KHK Gears - Ground Spur Gears (MSGA·MSGB)

Unit of Measure

Items	MSGA1-18 KHK MSGA1-18, Module 1, 18 Tooth, Ground Alloy Steel Spur Gears	MSGA1-20 KHK MSGA1-20, Module 1, 20 Tooth, Ground Alloy Steel Spur Gears	MSGA1-24 KHK MSGA1-24, Module 1, 24 Tooth, Ground Alloy Steel Spur Gears	MSGA1-25 KHK MSGA1-25, Module 1, 25 Tooth, Ground Alloy Steel Spur Gears	MSGA1-30 KHK MSGA1-30, Module 1, 30 Tooth, Ground Alloy Steel Spur Gears
Gear Type	N/A Spur Gears
Construction	N/A Ground Alloy Steel Spur Gears
Bore Type	N/A Ground
Module	N/A 1
No. of Teeth	N/A 18	N/A 20	N/A 24	N/A 25	N/A 30
Shape	N/A S1
Bore Diameter (A)	N/A 0.315 in8 mm	N/A 0.315 in8 mm	N/A 0.394 in10 mm	N/A 0.394 in10 mm	N/A 0.394 in10 mm
Hub Diameter (B)	N/A 0.591 in15 mm	N/A 0.669 in17 mm	N/A 0.787 in20 mm	N/A 0.787 in20 mm	N/A 0.984 in25 mm
Pitch Diameter (C)	N/A 0.709 in18 mm	N/A 0.787 in20 mm	N/A 0.945 in24 mm	N/A 0.984 in25 mm	N/A 1.181 in30 mm
Outer Diameter (D)	N/A 0.787 in20 mm	N/A 0.866 in22 mm	N/A 1.024 in26 mm	N/A 1.063 in27 mm	N/A 1.260 in32 mm
Face Width (E)	N/A 0.394 in10 mm
Hub Width (F)	N/A 0.197 in5 mm
Total Length (G)	N/A 0.591 in15 mm
Web Thickness (H)	N/A
Web O.D. (I)	N/A
Keyway (W x D)	N/A 0.118 x 0.055 in3 x 1.4 mm	N/A 0.118 x 0.055 in3 x 1.4 mm	N/A 0.157 x 0.071 in4 x 1.8 mm	N/A 0.157 x 0.071 in4 x 1.8 mm	N/A 0.157 x 0.071 in4 x 1.8 mm
Bending Strength	N/A 12.1 N·m1.24 kgf·m	N/A 14.2 N·m1.45 kgf·m	N/A 18.5 N·m1.88 kgf·m	N/A 19.6 N·m2 kgf·m	N/A 25.1 N·m2.56 kgf·m
Surface Durability	N/A 6.37 N·m0.65 kgf·m	N/A 8.04 N·m0.82 kgf·m	N/A 12 N·m1.22 kgf·m	N/A 13.1 N·m1.33 kgf·m	N/A 19 N·m1.94 kgf·m
Backlash	N/A 0.0031-0.0063 in0.08-0.16 mm
Precision Grade	N/A JIS grade N5 (JIS B1702-1:1998)
Gear Teeth Type	N/A Standard Full Depth
Pressure Angle	N/A 20 º
Material	N/A SCM415 (AISI 4115) Alloy Steel
Heat Treatment	N/A Carburized
Tooth Hardness	N/A HRC 55-60
Weight	N/A 0.02 kg0.044 lb	N/A 0.027 kg0.060 lb	N/A 0.038 kg0.084 lb	N/A 0.041 kg0.090 lb	N/A 0.065 kg0.143 lb