[Helical Racks (SRH·SRHF·SRHFD)] Series list   
diagram
Specifications
Precision grade KHK R 001 grade 5 Heat treatment -
Reference section of gear Normal plane Surface hardness (less than HRB95)
Gear teeth Standard full depth Surface treatment Black oxide
Normal pressure angle 20° Surface finish Cut
Helix angle 15° Datum reference surface for teeth cutting Bottom surface
Material S45C Modifications Possible
  1 / 1 Page      20 items in total    Module     
< 1 >    precaution    
Catalog No.
Module
Effective No. of teeth Hand of thread Shape Total length
A
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
  SRH2-100R 
  SRH2-100L 
  SRH2-500R 
  SRH2-500L 
  SRH2-1000R 
  SRH2-1000L 
  SRH3-100R 
  SRH3-100L 
  SRH3-500R 
  SRH3-500L 
  SRH3-1000R 
  SRH3-1000L 
  SRHF2-1000R 
  SRHF2-1000L 
  SRHF3-1000R 
  SRHF3-1000L 
  SRHFD2-1000R 
  SRHFD2-1000L 
  SRHFD3-1000R 
  SRHFD3-1000L 
212RRR95 252523        4811600.43 
212LRL95 252523        4811600.43 
275RR1505 252523        4811602.28 
275LR1505 252523        4811602.28 
2152RR11010 252523        4811604.56 
2152LR11010 252523        4811604.56 
37RRR95 353532        10103590.84 
37LRL95 353532        10103590.84 
349RR1505 353532        10103594.44 
349LR1505 353532        10103594.44 
3101RR11010 353532        10103598.88 
3101LR11010 353532        10103598.88 
2153RRFR995.241001.94252523        4811604.49 
2153LRFL995.241001.94252523        4811604.49 
3102RRFR995.241004.62353532        10103598.75 
3102LRFL995.241004.62353532        10103598.75 
2153RRDR995.241001.942525231047.621806M671174811604.43 
2153LRDL995.241001.942525231047.621806M671174811604.43 
3102RRDR995.241004.623535321447.621806M1010.817.51110103598.52 
3102LRDL995.241004.623535321447.621806M1010.817.51110103598.52 
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”.
 ③Please use SH Helical Gears as the mating pinion.
 ④These gears produce axial thrust forces. See precaution for more details.
 ⑤After 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.
 ②Having a decarburized layer (approx. 0.5mm thickness) on the rectangular surfaces, the tooth tips cannot have the hardness you designate, if induction hardening is applied.
 ③Avoid gear tooth hardening of the Racks with bolt holes, due to deformation occurring at the mounting hole and the difficulty of straightening.
  Please click here to Unit Price & Delivery Time.