[Ground Helical Gears (KHG)] Series list   
diagram
Specifications
Precision grade JIS B 1702-1 grade N6 (*1) Heat treatment Normalizing, tooth surfaces induction hardened
Reference section of gear Rotating plane Surface hardness HRC50 - 60
Gear teeth Standard full depth Surface treatment Black oxide except ground surface
Transverse pressure 20° Surface finish Ground
Helix angle 21°30′ Datum reference surface for teeth grinding Bore (H7)
Material SCM440 Modifications Possible
(*1) Old JIS B 1702 grade 2
  1 / 15 Page      1454 items in total    Module   No. of Teeth       
< 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 ... 15 >    precaution    
Catalog No.
Module
No. of teeth
Hand of thread Shape Bore
A
Hub dia.
B
Pitch dia.
C
Outside dia.
D
Face width
E
Hub Width
F
Total length
G
Key width Key depth Socket head screw
Size
Socket head screw
J
Allowable torque(kgf·m)
Bending strength
Allowable torque(kgf·m)
Surface durability
Backlash low
(mm)
Backlash up
(mm)
Weight
(kg)
Unit Price
Click Here
Prices of J Series Products
1-4
Prices of J Series Products
5-10
Prices of J Series Products
11-20
  KHG1-20R 
 KHG1-20RJ6 
  KHG1-20L 
 KHG1-20LJ6 
  KHG1-22R 
 KHG1-22RJ8 
  KHG1-22L 
 KHG1-22LJ8 
  KHG1-24R 
 KHG1-24RJ8 
  KHG1-24L 
 KHG1-24LJ8 
  KHG1-25R 
 KHG1-25RJ8 
  KHG1-25L 
 KHG1-25LJ8 
  KHG1-28R 
 KHG1-28RJ8 
  KHG1-28L 
 KHG1-28LJ8 
  KHG1-30R 
 KHG1-30RJ10 
 KHG1-30RJ12 
  KHG1-30L 
 KHG1-30LJ10 
 KHG1-30LJ12 
  KHG1-32R 
 KHG1-32RJ10 
 KHG1-32RJ12 
  KHG1-32L 
 KHG1-32LJ10 
 KHG1-32LJ12 
  KHG1-35R 
 KHG1-35RJ10 
 KHG1-35RJ12 
  KHG1-35L 
 KHG1-35LJ10 
 KHG1-35LJ12 
  KHG1-36R 
 KHG1-36RJ10 
 KHG1-36RJ12 
  KHG1-36L 
 KHG1-36LJ10 
 KHG1-36LJ12 
  KHG1-40R 
 KHG1-40RJ10 
 KHG1-40RJ12 
 KHG1-40RJ14 
 KHG1-40RJ15 
 KHG1-40RJ16 
 KHG1-40RJ17 
  KHG1-40L 
 KHG1-40LJ10 
 KHG1-40LJ12 
 KHG1-40LJ14 
 KHG1-40LJ15 
 KHG1-40LJ16 
 KHG1-40LJ17 
  KHG1-44R 
 KHG1-44RJ10 
 KHG1-44RJ12 
 KHG1-44RJ14 
 KHG1-44RJ15 
 KHG1-44RJ16 
 KHG1-44RJ17 
  KHG1-44L 
 KHG1-44LJ10 
 KHG1-44LJ12 
 KHG1-44LJ14 
 KHG1-44LJ15 
 KHG1-44LJ16 
 KHG1-44LJ17 
  KHG1-45R 
 KHG1-45RJ10 
 KHG1-45RJ12 
 KHG1-45RJ14 
 KHG1-45RJ15 
 KHG1-45RJ16 
 KHG1-45RJ17 
  KHG1-45L 
 KHG1-45LJ10 
 KHG1-45LJ12 
 KHG1-45LJ14 
 KHG1-45LJ15 
 KHG1-45LJ16 
 KHG1-45LJ17 
  KHG1-48R 
 KHG1-48RJ10 
 KHG1-48RJ12 
 KHG1-48RJ14 
 KHG1-48RJ15 
 KHG1-48RJ16 
 KHG1-48RJ17 
  KHG1-48L 
 KHG1-48LJ10 
 KHG1-48LJ12 
 KHG1-48LJ14 
 KHG1-48LJ15 
 KHG1-48LJ16 
 KHG1-48LJ17 
120RS1617202281018    0.790.510.080.160.034    
120RS1T617202281018  M450.790.510.080.160.033    
120LS1617202281018    0.790.510.080.160.034    
120LS1T617202281018  M450.790.510.080.160.033    
122RS1818222481018    0.910.630.080.160.037    
122RS1T818222481018  M5**50.910.630.080.160.036    
122LS1818222481018    0.910.630.080.160.037    
122LS1T818222481018  M5**50.910.630.080.160.036    
124RS1820242681018    1.030.760.080.160.046    
124RS1T820242681018  M551.030.760.080.160.045    
124LS1820242681018    1.030.760.080.160.046    
124LS1T820242681018  M551.030.760.080.160.045    
125RS1820252781018    1.090.830.080.160.048    
125RS1T820252781018  M551.090.830.080.160.048    
125LS1820252781018    1.090.830.080.160.048    
125LS1T820252781018  M551.090.830.080.160.048    
128RS1820283081018    1.271.060.080.160.056    
128RS1T820283081018  M551.271.060.080.160.055    
128LS1820283081018    1.271.060.080.160.056    
128LS1T820283081018  M551.271.060.080.160.055    
130RS11025303281018    1.391.230.080.160.072    
130RS1K102530328101841.8M451.391.230.080.160.070    
130RS1K122530328101841.8M451.391.230.080.160.065    
130LS11025303281018    1.391.230.080.160.072    
130LS1K102530328101841.8M451.391.230.080.160.070    
130LS1K122530328101841.8M451.391.230.080.160.065    
132RS11025323481018    1.371.290.080.160.078    
132RS1K102532348101841.8M451.371.290.080.160.076    
132RS1K122532348101841.8M451.371.290.080.160.071    
132LS11025323481018    1.371.290.080.160.078    
132LS1K102532348101841.8M451.371.290.080.160.076    
132LS1K122532348101841.8M451.371.290.080.160.071    
135RS11025353781018    1.541.570.080.160.088    
135RS1K102535378101841.8M451.541.570.080.160.086    
135RS1K122535378101841.8M451.541.570.080.160.081    
135LS11025353781018    1.541.570.080.160.088    
135LS1K102535378101841.8M451.541.570.080.160.086    
135LS1K122535378101841.8M451.541.570.080.160.081    
136RS11025363881018    1.601.670.080.160.091    
136RS1K102536388101841.8M451.601.670.080.160.089    
136RS1K122536388101841.8M451.601.670.080.160.085    
136LS11025363881018    1.601.670.080.160.091    
136LS1K102536388101841.8M451.601.670.080.160.089    
136LS1K122536388101841.8M451.601.670.080.160.085    
140RS11030404281018    1.832.100.080.160.12    
140RS1K103040428101841.8M451.832.100.080.160.12    
140RS1K123040428101841.8M451.832.100.080.160.12    
140RS1K143040428101852.3M451.832.100.080.160.11    
140RS1K153040428101852.3M451.832.100.080.160.11    
140RS1K163040428101852.3M451.832.100.080.160.10    
140RS1K173040428101852.3M451.832.100.080.160.10    
140LS11030404281018    1.832.100.080.160.12    
140LS1K103040428101841.8M451.832.100.080.160.12    
140LS1K123040428101841.8M451.832.100.080.160.12    
140LS1K143040428101852.3M451.832.100.080.160.11    
140LS1K153040428101852.3M451.832.100.080.160.11    
140LS1K163040428101852.3M451.832.100.080.160.10    
140LS1K173040428101852.3M451.832.100.080.160.10    
144RS11030444681018    2.062.580.080.160.14    
144RS1K103044468101841.8M452.062.580.080.160.14    
144RS1K123044468101841.8M452.062.580.080.160.13    
144RS1K143044468101852.3M452.062.580.080.160.13    
144RS1K153044468101852.3M452.062.580.080.160.12    
144RS1K163044468101852.3M452.062.580.080.160.12    
144RS1K173044468101852.3M452.062.580.080.160.12    
144LS11030444681018    2.062.580.080.160.14    
144LS1K103044468101841.8M452.062.580.080.160.14    
144LS1K123044468101841.8M452.062.580.080.160.13    
144LS1K143044468101852.3M452.062.580.080.160.13    
144LS1K153044468101852.3M452.062.580.080.160.12    
144LS1K163044468101852.3M452.062.580.080.160.12    
144LS1K173044468101852.3M452.062.580.080.160.12    
145RS11030454781018    2.122.710.080.160.14    
145RS1K103045478101841.8M452.122.710.080.160.14    
145RS1K123045478101841.8M452.122.710.080.160.14    
145RS1K143045478101852.3M452.122.710.080.160.13    
145RS1K153045478101852.3M452.122.710.080.160.13    
145RS1K163045478101852.3M452.122.710.080.160.12    
145RS1K173045478101852.3M452.122.710.080.160.12    
145LS11030454781018    2.122.710.080.160.14    
145LS1K103045478101841.8M452.122.710.080.160.14    
145LS1K123045478101841.8M452.122.710.080.160.14    
145LS1K143045478101852.3M452.122.710.080.160.13    
145LS1K153045478101852.3M452.122.710.080.160.13    
145LS1K163045478101852.3M452.122.710.080.160.12    
145LS1K173045478101852.3M452.122.710.080.160.12    
148RS11030485081018    2.293.110.080.160.16    
148RS1K103048508101841.8M452.293.110.080.160.16    
148RS1K123048508101841.8M452.293.110.080.160.15    
148RS1K143048508101852.3M452.293.110.080.160.14    
148RS1K153048508101852.3M452.293.110.080.160.14    
148RS1K163048508101852.3M452.293.110.080.160.14    
148RS1K173048508101852.3M452.293.110.080.160.13    
148LS11030485081018    2.293.110.080.160.16    
148LS1K103048508101841.8M452.293.110.080.160.16    
148LS1K123048508101841.8M452.293.110.080.160.15    
148LS1K143048508101852.3M452.293.110.080.160.14    
148LS1K153048508101852.3M452.293.110.080.160.14    
148LS1K163048508101852.3M452.293.110.080.160.14    
148LS1K173048508101852.3M452.293.110.080.160.13    
Product Precautions
[Precaution on J Series Products]  ①Since J series are available-on-request products, it requires a lead-time within 2 working-days (excludes the day ordered), after placing an order. Number of products we can handle for one order is 1 to 20 units. In case of ordering products over 20 units, we shall submit a quote.
 ② products which would otherwise have a very long tapped hole are conterbored to reduce the length of the tap. (Products marked with “ * “ are the tap size). Areas of those products which have been re-worked are not black oxide coated.
 ③Keyways are made according to JIS B1301 standards and Js 9 tolerance. For products with a tapped hole, a set screw is included.
 ④For products, the use of S1T shaped Set Screws for fastening gears to a shaft is a method only applicable to the usage for light loads. For secure fastening, please use dowel pins in combination.

[Caution on Product Characteristics]  ①The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see precaution for more details.
 ②The backlash values shown in the table are the theoretical values for the backlash in the normal direction of a pair of identical gears in mesh.
 ③These gears produce axial thrust forces. Please see precaution
 ④Right-handed and left-handed helical gears in the same module are designed to mesh as a pair, but they are not interchangeable with SH type helical gears, as these products are of the transverse module.

[Caution on Secondary Operations]  ①Please read “Cautions on Performing Secondary Operations”when performing modification and/or secondary operations of Helical Gears. Haguruma Kobo, the KHK's system for quick modification of KHK stock gears is also available.
 ②Due to gear teeth induction hardened, no secondary operations can be performed on tooth areas including the bottom land (approx. 2 to 3 mm).
 ③While cutting off the entire hub may cause curvature deformation by residual stress, some products are stress relief annealed after refining the material.
  Please click here to Unit Price & Delivery Time.