Brass 1:20 0.5 Modulus 20 Teeth Worm Wheel & 4mm Bore Worm Gear Shaft

Description

Features:
Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;
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Made of brass, long time service.
0.5 modulus , 20 teeth worm wheel, 4mm bore worm gear shaft
Worm Shaft Z1=1, turn a round of worm gear teeth, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.
Specifications:
Material: Brass
Color: Yellow
Modulus: 0.5
Weight:16g
Size of worm wheel:
Teeth:20
Teeth Dia:11.2MM
Height:12MM/0.47 Inch
Outer Diameter:11MM/0.43 Inch
Hole Diameter:4MM/0.16 Inch
Step Size:9x7MM/0.35x0.27 Inch ( Dia x H)
Overall Size:12x11x4MM/0.47x0.39x0.12 Inch( H x OD x ID)
Size of worm gear shaft:
Height: 20MM/0.79 Inch
Outer Diameter:9.8MM/0.39 Inch
Inner Diameter:3.17MM/0.12 Inch
Size: 20x9.8x3.17MM/0.79x0.39x0.12 Inch( H x OD x ID)
Package include:
1 x worm wheel
1 x worm gear shaft
2 x screws