KHK Gears - Carburized & Hardened Miter Gears (MM)

Unit of Measure

Items	MM2.5-20 KHK MM2.5-20, Module 2.5, 20 Tooth, Carburized Alloy Steel Miter Gears	MM2.5-25 KHK MM2.5-25, Module 2.5, 25 Tooth, Carburized Alloy Steel Miter Gears	MM2.5-30 KHK MM2.5-30, Module 2.5, 30 Tooth, Carburized Alloy Steel Miter Gears	MM2-20 KHK MM2-20, Module 2, 20 Tooth, Carburized Alloy Steel Miter Gears	MM2-25 KHK MM2-25, Module 2, 25 Tooth, Carburized Alloy Steel Miter Gears
Gear Type	N/A Miter Gears
Construction	N/A Carbon Steel Miter Gears
Bore Type	N/A Plain
Gear Ratio	N/A 1
Module	N/A 2.5	N/A 2.5	N/A 2.5	N/A 2	N/A 2
No. of Teeth	N/A 20	N/A 25	N/A 30	N/A 20	N/A 25
Shape	N/A B3
Bore (A)	N/A 0.591 in15 mm	N/A 0.630 in16 mm	N/A 0.630 in16 mm	N/A 0.472 in12 mm	N/A 0.472 in12 mm
Hub Diameter (B)	N/A 1.654 in42 mm	N/A 2.165 in55 mm	N/A 2.362 in60 mm	N/A 1.339 in34 mm	N/A 1.772 in45 mm
Pitch Diameter (C)	N/A 1.969 in50 mm	N/A 2.461 in62.5 mm	N/A 2.953 in75 mm	N/A 1.575 in40 mm	N/A 1.969 in50 mm
Outer Diameter (D)	N/A 2.108 in53.54 mm	N/A 2.600 in66.03 mm	N/A 3.092 in78.54 mm	N/A 1.686 in42.83 mm	N/A 2.080 in52.83 mm
Mounting Distance (E)	N/A 1.772 in45 mm	N/A 1.969 in50 mm	N/A 2.441 in62 mm	N/A 1.378 in35 mm	N/A 1.575 in40 mm
Total Length (F)	N/A 1.137 in28.89 mm	N/A 1.197 in30.41 mm	N/A 1.428 in36.28 mm	N/A 0.876 in22.24 mm	N/A 0.958 in24.33 mm
Hub Width (H)	N/A 0.630 in16 mm	N/A 0.591 in15 mm	N/A 0.669 in17 mm	N/A 0.472 in12 mm	N/A 0.492 in12.5 mm
Length Of Bore (I)	N/A 1.024 in26 mm	N/A 1.063 in27 mm	N/A 1.260 in32 mm	N/A 0.787 in20 mm	N/A 0.827 in21 mm
Face Width (J)	N/A 0.591 in11 mm	N/A 0.630 in15 mm	N/A 0.630 in15 mm	N/A 0.472 in9 mm	N/A 0.472 in12 mm
Holding Surface Diameter (K)	N/A 1.216 in30.89 mm	N/A 1.440 in36.57 mm	N/A 1.873 in47.57 mm	N/A 0.966 in24.54 mm	N/A 1.105 in28.06 mm
Length from Crown to Back	N/A 0.857 in21.77 mm	N/A 0.808 in20.52 mm	N/A 1.034 in26.27 mm	N/A 0.646 in16.41 mm	N/A 0.646 in16.41 mm
Pressure Angle	N/A 20 º
Precision Grade	N/A JIS B 1704:1978 grade 4
Gear Teeth Type	N/A Gleason
Heat Treatment	N/A Carburizing
Bending Strength	N/A 29 N·m2.96 kgf·m	N/A 51.6 N·m5.26 kgf·m	N/A 69.7 N·m7.11 kgf·m	N/A 15.1 N·m1.54 kgf·m	N/A 26.4 N·m2.7 kgf·m
Surface Durability	N/A 19 N·m1.94 kgf·m	N/A 39.7 N·m4.05 kgf·m	N/A 61.5 N·m6.27 kgf·m	N/A 9.74 N·m0.993 kgf·m	N/A 20.1 N·m2.05 kgf·m
Backlash	N/A 0.0028-0.0067 in0.07-0.17 mm	N/A 0.0028-0.0067 in0.07-0.17 mm	N/A 0.0028-0.0067 in0.07-0.17 mm	N/A 0.0024-0.0063 in0.06-0.16 mm	N/A 0.0024-0.0063 in0.06-0.16 mm
Material	N/A SCM415 (AISI 4115) Alloy Steel
Tooth Hardness	N/A HRC 55-60
Surface Treatment	N/A Black oxide coating
Weight	N/A 0.27 kg0.595 lb	N/A 0.47 kg1.036 lb	N/A 0.76 kg1.675 lb	N/A 0.13 kg0.287 lb	N/A 0.25 kg0.551 lb