[Thermal Refined Ground Racks (KRG/KRGF/KRGD)] Series list   
diagram
Specifications
Precision grade KHK R 001 grade 1 Surface hardness HB225 - 285
Gear teeth Standard full depth Surface treatment -
Pressure angle 20° Surface finish Ground
Material SCM440 Datum reference surface for teeth grinding Bottom surface
Heat treatment Normalizing only Modifications Possible
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Catalog No.
Module
Effective No. of teeth Shape Total length
A
Face width
B
Height
C
Height to pitch line
D
Mounting hole dimensions
E
Mounting hole dimensions
F
Mounting hole dimensions
G
No. of mounting holes Mounting screw size Counterbore dimensions
H
Counterbore dimensions
I
Counterbore dimensions
J
Allowable force(kgf)
Bending strength
Allowable force(kgf)
Surface durability
Weight
(kg)
Unit Price
Click Here
  KRG1-100 
  KRG1-500 
  KRG1.5-100 
  KRG1.5-500 
  KRG2-100 
  KRG2-500 
  KRG2.5-100 
  KRG2.5-500 
  KRG3-100 
  KRG3-500 
  KRGF1-1000 
  KRGF1.5-1000 
  KRGF2-1000 
  KRGF2.5-1000 
  KRGF3-1000 
  KRGD1-500 
  KRGD1.5-500 
  KRGD2-500 
  KRGD2.5-500 
  KRGD3-500 
129R198101514        15665.30.11 
1159R1505101514        15665.30.55 
1.520R1101152018.5        3521470.22 
1.5105R1505152018.5        3521471.10 
214R198202523        6252610.35 
279R1505202523        6252611.82 
2.511R1100253027.5        9774080.54 
2.563R1505253027.5        9774082.73 
39R1101303532        14105880.76 
352R1505303532        14105883.81 
1318RF999.03101514        15665.31.49 
1.5212RF999.03152018.5        3521472.18 
2160RF1005.31202523        6252613.63 
2.5128RF1005.31253027.5        9774085.43 
3106RF999.03303532        14105887.53 
1159RD499.51101514639.751404M4584.515665.30.54 
1.5106RD499.51152018.5839.751404M561063521471.06 
280RD502.652025231041.321404M671176252611.77 
2.564RD502.65253027.51241.321404M88.61499774082.62 
353RD499.513035321439.751404M1010.817.51114105883.59 
Product Precautions
[Caution on Product Characteristics]  ①The allowable forces shown in the table are the calculated values according to the assumed usage conditions. Please see Selection Hints for more details
 ②The backlash value of a rack is calculated from the addition of 1/2 the backlash of the mating pinion and the value shown in the table “Backlash of Amount of Tooth Thinning”.
 ③After attaching the racks to the base, please fasten with dowel pins. Clamping only by mounting screws could possibly cause the screws to be broken, due to the heavy load.

[Caution on Secondary Operations]  ①Please read “Cautions on Performing Secondary Operations”when performing modification and/or secondary operations of Racks. Haguruma Kobo, the KHK's system for quick modification of KHK stock gears is also available.
  Please click here to Unit Price & Delivery Time.