High Strength Worm Shaft for Worm Gear Speed Reducers

Qimao Metal Manufacturer's High Strength Worm Shaft for Worm Gear Speed Reducers can be with bronze or plastic worm wheels. Diameters from 12 mm up to 120 mm. Modules from 1 to 8. Single or double start threads. And we can add keyways, snap ring grooves, or drilled ends. No fancy packaging or exaggerated claims. Just a worm shaft that stays straight and keeps running when your reducer is under full load.

1. Qimao Metal Manufacturer produce the Worm Shaft for Worm Gear Speed Reducers is ultrasonically tested for internal cracks before cutting.

2. Then we turn the shaft, cut the thread using a hob or a CNC lathe, and send it for heat treatment. Carburizing depth is 0.8 to 1.5 mm depending on module size.

3. After hardening, we grind the bearing journals and the thread profile to achieve accuracy class 6 or 7 per DIN 3975.

4. Surface roughness on the tooth flanks is Ra 0.4 µm or better. The ends are center-drilled for easy mounting.

5. We also deburr all edges by hand — small touch, but it saves your seal from getting cut during assembly.

Every shaft comes with a hardness test report and a dimensional inspection sheet. What you get is a reliable worm shaft that fits your worm gear speed reducer without forcing or shimming.

Product Parameter (Specification)

Product Feature

1. Made High Strength Worm Shaft for Worm Gear Speed Reducers from 42CrMo4 or 20CrMnTi alloy steel or customized. Gives you core toughness to resist shock loads inside a speed reducer.

2. Tooth flanks case hardened to 58–62 HRC, core stays at 30–35 HRC. Prevents pitting and bending fatigue.

3. Threads are CNC ground after hardening. Keeps lead angle accurate and flanks smooth. Lowers friction and heat.

4. Straightness held to 0.03 mm per 300 mm. Checked with a dial indicator before packing. Bent shafts don't ship.

5. Single-start or multi-start threads available. Left-hand or right-hand also possible. Matches your reducer design.

Application

1. Industrial gear reducers for conveyors – Prevents thread wear under moderate loads and frequent starts. Keeps the belt moving without sudden jams.

2. Lifts and hoisting equipment – Self-locking feature holds load when power is off. The product High Strength Worm Shaft for Worm Gear Speed Reducers hardened threads resist shock from sudden stops.

3. Automated packing machines – Ground threads reduce heat buildup inside the gearbox. Means longer oil life and fewer maintenance stops.

4. Food processing conveyors – Stainless version resists rust and cleaning chemicals. Smooth flanks help flush out debris easily.

5. Solar tracker actuators – Hardened or stainless shaft survives rain, dust, and temperature swings. Turns panels smoothly without seizing up.

Why Choose Us

For all products by us Qimao Metal Manufacturer we keep raw material, also the item High Strength Worm Shaft for Worm Gear Speed Reducers. For six common diameters and three steel grades in stock. So typical orders ship in 10–12 working days. No mold fees for simple end machining. And we don’t charge extra for custom lengths unless you need special drilling.

we still allow manual checks. Each worm shaft is visually inspected under good lighting. We also run sample tooth contact checks with a master gear before shipping. If the contact pattern looks off, the batch gets reworked.

For bigger orders, we can apply anti-rust oil and shrink-wrap each shaft individually. You can also request laser marking with your part number or our heat code for traceability. We don’t hide test reports or charge for basic certificates.