KHK Gears - Plastic Racks (PR·PRF)

Unit of Measure

Items	PR1.5-1000 KHK PR1.5-1000, Module 1.5, 212 Tooth, Nylon Gear Racks	PR1.5-500 KHK PR1.5-500, Module 1.5, 105 Tooth, Nylon Gear Racks	PR1-500 KHK PR1-500, Module 1, 159 Tooth, Nylon Gear Racks	PR2.5-1000 KHK PR2.5-1000, Module 2.5, 127 Tooth, Nylon Gear Racks	PR2.5-500 KHK PR2.5-500, Module 2.5, 63 Tooth, Nylon Gear Racks
Gear Type	N/A Racks
Construction	N/A Acetal Gear Racks
Module	N/A 1.5	N/A 1.5	N/A 1	N/A 2.5	N/A 2.5
Effective Number of Teeth	N/A 212	N/A 105	N/A 159	N/A 127	N/A 63
Shape	N/A R1
Total Length Rack (A)	N/A 39.764 in1010 mm	N/A 19.882 in505 mm	N/A 19.882 in505 mm	N/A 39.764 in1010 mm	N/A 19.882 in505 mm
Face Width (B)	N/A 0.591 in15 mm	N/A 0.591 in15 mm	N/A 0.394 in10 mm	N/A 0.984 in25 mm	N/A 0.984 in25 mm
Height (C)	N/A 0.787 in20 mm	N/A 0.787 in20 mm	N/A 0.472 in12 mm	N/A 1.181 in30 mm	N/A 1.181 in30 mm
Height to Pitch Line (D)	N/A 0.728 in18.5 mm	N/A 0.728 in18.5 mm	N/A 0.433 in11 mm	N/A 1.083 in27.5 mm	N/A 1.083 in27.5 mm
Mounting Hole	N/A No
Bending Strength	N/A 209 N·m21.3 kgf·m	N/A 209 N·m21.3 kgf·m	N/A 92.8 N·m9.46 kgf·m	N/A 580 N·m59.2 kgf·m	N/A 580 N·m59.2 kgf·m
Backlash	N/A 0-0.0083 in0-0.21 mm	N/A 0-0.0083 in0-0.21 mm	N/A 0-0.0079 in0-0.20 mm	N/A 0-0.0094 in0-0.24 mm	N/A 0-0.0094 in0-0.24 mm
Precision Grade	N/A KHK R 001 grade 5
Gear Teeth Type	N/A Standard Full Depth
Pressure Angle	N/A 20 º
Material	N/A MC901 Nylon
Tooth Hardness	N/A (115-120HRR)
Weight	N/A 0.33 kg0.728 lb	N/A 0.16 kg0.353 lb	N/A 0.064 kg0.141 lb	N/A 0.81 kg1.786 lb	N/A 0.4 kg0.882 lb