[Ground Spur Gears (MSGA·MSGB)] Series list   
diagram
Specifications
Precision grade JIS B 1702-1 grade N5 (*1) Surface hardness HRC55 - 60
Gear teeth Standard full depth Surface treatment -
Pressure angle 20° Surface finish Ground
Material SCM415 Datum reference surface for teeth griding Bore (H7)
Heat treatment Overall carburizing Modifications Not possible
(*1) Old JIS B 1702 grade 1
  2 / 2 Page      180 items in total    Module   No. of Teeth       
< 1 | 2 >    precaution    
Catalog No.
Module
No. of teeth
Shape Bore
A
Hub dia.
B
Pitch dia.
C
Outside dia.
D
Face width
E
Hub Width
F
Total length
G
Web thickness
H
Rim O.D.
I
Key width Key depth Allowable torque(kgf·m)
Bending strength
Allowable torque(kgf·m)
Surface durability
Backlash low
(mm)
Backlash up
(mm)
Weight
(kg)
Unit Price
Click Here
  MSGA2.5-18 
  MSGB2.5-18 
  MSGA2.5-20 
  MSGB2.5-20 
  MSGA2.5-24 
  MSGB2.5-24 
  MSGA2.5-25 
  MSGB2.5-25 
  MSGA2.5-30 
  MSGB2.5-30 
  MSGA2.5-35 
  MSGB2.5-35 
  MSGA2.5-36 
  MSGB2.5-36 
  MSGA2.5-40 
  MSGB2.5-40 
  MSGA2.5-45 
  MSGB2.5-45 
  MSGA2.5-48 
  MSGB2.5-48 
  MSGA2.5-50 
  MSGB2.5-50 
  MSGA2.5-55 
  MSGB2.5-55 
  MSGA2.5-60 
  MSGB2.5-60 
  MSGA2.5-70 
  MSGB2.5-70 
  MSGA3-15 
  MSGB3-15** 
  MSGA3-18 
  MSGB3-18 
  MSGA3-20 
  MSGB3-20 
  MSGA3-24 
  MSGB3-24 
  MSGA3-25 
  MSGB3-25 
  MSGA3-30 
  MSGB3-30 
  MSGA3-35 
  MSGB3-35 
  MSGA3-36 
  MSGB3-36 
  MSGA3-40 
  MSGB3-40 
  MSGA3-45 
  MSGB3-45 
  MSGA3-48 
  MSGB3-48 
  MSGA3-50 
  MSGB3-50 
  MSGA3-55 
  MSGB3-55 
  MSGA3-60 
  MSGB3-60 
  MSGA4-15 
  MSGB4-15** 
  MSGA4-18 
  MSGB4-18 
  MSGA4-20 
  MSGB4-20 
  MSGA4-24 
  MSGB4-24 
  MSGA4-25 
  MSGB4-25 
  MSGA4-30 
  MSGB4-30 
  MSGA4-35 
  MSGB4-35 
  MSGA4-36 
  MSGB4-36 
  MSGA4-40 
  MSGB4-40 
  MSGA4-45 
  MSGB4-45 
  MSGA4-48 
  MSGB4-48 
  MSGA4-50 
  MSGB4-50 
2.518S118384550251237  62.819.410.90.100.200.34 
2.518S120384550251237  62.819.410.90.100.200.32 
2.520S118405055251237  62.822.713.70.100.200.42 
2.520S122405055251237  62.822.713.70.100.200.39 
2.524S118406065251237  62.829.420.50.120.220.59 
2.524S122406065251237  62.829.420.50.120.220.56 
2.525S1204562.567.5251237  62.831.222.40.120.220.66 
2.525S1254562.567.5251237  83.331.222.40.120.220.60 
2.530S122507580251237  62.840.032.80.120.220.94 
2.530S128507580251237  83.340.032.80.120.220.87 
2.535S1255587.592.5251237  83.349.045.30.120.221.25 
2.535S1305587.592.5251237  83.349.045.30.120.221.19 
2.536S125559095251237  83.350.848.00.120.221.32 
2.536S130559095251237  83.350.848.00.120.221.26 
2.540S12555100105251237  83.355.357.10.120.221.61 
2.540S13255100105251237  103.355.357.10.120.221.52 
2.545S13060112.5117.5251237  83.364.173.20.140.242.00 
2.545S13560112.5117.5251237  103.364.173.20.140.241.93 
2.548S13060120125251237  83.369.583.90.140.242.27 
2.548S13560120125251237  103.369.583.90.140.242.20 
2.550S13060125130251237  83.373.091.50.140.242.46 
2.550S13560125130251237  103.373.091.50.140.242.39 
2.555S13070137.5142.5251237  83.382.01120.140.243.06 
2.555S14070137.5142.5251237  123.382.01120.140.242.90 
2.560S13070150155251237  83.390.91340.140.243.62 
2.560S14070150155251237  123.390.91340.140.243.45 
2.570S2408517518025123717150123.31041760.140.244.24 
2.570S2508517518025123717150143.81041760.140.244.03 
315S118364551301545  62.825.212.70.100.200.40 
315S122364551301545  62.825.212.70.100.200.35 
318S120455460301545  62.833.419.10.120.220.61 
318S125455460301545  83.333.419.10.120.220.54 
320S120456066301545  62.839.124.10.120.220.74 
320S125456066301545  83.339.124.10.120.220.67 
324S120457278301545  62.850.936.00.120.221.03 
324S125457278301545  83.350.936.00.120.220.96 
325S125557581301545  83.353.939.30.120.221.14 
325S130557581301545  103.353.939.30.120.221.06 
330S128609096301545  83.369.157.70.120.221.60 
330S135609096301545  103.369.157.70.120.221.48 
335S13060105111301545  83.380.675.90.140.242.11 
335S13560105111301545  103.380.675.90.140.242.02 
336S13060108114301545  83.383.680.60.140.242.23 
336S13560108114301545  103.383.680.60.140.242.14 
340S13070120126301545  83.395.61010.140.242.86 
340S14070120126301545  123.395.61010.140.242.66 
345S13070135141301545  83.31111290.140.243.57 
345S14070135141301545  123.31111290.140.243.37 
348S13570144150301545  103.31201470.140.243.94 
348S14070144150301545  123.31201470.140.243.83 
350S2327015015630154520126103.31261610.140.243.79 
350S2407015015630154520126123.31261610.140.243.62 
355S2357016517130154520140103.31351870.140.244.39 
355S2407016517130154520140123.31351870.140.244.29 
360S2358018018630154520156103.31502240.140.245.31 
360S2458018018630154520156143.81502240.140.245.08 
415S125486068402060  83.359.730.80.140.240.93 
415S130486068402060  83.359.730.80.140.240.83 
418S125507280402060  83.379.346.40.140.241.34 
418S130507280402060  83.379.346.40.140.241.24 
420S128608088402060  83.392.858.60.140.241.72 
420S132608088402060  103.392.858.60.140.241.63 
424S1286096104402060  83.311583.50.140.242.41 
424S1326096104402060  103.311583.50.140.242.32 
425S13060100108402060  83.312291.40.140.242.56 
425S13560100108402060  103.312291.40.140.242.44 
430S13570120128402060  103.31561340.160.263.69 
430S14070120128402060  123.31561340.160.263.54 
435S13570140148402060  103.31911850.160.264.97 
435S14070140148402060  123.31911850.160.264.83 
436S13570144152402060  103.31981970.160.265.25 
436S14070144152402060  123.31981970.160.265.11 
440S14080160168402060  123.32162340.160.266.49 
440S14580160168402060  143.82162340.160.266.33 
445S14080180188402060  123.32512990.160.268.17 
445S14580180188402060  143.82512990.160.268.01 
448S2408019220040206026160123.32723420.160.267.97 
448S2458019220040206026160143.82723420.160.267.81 
450S2408520020840206026168123.32853720.160.268.71 
450S2508520020840206026168143.82853720.160.268.37 
Product Precautions
[Caution on Product Characteristics]  ①Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of heat treatment.
 ②The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see Selection Hints 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.
 ④Products marked with “**” in their catalog numbers, have a thin gap between the keyway and the gear root surface. So, thickness must be considered when using. For details, please see the section “Selection Hints”.

[Caution on Secondary Operations]  ①No secondary operations can be performed on these precision finished gears due to applied carburizing process. For products which are different in specifications, such as bore size, we accept custom-made gear orders and provide a price quote.
  Please click here to Unit Price & Delivery Time.