KHK Gears - Helical Racks (SRHEF)

Unit of Measure

Items	SRHEF1.5-1000R KHK SRHER1.5-1000R, Module 1.5, 200 Tooth, Right Hand Carbon Steel Helical Racks	SRHEF2-1000R KHK SRHEF2-1000R, Module 2, 150 Tooth, Right Hand Carbon Steel Helical Racks	SRHEF3-1000R KHK SRHEF3-1000R, Module 3, 100 Tooth, Right Hand Carbon Steel Helical Racks	SRHEF4-1000R KHK SRHEF4-1000R, Module 4, 75 Tooth, Right Hand Carbon Steel Helical Racks	SRHEF5-1000R KHK SRHEF5-1000R, Module 5, 60 Tooth, Right Hand Carbon Steel Helical Racks
Gear Type	N/A Racks
Construction	N/A Helical Racks
Module	N/A 1.5	N/A 2	N/A 3	N/A 4	N/A 5
No. of teeth	N/A 200	N/A 150	N/A 100	N/A 75	N/A 60
Shape	N/A RFR
Face Width (B)	N/A 0.669 in17 mm	N/A 0.945 in24 mm	N/A 1.142 in29 mm	N/A 1.535 in39 mm	N/A 1.929 in49 mm
Height (C)	N/A 0.669 in17 mm	N/A 0.945 in24 mm	N/A 1.142 in29 mm	N/A 1.535 in39 mm	N/A 1.535 in39 mm
Height to Pitch Line (D)	N/A 0.610 in15.5 mm	N/A 0.866 in22 mm	N/A 1.024 in26 mm	N/A 1.378 in35 mm	N/A 1.339 in34 mm
Total Length (G)	N/A 39.607 in1006.03 mm	N/A 39.705 in1008.51 mm	N/A 39.775 in1010.29 mm	N/A 39.915 in1013.83 mm	N/A 40.054 in1017.38 mm
Bending Strength	N/A 2410 N·m245 kgf·m	N/A 4410 N·m450 kgf·m	N/A 8210 N·m837 kgf·m	N/A 15200 N·m1550 kgf·m	N/A 22500 N·m2300 kgf·m
Surface Durability	N/A 425 N·m43.3 kgf·m	N/A 675 N·m68.8 kgf·m	N/A 1650 N·m168 kgf·m	N/A 2700 N·m275 kgf·m	N/A 4110 N·m419 kgf·m
Precision Grade	N/A KHK R 001 grade 4
Reference Section of Gear	N/A Normal Plane
Gear Teeth Type	N/A Standard Full Depth
Helix Angle	N/A 19° 31’ 41’’ right helix
Pressure Angle	N/A 20 º
Material	N/A S45C
Tooth Hardness	N/A (less than 194HB)
Surface Treatment	N/A Black oxide coating
Weight	N/A 2.06 kg	N/A 4.14 kg	N/A 5.91 kg	N/A 10.7 kg	N/A 13.1 kg