Product Details

WORM GEAR PAIR

High reduction gear
Worm and wheel gear pairings provide large speed reduction ratios with only one gear pairing in a more compact space when compared with other types of gears.  We offer up to a maximum ratio of 100:1 with our products. Another advantage of the Worm and Wheel gear pairings is the low level noise they produce. Some disadvantages are the general low efficiency and the fact that they generate heat.

Advantage of KG’s Worm Gears – “Cold rolled Worm Gears”
1) The hardness of the helicoid surface has been achieved by work hardening when the cold rolling was performed, providing Worm gears with better mechanical properties than machined worms due to fact that the metallic fibrous structure has not been cut.

2) The surface hardness after cold rolling is increased by 1.2 to 1.3 times when compared with the hardness of the original material, and the hardness of the helicoid surface increases to around HB240 to 260.

3) Cold rolled worms are suitable for miniature gear applications since this can be rotated smoothly without damaging the worm wheels made out of POM or other soft materials.

4) Due to the implementation of this cold rolling method, the helicoid surface of KG-Worm (M0.5 to 2.0) comes out with a mirror like finish. Thus, KG-Precision Cold Rolled Worms provide a smooth operation and long term durability.

 

COLD ROLLED -304 STAINLESS STEEL WORMS

Material (ISO) : SUS304
Module : 0.5 – 1.5
Finish of tooh : Cold rolling

304 stainless steel has better corrosion resistance than 303 stainless steel.

COLD ROLLED STEEL WORMS

Material (ISO) : S45C
Module : 0.5 – 2.0
Finish of tooth : Cold rolling

STEEL WORMS

Material (ISO) : S45C
Module : 2.5 – 5.0
Finish of tooth : Cut

POM WORM WHEELS

Material : POM (Blue)
Module : 0.5 – 2.0
Number of teeth : 20 – 100

Blue Polyacetal (Blue POM) gears have a lower water absorption rate and dimensional stability compared with nylon gears, due to this greater material integrity POM has lower chances of bacterial and mold contamination and is therefor approved by regulating authorities in the food industries of the US and Europe.

POM WORM GEARS

Material : POM (White)
Module : 0.5 – 1.5
Number of teeth : 20 – 100

Polyacetal (POM) gears have a lower water absorption rate and better dimensional stability when compared with nylon gears.

POM WORM GEARS with BRASS BUSH BEARING

Material : Poly Acetal (White)
Module : 1.0, 1.5
Number of teeth : 20, 30

Polyacetal (POM) gears with a brass bush bearing, the bore diameter tolerance is H8. This gear was intended for applications that require smaller gap tolerances between the shaft and bore that only plastic gears can’t provide.

WORM GEAR PAIR

BRASS WORM WHEELS

Material : C3604
Module : 0.5
Number of teeth : 20 – 50

ALUMINUM BRONZE WORM WHEELS

Material (JIS) : CAC702
Module : 0.8 – 4.0
Number of teeth : 20 – 50

CAST IRON WORM WHEELS

Material (ISO) : FC200 
Module : 1.0 – 5.0
Number of teeth : 20 – 100