[Steel. Hubless, Thin Face Spur Gears (SSAY)] Series list   
diagram
Specifications
Precision grade JIS B 1702-1 grade N8 (*1) Surface hardness (less than HB194)
Gear teeth Standard full depth Surface treatment Black oxide
Pressure angle 20° Surface finish Cut
Material S45C Datum reference surface for teeth cutting Bore (H7)
Heat treatment - Modifications Possible
(*1) Old JIS B 1702 grade 4
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Catalog No.
Module
No. of teeth
Shape Bore
A
Pitch dia.
C
Outside dia.
D
Face width
E
Allowable torque(kgf·m)
Bending strength
Allowable torque(kgf·m)
Surface durability
Backlash low
(mm)
Backlash up
(mm)
Weight
(kg)
Unit Price
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  SSAY1-20 
  SSAY1-24 
  SSAY1-25 
  SSAY1-28 
  SSAY1-30 
  SSAY1-32 
  SSAY1-35 
  SSAY1-36 
  SSAY1-40 
  SSAY1-45 
  SSAY1-48 
  SSAY1-50 
  SSAY1-55 
  SSAY1-56 
  SSAY1-60 
  SSAY1-70 
  SSAY1-80 
  SSAY1-100 
120S56202260.350.0210.080.180.013 
124S56242660.460.0300.080.180.020 
125S56252760.480.0330.080.180.022 
128S56283060.570.0420.080.180.028 
130S56303260.620.0480.080.180.032 
132S56323460.680.0550.080.180.037 
135S56353760.760.0670.080.180.044 
136S56363860.790.0710.080.180.047 
140S56404260.900.0890.080.180.058 
145S56454761.050.110.080.180.074 
148S56485061.130.130.080.180.084 
150S58505261.190.140.080.180.090 
155S58555761.340.170.080.180.11 
156S58565861.370.180.080.180.11 
160S58606261.480.210.080.180.13 
170S58707261.780.290.080.180.18 
180S510808262.070.380.080.180.23 
1100S51010010262.670.610.080.180.37 
Product Precautions
[Caution on Product Characteristics]  ①The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Selection Hints 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.

[Caution on Secondary Operations]  ①Please read “Cautions on Performing Secondary Operations” when performing modification and/or secondary operations for safety concerns. Haguruma Kobo, the KHK's system for quick modification of KHK stock gears is also available.
 ②When performing secondary operations, be aware of deflection and distortion as the tooth is thin in width; deflection might occur by heat treatment.
 ③Avoid performing secondary operations that narrow the tooth width. as it affects precision and strength.
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