KHK Gears US
KHK Gears US
259 Elm Place
Mineola, NY 11501
E-Mail: info@khkgears.us
Phone: (516) 248-3850

Website: Clients Website
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Phosphorous bronze worm wheels have excellent wear resistance. Interchangeable with CG Worm Wheels, and enhances strength.
Bronze-Worm-Wheels--BG-
Bronze-Worm-Wheels--BG-_Dim
Unit of Measure
Items Image
BG0.5-20R1
KHK BG0.5-20R1, Module 0.5, 20 Tooth, Single Start, Right Hand, Bronze Worm Wheels 		Image
BG0.5-20R2
KHK BG0.5-20R2, Module 0.5, 20 Tooth, Double Start, Right Hand, Bronze Worm Wheels 		Image
BG0.5-30R1
KHK BG0.5-30R1, Module 0.5, 30 Tooth, Single Start, Right Hand, Bronze Worm Wheels 		Image
BG0.5-30R2
KHK BG0.5-30R2, Module 0.5, 30 Tooth, Double Start, Right Hand, Bronze Worm Wheels 		Image
BG0.5-40R1
KHK BG0.5-40R1, Module 0.5, 40 Tooth, Single Start, Right Hand, Bronze Worm Wheels
Gear Type N/A Worm Gears
Construction N/A Bronze Worm Wheels
Bore Type N/A Plain
Number of Start N/A 1 N/A 2 N/A 1 N/A 2 N/A 1
Nominal Lead Angle N/A 2°36' N/A 5°13' N/A 2°36' N/A 5°13' N/A 2°36'
Hand of Thread N/A Right Hand
Reduction Ratio N/A 20 N/A 10 N/A 30 N/A 15 N/A 40
Module N/A 0.5
No. of teeth N/A 20 N/A 20 N/A 30 N/A 30 N/A 40
Profile Shift Coefficient N/A -0.01 N/A -0.042 N/A -0.015 N/A -0.062 N/A -0.021
Shape N/A HAT
Bore (A) N/A 0.157 in4 mm N/A 0.157 in4 mm N/A 0.157 in4 mm N/A 0.157 in4 mm N/A 0.197 in5 mm
Hub Diameter (B) N/A 0.354 in9 mm N/A 0.354 in9 mm N/A 0.472 in12 mm N/A 0.472 in12 mm N/A 0.591 in15 mm
Pitch Diameter (C) N/A 0.394 in10.01 mm N/A 0.395 in10.04 mm N/A 0.591 in15.02 mm N/A 0.593 in15.06 mm N/A 0.788 in20.02 mm
Throat Diameter (D) N/A
Outer Diameter (D') N/A 0.433 in11 mm N/A 0.433 in11 mm N/A 0.630 in16 mm N/A 0.630 in16 mm N/A 0.827 in21 mm
Mounting Distance (J) N/A 0.413 in10.5 mm N/A 0.413 in10.5 mm N/A 0.512 in13 mm N/A 0.512 in13 mm N/A 0.610 in15.5 mm
Face Width (E) N/A 0.197 in5 mm
Hub Width (F) N/A 0.276 in7 mm
Total Length (G) N/A 0.472 in12 mm
Keyway (W x D) N/A
Set Screw Size N/A N/A M3 N/A M3 N/A M3 N/A M3
Set Screw Offset (L) N/A 0.138 in3.5 mm
Backlash N/A 0-0.0063 in0-0.16 mm
Reference Section of Gear N/A Normal Plane
Gear Teeth Type N/A Standard Full Depth
Helix Angle N/A 2°36' N/A 5°13' N/A 2°36' N/A 5°13' N/A 2°36'
Pressure Angle N/A 20 º
Material N/A CAC502 Bronze (formerly JIS PBC2)
Weight N/A 0.0061 kg0.013 lb N/A 0.0061 kg0.013 lb N/A 0.014 kg0.031 lb N/A 0.014 kg0.031 lb N/A 0.023 kg0.051 lb