[Steel Screw Gears (SN)] Series list   
diagram
Specifications
Precision grade JIS B 1702-1 grade N9 (*1) Material S45C
Reference section of gear Normal plane Surface treatment Black oxide
Gear teeth Standard full depth Surface finish Cut
Normal pressure angle 20° Reference section of gear Bore (H7)
Helix angle 45° Modifications Possible
(*1) Old JIS B 1702 grade 5
  1 / 5 Page      478 items in total    Module   No. of Teeth       
< 1 | 2 | 3 | 4 | 5 >    precaution    
Catalog No.
Module
No. of teeth
Spiral hand 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)
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
  SN1-13R 
 SN1-13RJ6 
  SN1-13L 
 SN1-13LJ6 
  SN1-15R 
 SN1-15RJ6 
 SN1-15RJ8 
  SN1-15L 
 SN1-15LJ6 
 SN1-15LJ8 
  SN1-20R 
 SN1-20RJ8 
 SN1-20RJ10 
 SN1-20RJ12 
  SN1-20L 
 SN1-20LJ8 
 SN1-20LJ10 
 SN1-20LJ12 
  SN1-26R 
 SN1-26RJ10 
 SN1-26RJ12 
 SN1-26RJ14 
 SN1-26RJ15 
 SN1-26RJ16 
 SN1-26RJ17 
  SN1-26L 
 SN1-26LJ10 
 SN1-26LJ12 
 SN1-26LJ14 
 SN1-26LJ15 
 SN1-26LJ16 
 SN1-26LJ17 
  SN1-30R 
 SN1-30RJ10 
 SN1-30RJ12 
 SN1-30RJ14 
 SN1-30RJ15 
 SN1-30RJ16 
 SN1-30RJ17 
 SN1-30RJ18 
 SN1-30RJ19 
  SN1-30L 
 SN1-30LJ10 
 SN1-30LJ12 
 SN1-30LJ14 
 SN1-30LJ15 
 SN1-30LJ16 
 SN1-30LJ17 
 SN1-30LJ18 
 SN1-30LJ19 
  SN1.5-10R 
 SN1.5-10RJ8 
  SN1.5-10L 
 SN1.5-10LJ8 
  SN1.5-13R 
 SN1.5-13RJ10 
  SN1.5-13L 
 SN1.5-13LJ10 
  SN1.5-15R 
 SN1.5-15RJ10 
 SN1.5-15RJ12 
  SN1.5-15L 
 SN1.5-15LJ10 
 SN1.5-15LJ12 
  SN1.5-20R 
 SN1.5-20RJ12 
 SN1.5-20RJ14 
 SN1.5-20RJ15 
 SN1.5-20RJ16 
 SN1.5-20RJ17 
  SN1.5-20L 
 SN1.5-20LJ12 
 SN1.5-20LJ14 
 SN1.5-20LJ15 
 SN1.5-20LJ16 
 SN1.5-20LJ17 
  SN1.5-26R 
 SN1.5-26RJ12 
 SN1.5-26RJ14 
 SN1.5-26RJ15 
 SN1.5-26RJ16 
 SN1.5-26RJ17 
 SN1.5-26RJ18 
 SN1.5-26RJ19 
 SN1.5-26RJ20 
 SN1.5-26RJ22 
  SN1.5-26L 
 SN1.5-26LJ12 
 SN1.5-26LJ14 
 SN1.5-26LJ15 
 SN1.5-26LJ16 
 SN1.5-26LJ17 
 SN1.5-26LJ18 
 SN1.5-26LJ19 
 SN1.5-26LJ20 
 SN1.5-26LJ22 
  SN1.5-30R 
 SN1.5-30RJ12 
 SN1.5-30RJ14 
 SN1.5-30RJ15 
113RS161518.3820.38101020    0.0190.080.180.030    
113RS1T61518.3820.38101020  M450.0190.080.180.030    
113LS161518.3820.38101020    0.0190.080.180.030    
113LS1T61518.3820.38101020  M450.0190.080.180.030    
115RS161821.2123.21101020    0.0290.080.180.043    
115RS1T61821.2123.21101020  M450.0290.080.180.043    
115RS1T81821.2123.21101020  M5**50.0290.080.180.039    
115LS161821.2123.21101020    0.0290.080.180.043    
115LS1T61821.2123.21101020  M450.0290.080.180.043    
115LS1T81821.2123.21101020  M5**50.0290.080.180.039    
120RS182528.2830.28101020    0.0680.080.180.080    
120RS1T82528.2830.28101020  M550.0680.080.180.079    
120RS1K102528.2830.2810102041.8M450.0680.080.180.074    
120RS1K122528.2830.2810102041.8M450.0680.080.180.068    
120LS182528.2830.28101020    0.0680.080.180.080    
120LS1T82528.2830.28101020  M550.0680.080.180.079    
120LS1K102528.2830.2810102041.8M450.0680.080.180.074    
120LS1K122528.2830.2810102041.8M450.0680.080.180.068    
126RS1103036.7738.77101020    0.140.100.220.13    
126RS1K103036.7738.7710102041.8M450.140.100.220.12    
126RS1K123036.7738.7710102041.8M450.140.100.220.12    
126RS1K143036.7738.7710102052.3M450.140.100.220.11    
126RS1K153036.7738.7710102052.3M450.140.100.220.11    
126RS1K163036.7738.7710102052.3M450.140.100.220.10    
126RS1K173036.7738.7710102052.3M450.140.100.220.10    
126LS1103036.7738.77101020    0.140.100.220.13    
126LS1K103036.7738.7710102041.8M450.140.100.220.12    
126LS1K123036.7738.7710102041.8M450.140.100.220.12    
126LS1K143036.7738.7710102052.3M450.140.100.220.11    
126LS1K153036.7738.7710102052.3M450.140.100.220.11    
126LS1K163036.7738.7710102052.3M450.140.100.220.10    
126LS1K173036.7738.7710102052.3M450.140.100.220.10    
130RS1103542.4344.43101020    0.220.100.220.17    
130RS1K103542.4344.4310102041.8M450.220.100.220.17    
130RS1K123542.4344.4310102041.8M450.220.100.220.17    
130RS1K143542.4344.4310102052.3M450.220.100.220.16    
130RS1K153542.4344.4310102052.3M450.220.100.220.16    
130RS1K163542.4344.4310102052.3M450.220.100.220.15    
130RS1K173542.4344.4310102052.3M450.220.100.220.15    
130RS1K183542.4344.4310102062.8M550.220.100.220.14    
130RS1K193542.4344.4310102062.8M550.220.100.220.14    
130LS1103542.4344.43101020    0.220.100.220.17    
130LS1K103542.4344.4310102041.8M450.220.100.220.17    
130LS1K123542.4344.4310102041.8M450.220.100.220.17    
130LS1K143542.4344.4310102052.3M450.220.100.220.16    
130LS1K153542.4344.4310102052.3M450.220.100.220.16    
130LS1K163542.4344.4310102052.3M450.220.100.220.15    
130LS1K173542.4344.4310102052.3M450.220.100.220.15    
130LS1K183542.4344.4310102062.8M550.220.100.220.14    
130LS1K193542.4344.4310102062.8M550.220.100.220.14    
1.510RS181621.2124.21151025    0.0290.080.200.048    
1.510RS1T81621.2124.21151025  M5**50.0290.080.200.047    
1.510LS181621.2124.21151025    0.0290.080.200.048    
1.510LS1T81621.2124.21151025  M5**50.0290.080.200.047    
1.513RS1102327.5830.58151025    0.0630.100.220.088    
1.513RS1K102327.5830.5815102541.8M450.0630.100.220.085    
1.513LS1102327.5830.58151025    0.0630.100.220.088    
1.513LS1K102327.5830.5815102541.8M450.0630.100.220.085    
1.515RS1102531.8234.82151025    0.0950.100.220.12    
1.515RS1K102531.8234.8215102541.8M450.0950.100.220.11    
1.515RS1K122531.8234.8215102541.8M450.0950.100.220.11    
1.515LS1102531.8234.82151025    0.0950.100.220.12    
1.515LS1K102531.8234.8215102541.8M450.0950.100.220.11    
1.515LS1K122531.8234.8215102541.8M450.0950.100.220.11    
1.520RS1123042.4345.43151025    0.220.100.220.20    
1.520RS1K123042.4345.4315102541.8M450.220.100.220.20    
1.520RS1K143042.4345.4315102552.3M450.220.100.220.19    
1.520RS1K153042.4345.4315102552.3M450.220.100.220.18    
1.520RS1K163042.4345.4315102552.3M450.220.100.220.18    
1.520RS1K173042.4345.4315102552.3M450.220.100.220.17    
1.520LS1123042.4345.43151025    0.220.100.220.20    
1.520LS1K123042.4345.4315102541.8M450.220.100.220.20    
1.520LS1K143042.4345.4315102552.3M450.220.100.220.19    
1.520LS1K153042.4345.4315102552.3M450.220.100.220.18    
1.520LS1K163042.4345.4315102552.3M450.220.100.220.18    
1.520LS1K173042.4345.4315102552.3M450.220.100.220.17    
1.526RS1124055.1558.15151025    0.460.120.260.36    
1.526RS1K124055.1558.1515102541.8M450.460.120.260.35    
1.526RS1K144055.1558.1515102552.3M450.460.120.260.35    
1.526RS1K154055.1558.1515102552.3M450.460.120.260.34    
1.526RS1K164055.1558.1515102552.3M450.460.120.260.34    
1.526RS1K174055.1558.1515102552.3M450.460.120.260.33    
1.526RS1K184055.1558.1515102562.8M550.460.120.260.32    
1.526RS1K194055.1558.1515102562.8M550.460.120.260.32    
1.526RS1K204055.1558.1515102562.8M550.460.120.260.31    
1.526RS1K224055.1558.1515102562.8M550.460.120.260.30    
1.526LS1124055.1558.15151025    0.460.120.260.36    
1.526LS1K124055.1558.1515102541.8M450.460.120.260.35    
1.526LS1K144055.1558.1515102552.3M450.460.120.260.35    
1.526LS1K154055.1558.1515102552.3M450.460.120.260.34    
1.526LS1K164055.1558.1515102552.3M450.460.120.260.34    
1.526LS1K174055.1558.1515102552.3M450.460.120.260.33    
1.526LS1K184055.1558.1515102562.8M550.460.120.260.32    
1.526LS1K194055.1558.1515102562.8M550.460.120.260.32    
1.526LS1K204055.1558.1515102562.8M550.460.120.260.31    
1.526LS1K224055.1558.1515102562.8M550.460.120.260.30    
1.530RS1124563.6466.64151025    0.690.120.260.48    
1.530RS1K124563.6466.6415102541.8M4*50.690.120.260.47    
1.530RS1K144563.6466.6415102552.3M4*50.690.120.260.46    
1.530RS1K154563.6466.6415102552.3M4*50.690.120.260.46    
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]  ①Mating screw gears are made of the same material and may cause abrasion and scoring. It is recommended to mate Screw Gears composed of different materials.
 ②The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see precaution for more details.
 ③The 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.
 ④For offset shaft applications, match a RH with a RH, or LH with a LH , meshed to make a set of screw gears. For parallel shaft applications, mesh opposite hands (RH and LH) of helical gear sets. See precaution for more details.
 ⑤If the bore size is less thanφ4, the tolerance class is H8. If the bore size is φ5 orφ6, and the hole length exceeds 3 times of the bore size, the class is also H8.

[Caution on Secondary Operations]  ①Please read “Cautions on Performing Secondary Operations”when performing modification and/or secondary operations of Screw Gears. Haguruma Kobo, the KHK's system for quick modification of KHK stock gears is also available.
 ②Avoid performing secondary operations that narrow the tooth width. as it affects precision and strength.
  Please click here to Unit Price & Delivery Time.