makes the rack gear resistant and durable. In addition, steel is very heat-resistant and is suitable for applications in which high ambient temperatures occur. One disadvantage of steel is its low corrosion resistance.

 

Stainless steel rack gears

Stainless steel rack gears are highly corrosion resistant, since stainless steel forms a passive layer (oxide layer). This makes them suitable for applications where higher humidity is found. Furthermore, stainless steel offers good chemical resistance. Like steel, stainless steel is temperature resistant without losing strength. High temperatures can cause discoloration (tempering colour) in stainless steel. However, this does not affect the function in any way. Similar to the steel, stainless steel is robust and has a long service life. Another advantage is that rack gears made of stainless steel have hygienic properties. Therefore, this material is often used in the pharmaceutical industry and in medical technology.

 

Brass rack gears

Brass rack gears are well protected against corrosion. Therefore, a brass rack gear is well suited in corrosive environments. Depending on the application, it can be advantageous that brass does not tend to spark when abrasion is applied. In addition, brass has a high strength and ductility. This allows the material to deform before it breaks. Brass rack gears have a high thermal conductivity, which allows heat to be dissipated similar to a heat sink. The perhaps most important property of the brass rack gear is its gliding property. In the case of a lubrication film dissipates, this property serves as a certain fail-safe.

 

Lubrication of rack gears

The lubrication of the rack gear is decisive for low-wear operation. The lubrication reduces the friction on the tooth flanks of the rack gear and the pinion, which reduces the material abrasion. In this way, proper lubrication of the rack gear increases the service life, performance and ensures long-term precision. In principle, a rack can be lubricated with grease or oil. The type of lubrication that is suitable depends on several factors such as temperature, load and speed. Grease lubrication is often used for high loads and torques, while oil lubrication is used for high speeds. Lubricant manufacturers offer a suitable lubricant for almost all load cases. Before re-lubricating, the tooth drive should be thoroughly cleaned to prevent damage to the tooth flanks or teeth from contamination. Depending on the application, the lubricant can be sprayed, brushed, or sprayed onto the rack gear. The lubrication intervals must be selected depending on the application and the lubricant used. It is always recommended to adjust the lubrication intervals to the given circumstances.

 

Application examples - Rack Gears

Application example: rack gear - round rack gear - rack gear with spur gear - rack gear with pinion - rack gear with handle

Application example - rack gear with spur gear
(1) Spur gear, (2) Clamping knobs, (3) Rack gear

 

Industrial applications

3D printer industry
Automotive industry
Pharmaceutical industry
Packaging industry

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Part Number
RGEA0.8-500-KA
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSCharacteristics/Applications Module (M) / Circular Pitch (P) Length L
(mm) 		Material Material Details Surface Treatment Length (nominal) Number of Effective Teeth
(teeth) 		Tooth Width W (or D)
(mm) 		End Face Machining Rack Height
(mm) 		Hole Machining

70.52 €

1 Available 7 Days -Not Applicable0.8497.63[General Steel Material] EN 1.1191 Equiv.EN 1.1191 Equiv.Black Oxide5001984[Provided] Both Ends Machined Type10KA (Side Through Hole)

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  1. 1

Specifications/Overview

How to Connect Rack Gears (Both Ends Machined Type)
MISUMI Rack Gears (Both Ends Machined Type) are end machined with negative pitch tolerance in length.
When connecting the racks, use a piece of rack (rack gear in the same module) as a spacer jig as shown in the right side figure to properly adjust the pitch.


  Rack Gear Flatness Measurement Method
Measure the gap with the rack gear teeth facing up and both ends grounded.
Flatness Tolerance
0.2 for L = 500 or less
0.3 for L = 501 or more

 
 

Basic information

Tooth Type Standard Environmentally friendly RoHS Compliant (10 Substances) Shape Rack Gears
Heat Treatment Not Provided Ground Tooth Not Provided

This page is Rack gears / contact angle 20 degrees / dimension L standard, part number RGEA0.8-500-KA.
You can find the detail information about specifications and dimensions on part number RGEA0.8-500-KA.

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Basic Attributes

  • Type

    • RGEA
    • RGEAB
    • RGEAM
    • RGEAMR
    • RGEAP
    • RGEAR
    • RGEAS

    Clear

  • Characteristics/Applications

    • Low Dust Generation
    • Corrosion Resistant / Chemical Resistant
    • Insulation
    • Non-magnetic
    • Heat Resistance
    • Not Applicable

    Clear

  • Module (M) / Circular Pitch (P)

    • 0.5
    • 0.8
    • 1
    • 1.5
    • 2
    • 2.5
    • 3

    Clear

  • Length L(mm)

    • 94.25
    • 98
    • 98.01
    • 98.96
    • 100
    • 101
    • 292.17
    • 295.31
    • 296.88
    • 298.45
    • 301.59
    • 303
    • 494.8
    • 496.37
    • 497.63
    • 499.51
    • 505
    • 997.4
    • 997.45
    • 999.02
    • 999.03

    Clear

  • Material

    • General Steel Material
      • EN 1.1191 Equiv.
    • Stainless Steel
      • EN 1.4301 Equiv.
    • Resin
      • MC Nylon
      • Polyacetal
    • Brass
      • Free-Cutting Brass Rod

    Clear

  • Material Details

    • EN 1.1191 Equiv.
    • EN 1.4301 Equiv.
    • Free-Cutting Brass
    • MC Nylon
    • Polyacetal

    Clear

  • Surface Treatment

    • Not Provided
    • Black Oxide

    Clear

  • Length (nominal)

    • 1,000
    • 100
    • 300
    • 500

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  • Number of Effective Teeth(teeth)

    • 9
    • 10
    • 11
    • 12
    • 14
    • 15
    • 20
    • 21
    • 29
    • 30
    • 31
    • 37
    • 38
    • 39
    • 46
    • 47
    • 52
    • 53
    • 62
    • 63
    • 79
    • 94
    • 95
    • 105
    • 106
    • 120
    • 127
    • 159
    • 192
    • 198
    • 212
    • 318

    Clear

  • Tooth Width W (or D)(mm)

    • 3
    • 4
    • 10
    • 15
    • 20
    • 25
    • 30

    Clear

  • End Face Machining

    • Economy Type
    • Provided
      • Both Ends Machined Type

    Clear

  • Hole Machining

    • A (Back Tapped)
    • KA (Side Through Hole)
    • N (No Hole Machining)
    • ST (Side Tapped)
    • Z (Side Counterbored)

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  • Filter by CAD data type

    • 2D
    • 3D

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Filter by standard shipping days

    • All
    • Same day
    • 7 Days or Less
    • 9 Days or Less

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Optional Attributes

Frequently Asked Questions (FAQ)

Question:

What are rack gears for?
Answer:

Rack gears are machine elements that convert rotary motion into linear motion. This can also be done in reverse order. The rack gear can transmit high forces directly and without slip with a gear wheel.
Question:

What materials are used for rack gears?
Answer:

MISUMI’s rack gears are made of steel, stainless steel (stainless steel), brass and plastic. Each material offers different properties that must be selected to suit a wide range of requirements.
Question:

What types of rack gears do you offer?
Answer:

There are straight-toothed rack gears and slanted rack gears. The rack gears with straight gearing are often used to implement linear motion. The obliquely toothed rack gears are often used for conversion into a rotation.
Question:

How are rack gears lubricated?
Answer:

In most cases, a rack gear is lubricated with grease or oil. The appropriate lubricant should be used depending on the application (heavy loads, high temperature, high speed). For high-speed applications, oil is usually used. A grease is often used in heavy load applications.
Question:

What are the advantages of rack gears?
Answer:

Rack gears withstand high loads and have a long service life. At the same time, rack gears are very precise and easy to assemble.

Show more FAQ Close

Variation of this product

Part Number
RGEA0.5-500-KA
RGEA0.5-500-N
RGEA0.8-100-N
RGEA0.8-500-N
RGEAB0.5-100-N
RGEAB0.5-300-KA
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountStandard
Shipping Days
?		RoHSCharacteristics/Applications Module (M) / Circular Pitch (P) Length L
(mm) 		Material Material Details Surface Treatment Length (nominal) Number of Effective Teeth
(teeth) 		Tooth Width W (or D)
(mm) 		End Face Machining Rack Height
(mm) 		Hole Machining

67.43 €

1 Available 7 Days -Not Applicable0.5499.51[General Steel Material] EN 1.1191 Equiv.EN 1.1191 Equiv.Black Oxide5003183[Provided] Both Ends Machined Type9KA (Side Through Hole)

55.42 €

1 Available 7 Days -Not Applicable0.5499.51[General Steel Material] EN 1.1191 Equiv.EN 1.1191 Equiv.Black Oxide5003183[Provided] Both Ends Machined Type9N (No Hole Machining)

19.71 €

1 Available 7 Days -Not Applicable0.898.01[General Steel Material] EN 1.1191 Equiv.EN 1.1191 Equiv.Black Oxide100394[Provided] Both Ends Machined Type10N (No Hole Machining)

58.51 €

1 Available 7 Days -Not Applicable0.8497.63[General Steel Material] EN 1.1191 Equiv.EN 1.1191 Equiv.Black Oxide5001984[Provided] Both Ends Machined Type10N (No Hole Machining)

12.32 €

1 Available 7 Days -Non-magnetic0.598.96[Brass] Free-Cutting Brass RodFree-Cutting BrassNot Provided100633[Provided] Both Ends Machined Type9N (No Hole Machining)

26.07 €

1 Available 7 Days -Non-magnetic0.5301.59[Brass] Free-Cutting Brass RodFree-Cutting BrassNot Provided3001923[Provided] Both Ends Machined Type9KA (Side Through Hole)

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