Product Overview
The Plastic Bevel Gear Set is a matched small-and-large gear pair used to transmit motor motion through a 90-degree change in shaft direction. It is used in automotive sunroof drives, seat adjusters, and compact mechanisms that require a 3:1 speed reduction between intersecting shafts.
Core Advantages
12/36-Tooth 3:1 Transmission
The small gear has 12 teeth and the large gear has 36 teeth, producing the specified 3:1 ratio. A motor driving the small gear turns the output shaft at reduced speed and redirects the motion through 90 degrees.
Matched White POM Pair
Both straight-tooth gears are produced as a matched pair from the same tool and use white POM. The approved installation uses a 3 mm gap between the gears, allowing tooth contact and alignment to be inspected clearly during assembly.
Defined Shaft and Envelope Dimensions
The small gear has a 6 mm bore and 15 mm outer diameter; the large gear has a 12 mm bore and 20 mm outer diameter. These dimensions define the available shaft interfaces and installation envelope for compact drive mechanisms.
Technical Data Table
|
Parameter |
Value |
|
Small Gear Teeth |
12 teeth |
|
Large Gear Teeth |
36 teeth |
|
Gear Ratio |
3:1 |
|
Small Gear Hole |
6 mm |
|
Large Gear Hole |
12 mm |
Customization Capabilities
Tooth and Ratio Design
Available changes include tooth count, gear ratio, module, tooth width, pressure-angle requirement, center-distance condition, and rotation direction based on the target transmission.
Bore and Shaft Interface
The 6 mm and 12 mm standard bores can be evaluated against alternative round bores, flats, keyways, splines, hubs, shaft fits, and retaining features.
Material and Part Identification
The standard set uses white POM. Material grade, molded color, inspection color, pair marking, and part identification may be specified for the application.
Quality Control
Gear Geometry Inspection
Tooth count, tooth profile, outer diameter, bore diameter, runout, hub position, and visible molding defects are inspected against the drawing for both gears.
Matched-Mesh Verification
The small and large gears are checked together at the specified 3 mm mounted gap. Rotation, contact pattern, backlash, interference, and abnormal noise are reviewed on the matched pair rather than on each gear separately.
Bore and Pair Identification Control
The 6 mm and 12 mm bores, hub position, part marking, and matched-pair identity are checked before packing so the small and large gears remain traceable as one transmission set.
FAQ
Q: How long does custom sample development take?
A: Custom sample development takes 50 days after the gear geometry, material, shaft interface, and test conditions are confirmed.
Q: What is the MOQ for a Plastic Bevel Gear Set?
A: The MOQ is 10,000 sets. Confirmed variants may be combined within one production program.
Q: What warranty applies to tooth wear?
A: The gear set carries a two-year warranty against tooth wear.
Q: How is each gear set packed?
A: The matched pair is packed in a plastic bag with a desiccant packet.
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