Snow Blower Worm Gear Case Assembly With 20 Tooth Copper Gear
This is the complete worm gear case assembly that drives the auger on a two stage snow blower, supplied built up with its 20 tooth copper gear at 19mm ID by 70mm OD by 18mm thick and a 22*149mm worm. It is bought by dealers, rental fleets and importers who would rather swap a whole gear case in the field than strip and rebuild one on a bench. The gear case is where a jammed auger takes its load, and when the gear strips the auger stops turning while the engine keeps running, putting the machine out of service. Supplying the assembly complete removes the guesswork about gear and worm matching, grease fill and shaft alignment, so a machine can go back on route the same day.
- Supplied as a built up assembly, so a field swap replaces a bench rebuild and the machine goes back out the same day
- Gear and 22*149mm worm come matched as a pair, which avoids the rapid re failure you get from mixing a new gear with a worn worm
- All internal gear dimensions published, 19mm ID, 70mm OD, 18mm thickness and 20 teeth, so fitment is confirmed before ordering
- One part number to stock instead of a set of loose gears, bearings and seals
- Ordered alongside the wider snow blower accessory range in one consolidated shipment
- Single piece sample orders accepted so the assembly can be trial fitted before volume
Product Gallery
Specifications
| Part Type | Worm gear case assembly |
|---|---|
| Copper Gear ID | 19mm |
| Copper Gear OD | 70mm |
| Copper Gear Thickness | 18mm |
| Number of Teeth | 20 |
| Worm Size | 22*149mm |
Figures as supplied by the factory. Confirm critical dimensions in writing before ordering.
Application Scenarios
- Dealer workshops turning around customer machines during a snow event with no time for a bench rebuild
- Rental fleets swapping gear cases on machines returned with stripped drives
- Municipal depots holding one spare assembly per machine type through the winter
- Importers adding a spares carton to a container of complete machines
- Mobile service vans carrying a complete assembly rather than a box of loose gear parts
Who It Is For
- Snow equipment dealers and service workshops
- Importers and distributors of snow blower spare parts
- Equipment rental and hire fleets
- Municipal and facility maintenance departments
- Mobile small engine repair operators
Problems It Solves
- A stripped gear case leaves the auger dead while the engine runs, and the machine cannot clear at all
- Rebuilding a gear case on a bench takes hours of skilled labour that a workshop does not have mid season
- Fitting a new gear against a worn worm strips the drive again within weeks
- Ordering loose internals risks a missing seal or bearing holding up the repair
- Long OEM parts lead times take machines out of the fleet for most of the season
Technical Features
- Complete worm gear case assembly for the snow blower auger drive
- Copper gear with 20 teeth, 19mm inner diameter, 70mm outer diameter and 18mm thickness
- Worm sized 22*149mm running against the copper gear
- Part of a complete snow blower accessory range
Materials
- Copper gear inside the assembly
Quality Control
- Incoming inspection on gears, worms and housings before assembly
- In process checks on gear bore, outer diameter, thickness and tooth form
- 100% inspection of assembled gear cases before packing
- Full order inspection before shipment with real time production status shared with the buyer
Customization Options
- OEM and ODM production to buyer drawings and specification
- Buyer branding on the part packaging
- Supply as a complete assembly or as separate gear and worm lines
- Retail box or bulk carton packing to suit the sales channel
How It Compares
Against Replacing only the copper gear
The loose gear is cheaper to ship and store, but the complete assembly is what gets a machine back on route the same day without a bench strip down.
Against Replacing the whole snow blower
A gear case swap keeps an otherwise sound machine in the fleet, which is the difference between a repair cost and a capital cost.
Against Sourcing gear case internals from several suppliers
One assembly from one supplier removes the risk of a missing seal or a mismatched worm holding up the repair.
Use Guide
- Confirm the gear dimensions against 19mm ID, 70mm OD, 18mm thickness and 20 teeth, and the worm against 22*149mm, before ordering
- Stop the engine and disconnect the spark plug lead before removing the old assembly
- Inspect the auger shaft and shear pin holes for wear while the gear case is off
- Fit fresh shear pins rather than reusing bent ones when refitting the auger
- Turn the auger through a full revolution by hand to confirm engagement before restarting the engine
Snow blower parts-worm gear case assembly Buyer Questions
What is the minimum order quantity?
One 20ft container is the standard MOQ, but a single piece sample order is accepted so you can confirm fitment first.
How long is the lead time?
25 to 35 days for a full 40HQ container. A sample order ships in 1 to 7 days.
What gear is inside the assembly?
A copper gear with 20 teeth, 19mm inner diameter, 70mm outer diameter and 18mm thickness, running against a 22*149mm worm.
Can I order the gear and worm separately instead?
Yes. Both are available as individual lines within the same snow blower accessory range.
Can the assembly be supplied under our own brand?
Yes. OEM and ODM production is available, including buyer branding and packaging artwork.
What payment methods do you accept?
Western Union, PayPal or T/T, depending on the order quantity.
Which port do you ship from?
Ningbo or Shanghai, whichever gives the better sailing for your destination.
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View Specifications →Guides That Help You Specify This
How to Choose a Snow Thrower for a Commercial Clearing Route
Clearing width, intake height and drive type decide how long a fixed route takes. Here is how to specify a machine against the route rather than against a brochure.
Read the guide →Snow Blower Spare Parts a Pre Season Stocking List
The parts that actually stop a machine mid route are cheap, small and never in stock when they are needed. Stock them in autumn instead.
Read the guide →Request a Quotation for the Snow blower parts-worm gear case assembly
Send your quantity and destination and we will come back within 24 hours with price, container loading and lead time.