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Miter Gears

Miter gear – changes transmission direction only

Miter gears are one type of bevel gears where the two rotational axes intersect. When speaking of narrow definition of bevel gears with ability to increase or decrease speed, miter gears do not have that ability due to the pair’s same number of teeth. Their purpose is limited to the change in transmission direction. Because they are a type of bevel gears, the basic characteristic of bevel gears exist such as presence of gear forms of straight cut, spiral cut and zerol types.

Also, because the shafts can be set to any angle, there are miter gears with non-90 degree (non-perpendicular) angle called angular miter gears. KHK is capable of producing angular miter gears with shaft angles in the range of 45 to 120 degrees.

Because a pair of straight tooth miter gears has the same number of teeth, with the exception of minor differences such as set screw holes and key ways, the same two gears can mate with each other. However, in the case of spiral miter gears, even when the number of teeth are the same, the twisting directions are different. Therefore, the same gear cannot be meshed together, and it is necessary to pair the right and left handed pairs.

Also, to produce straight tooth miter gears. KHK utilizes Coniflex made by Gleason Company that allows the use of crowning method as in making bevel gears which creates final products superior in quietness.

Incidentally, originally the hat worn by Catholic bishop is called mitre and in woodworking the word miter joint is used.

How to Buy
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Please enter part number here for a price and a drawing of the gear
SM_MiterGears

SM

Steel Miter Gears

Module : 1 – 8
Material : S45C
Hardening : None
Tooth finish : Cut (non Ground)
Grade : JIS 3

Popular straight miter with many uses.

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SMA SMB SMC_MiterGears2

SMA / SMB / SMC

Finished Bore Miter Gears

Module : 1 – 8
Material : S45C
Hardening : Induction hardening
Tooth finish : Cut (non Ground)
Grade : JIS 4

Usable without re-machining, available in three bore sizes.

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SMS_MiterGears

SMS

Spiral Miter Gears

Module : 1 – 8
Material : S45C
Hardening : Induction hardening
Tooth finish : Cut (non Ground)
Grade : JIS 4

Popular spiral miter gears with large selection of modules and numbers of teeth.

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SMSG_MiterGears

SMSG

Ground Spiral Miter Gears

Module : 2 – 5
Material : S45C
Hardening : Induction hardening
Tooth finish : Ground teeth
Grade : JIS 2

Reasonably priced ground gear, yet re-machinable except the gear teeth.

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SMZG_MiterGears

SMZG

Ground Zerol Miter Gears

Module : 2 – 3
Material : S45C
Hardening : Induction hardening
Tooth finish : Ground teeth
Grade : JIS 2

Spiral miter gear with less than 10 degrees helix angle. The force acting on the gear is the same as straight miter and is a high precision product.

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MM_miter_gears

MM

Curburized/Hardened Miter Gears

Module : 2 – 5
Material : SCM415
Hardening : Curburized
Tooth finish : Cut (non Ground)
Grade : JIS 4

Compared to SM miters, stronger and better abrasion resistant, secondary operation is possible.

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MMS_MiterGears

MMS

Spiral Miter Gears

Module : 2 – 5
Material : SCM415
Hardening : Curburized
Tooth finish : Cut (non Ground)
Grade : JIS 4

Using SCM415 material, only teeth are induction hardened allowing secondary operations elsewhere.

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MMSA MMSB_MiterGears

MMSA / MMSB

Finished Bore Spiral Miter Gears

Module : 1 – 10
Material : SCM415
Hardening : Curburized
Tooth finish : Cut (non Ground)
Grade : JIS 4

Ready to use without performing secondary operations. Strong and abrasion resistant.

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MMSG_MiterGears

MMSG

Ground Spiral Miter Gears

Module : 2 – 4
Material : SCM415
Hardening : Curburized
Tooth finish : Ground teeth
Grade : JIS 1

High strength and superior abrasion resistance, high speed and high torque transmission allow for compact design.

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KSP miter gears_MiterGears

Nissei KSP

Ground Spiral Miter Gears

Module : 1.5 – 6
Material : SCM415
Hardening : Curburized
Tooth finish : Ground teeth
Grade : JIS 0

Superior performance in high speed use with respect to noise and vibration.

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SUM_MiterGears

SUM

Stainless Steel Miter Gears

Module : 1 – 4
Material : SUS303
Hardening : None
Tooth finish : Cut (non Ground)
Grade : JIS 3

Uses SUS303 material. Best suited for food machinery for its rust resistance.

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SUMA_MiterGears

SUMA

Finished Bore Stainless Steel Miter Gears

Module : 1 – 4
Material : SUS303
Hardening : None
Tooth finish : Cut (non Ground)
Grade : JIS 3

Usable without re-machining in stainless steel.

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LM_MiterGears

LM

Sintered Metal Miter Gears

Module : 0.8 – 1.5
Material : SMF5040
Hardening : None
Hardening : None
Tooth finish : Sintered
Grade : JIS 5

Mass produced low cost sintered gear. Small and lightweight products.

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SAM_MiterGears

SAM

Angular Miter Gears

Module : 1.5 – 3
Material : S45C
Hardening : None
Tooth finish : Cut (non Ground)
Grade : JIS 3

Available in three types: 45, 60 and 120 degree shaft angles.

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PM_MiterGears

PM

Plastic Miter Gears

Module : 1 – 4
Material : MC901
Hardening : None
Tooth finish : Cut (non Ground)
Grade : JIS 4

Light products using MC Nylon, possible to use without lubrication.

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DM_1_MiterGears

DM

Injection Molded Miter Gears

Module : 0.5 – 1.5
Material : DURACON
Hardening : None
Tooth finish : Injection Molded
Grade : JIS 6

Injection molded mass produced item suitable for office machines.

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BB_MiterGears

BB

Sintered Metal Bushings

Related links :
Technical Information of Miter Gears
Bevel Gears– Main page of bevel gears
Equivalent tables of each standard relating to raw materials and precision grades of gears
等径锥齿轮 – 中文页

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