Helical Gear（Surface Treatment：Black Oxide）

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  Helical Gear-Straight Bore Type/Straight Bore + Tap/Keyway + Tap/ Pressure Angle 20Deg.

  MISUMI

  [Features] Screw gears are helical gears that mesh with staggered shafts. Also called spiral gear. Mainly used for transmitting force between shafts. The helix angle is 45°.
  [Accuracy] New JIS B 1702-1 class 9 (old JIS B 1702 class 5)
  [Material] S45C equivalent (steel, iron), SUS304 (stainless steel), MC nylon (plastic)
  [ Surface treatment] Triiron tetroxide film
  [Compatible modules] Module 1.0, Module 1.5, Module 2.0, Module 2.5, Module 3.0
  [RoHS compliant]
  [Additional work available] Additional work on set screws is possible. Masu.
  [Other names] Screw gears are a type of helical gear, and are also called spiral gears.

  CAD ：

  2D / 3D

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  1 ～ 3	6 ～ 65	10 ～ 30	General Steel	Not Provided	Not Provided	Black Oxide	-	-	-	-

  

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  Ground Helical Gear KHG

  KOHARA GEAR INDUSTRY

  Thermally refined SCM440 material, with induction hardened tooth surface, before hole standard ground precision JISN6 high strength grade, excellent wear-resistance ground helical gear. Adopting the axis-perpendicular module, the assembly distance can be easily calculated like a spur gear, and replacement with a spur gear of the same specification is possible.

  CAD ：

  2D / 3D

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  1 ～ 3	6 ～ 30	15 ～ 100	General Steel	Thermal Refined, Induction Hardened	Provided	Black Oxide	8 ～ 25	Round hole / Round hole+tap / Keyway + Tap	Right / Left	-

  From: ₹ 4,504.49
  Days to Ship: 5 Day(s) or more

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  Ground Helical Gear ZSTP

  KOHARA GEAR INDUSTRY

  Thermally refined SCM440 material, with induction hardened tooth surface precision JISN6 grade ground helical gear. Use as an mating pinion for Schneeberger ground rack. Designed so one rotation of the pinion is a mm integer movement amount, and the assembly distance is also an integer mm positive gear shift.

  CAD ：

  2D / 3D

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  3 ～ 6	20 ～ 30	18 ～ 30	General Steel	Thermal Refined, Induction Hardened	Provided	Black Oxide	30 ～ 60	Round hole	Left	-

  From: ₹ 10,338.96
  Days to Ship: 6 Day(s) or more

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  Helical Gear

  KOHARA GEAR INDUSTRY

  Meshing ratio is large compared with spur gear, for smooth engagement, effective for noise and vibration control.

  CAD ：

  2D / 3D

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  2 ～ 3	12 ～ 20	15 ～ 90	General Steel	Not Provided	Not Provided	Black Oxide	25 ～ 35	Round hole	Right / Left	-

  From: ₹ 1,276.96
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  Helical Gear ES

  AOKI SEIMITSU KOGYO

  Allowable torque is larger than that of a spur gear of the same size, and tooth contact sound is also quiet.

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  1.5 ～ 4	10 ～ 25	15 ～ 40	General Steel	Not Provided	Provided	Black Oxide	15 ～ 32	Round hole	Right / Left	-

  From: ₹ 1,175.87
  Days to Ship: 8 Day(s) or more

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  Spiral Gear IS

  AOKI SEIMITSU KOGYO

  [Features]Gear commonly used for changing the direction of rotary shaft. [Specifications]Material: S45C (JIS G 4051) Tooth profile, accuracy: Full teeth, JISN8 class (former JIS4 class) Pressure angle: 20° helix angle: 45°. Surface treatment: Black oxide coating. Tooth surface finish: Cutting. Hole diameter tolerance: JIS H7 class

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  1 ～ 4	10 ～ 20	10 ～ 36	General Steel	Not Provided	Not Provided	Black Oxide	10 ～ 32	Round hole	Right / Left	-

  From: ₹ 830.40
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  Helical Gear SN

  KOHARA GEAR INDUSTRY

  Spiral gears have crossed axes (R & R, L & L) and parallel axes (R & L), depending on combinations of screw direction. Pay attention to axial direction and rotational direction.

  CAD ：

  2D / 3D

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  1 ～ 4	6 ～ 20	10 ～ 30	General Steel	Not Provided	Not Provided	Black Oxide	10 ～ 30	Round hole / Round hole+tap / Keyway + Tap	Right / Left	-

  From: ₹ 809.62
  Days to Ship: 5 Day(s) or more

  5 Day(s) or more

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  Tooth Polishing Helical Gear ZSTP

  KOHARA GEAR INDUSTRY

  One rotation of this pinion has an assembling distance and travel distance measurable with integer millimeters, in order to provide maximum convenience to the customer.

  Module	Shaft Bore Dia., Shaft Dia.	Number of Teeth(Teeth)	Material(mm)	Heat Treatment(φ)	Ground Tooth	Surface Treatment	Tooth Width(mm)	Shaft Bore Config.	Twisting Direction	Gear Shape
  2	12 ～ 18	18 ～ 30	General Steel	Thermal Refined, Induction Hardened	Provided	Black Oxide	25	Round hole	Left	-

  From: ₹ 9,035.15
  Days to Ship: 6 Day(s) or more

  6 Day(s) or more

Brand
Product Series
CAD
From
Days to Ship
Module
Shaft Bore Dia., Shaft Dia.
Number of Teeth(Teeth)
Material(mm)
Heat Treatment(φ)
Ground Tooth
Surface Treatment
Tooth Width(mm)
Shaft Bore Config.
Twisting Direction
Gear Shape

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Brand	MISUMI	KOHARA GEAR INDUSTRY	KOHARA GEAR INDUSTRY	KOHARA GEAR INDUSTRY	AOKI SEIMITSU KOGYO	AOKI SEIMITSU KOGYO	KOHARA GEAR INDUSTRY	KOHARA GEAR INDUSTRY
Product Series	Helical Gear-Straight Bore Type/Straight Bore + Tap/Keyway + Tap/ Pressure Angle 20Deg.	Ground Helical Gear KHG	Ground Helical Gear ZSTP	Helical Gear	Helical Gear ES	Spiral Gear IS	Helical Gear SN	Tooth Polishing Helical Gear ZSTP
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D			2D / 3D
From		₹ 4,504.49	₹ 10,338.96	₹ 1,276.96	₹ 1,175.87	₹ 830.40	₹ 809.62	₹ 9,035.15
Days to Ship	8 Day(s) or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more	8 Day(s) or more	8 Day(s) or more	5 Day(s) or more	6 Day(s) or more
Module	1 ～ 3	1 ～ 3	3 ～ 6	2 ～ 3	1.5 ～ 4	1 ～ 4	1 ～ 4	2
Shaft Bore Dia., Shaft Dia.	6 ～ 65	6 ～ 30	20 ～ 30	12 ～ 20	10 ～ 25	10 ～ 20	6 ～ 20	12 ～ 18
Number of Teeth(Teeth)	10 ～ 30	15 ～ 100	18 ～ 30	15 ～ 90	15 ～ 40	10 ～ 36	10 ～ 30	18 ～ 30
Material(mm)	General Steel	General Steel	General Steel	General Steel	General Steel	General Steel	General Steel	General Steel
Heat Treatment(φ)	Not Provided	Thermal Refined, Induction Hardened	Thermal Refined, Induction Hardened	Not Provided	Not Provided	Not Provided	Not Provided	Thermal Refined, Induction Hardened
Ground Tooth	Not Provided	Provided	Provided	Not Provided	Provided	Not Provided	Not Provided	Provided
Surface Treatment	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide
Tooth Width(mm)	-	8 ～ 25	30 ～ 60	25 ～ 35	15 ～ 32	10 ～ 32	10 ～ 30	25
Shaft Bore Config.	-	Round hole / Round hole+tap / Keyway + Tap	Round hole	Round hole	Round hole	Round hole	Round hole / Round hole+tap / Keyway + Tap	Round hole
Twisting Direction	-	Right / Left	Left	Right / Left	Right / Left	Right / Left	Right / Left	Left
Gear Shape	-	-	-	-	-	-	-	-

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