Having larger contact ratios compared to the SS spur gears, effective in reducing noise and vibration.
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Unit of Measure
Items
Helical Gears SH

KHK SH2-15L, Module 2, 15 Tooth, Left Hand, Helical Gears
Helical Gears SH

KHK SH2-15R, Module 2, 15 Tooth, Right Hand, Helical Gears
Helical Gears SH

KHK SH2-20L, Module 2, 20 Tooth, Left Hand, Helical Gears
Helical Gears SH

KHK SH2-20R, Module 2, 20 Tooth, Right Hand, Helical Gears
Helical Gears SH

KHK SH2-30L, Module 2, 30 Tooth, Left Hand, Helical Gears
Gear Type N/A Helical Gears
Construction N/A Helical Gears
Bore Type N/A Plain
Tansverse Module N/A 2
No. of Teeth N/A 15 N/A 15 N/A 20 N/A 20 N/A 30
Direction of Helix N/A Left Hand N/A Right Hand N/A Left Hand N/A Right Hand N/A Left Hand
Shape N/A S1
Bore Diameter (A) N/A 0.472 in12 mm
Hub Diameter (B) N/A 0.945 in24 mm N/A 0.945 in24 mm N/A 1.260 in32 mm N/A 1.260 in32 mm N/A 1.969 in50 mm
Pitch Diameter (C) N/A 1.223 in31.06 mm N/A 1.223 in31.06 mm N/A 1.630 in41.41 mm N/A 1.630 in41.41 mm N/A 2.446 in62.12 mm
Outer Diameter (D) N/A 1.380 in35.06 mm N/A 1.380 in35.06 mm N/A 1.788 in45.41 mm N/A 1.788 in45.41 mm N/A 2.603 in66.12 mm
Face Width (E) N/A 0.984 in25 mm
Hub Width (F) N/A 0.394 in10 mm
Total Length (G) N/A 1.378 in35 mm
Set Screw Size N/A
Set Screw Offset (J) N/A
Keyway (W x D) N/A
Bending Strength N/A 43.7 N·m4.46 kgf·m N/A 43.7 N·m4.46 kgf·m N/A 67.1 N·m6.84 kgf·m N/A 67.1 N·m6.84 kgf·m N/A 117 N·m11.9 kgf·m
Surface Durability N/A 2.9 N·m0.30 kgf·m N/A 2.9 N·m0.30 kgf·m N/A 5.85 N·m0.6 kgf·m N/A 5.85 N·m0.6 kgf·m N/A 15.3 N·m1.56 kgf·m
Backlash N/A 0.0047-0.0102 in0.12-0.26 mm N/A 0.0047-0.0102 in0.12-0.26 mm N/A 0.0047-0.0102 in0.12-0.26 mm N/A 0.0047-0.0102 in0.12-0.26 mm N/A 0.0055-0.0118 in0.14-0.30 mm
Precision Grade N/A JIS grade N8 (JIS B1702-1: 1998)
Reference Section of Gear N/A Normal Plane
Gear Teeth Type N/A Standard Full Depth
Transverse Pressure Angle N/A 20 º
Helix Angle N/A 15º
Material N/A S45C
Tooth Hardness N/A less than 194HB
Heat Treatment N/A
Surface Treatment N/A Black oxide coating
Weight N/A 0.15 kg0.331 lb N/A 0.15 kg0.331 lb N/A 0.3 kg0.661 lb N/A 0.3 kg0.661 lb N/A 0.72 kg1.587 lb