Product Overview
A Plastic Gear Shaft combines a molded gear section and a rotating shaft in one component. Typical uses include window lift motors, seat adjusters, door locks, HVAC actuators, and small gearboxes. In these compact electromechanical drives, the part transmits torque and locates the shaft within limited installation space.
Key Advantages
One-Piece Gear and Shaft Alignment
The gear teeth and shaft datums come from the same tool reference rather than joined separate parts. This removes joint play and reduces concentricity stack-up inside a narrow motor housing, helping the tooth mesh stay centered during rotation.
Integrated Journal and Retention Features
Bearing journals, axial shoulders, and a positive drive feature can all be formed in the same component. Compact actuators can then avoid separate collars or adapters while keeping the gear correctly positioned relative to the shaft supports.
Stable Torque Transfer Through Reversal
The shaft interface is designed for the mechanism's direction changes and peak torque. A correctly positioned D-flat, spline, or insert keeps the gear section from shifting during motor start, stop, or reversal.
Product Parameters
|
Parameter |
Value |
|
Product Name |
Plastic Gear Shaft |
|
Available Materials |
POM, PA6 |
|
Gear Precision Grade |
Grade 8 – 11 |
|
Typical Shaft Length Range |
15mm – 80mm |
|
MOQ |
10,000 pcs (mixed models/colors allowed) |
Customization Capabilities
The mating gear and required center distance define the gear section. Bearing seats and the output connection define the shaft. Both are controlled in one coordinated part drawing so tooth geometry and shaft datums remain aligned.
Stepped journals, one positive drive interface, and an axial retaining feature can be added to the shaft. Resin or insert selection depends on journal load, temperature, and lubricant exposure.
Quality Control
First-piece inspection checks gear-to-shaft concentricity and journal fit. During production, visual checks focus on tooth edges and shaft features, removing molding defects that could disturb rotation.
For final verification, the part is mounted with its mating gear or a shaft fixture. The check covers smooth rotation, stable mesh, and the required locating fit.
FAQ
Q: What is the minimum order quantity?
A: The standard MOQ is 10,000 pieces. Approved colors or models may be combined within one order.
Q: Which trade and payment terms are available?
A: EXW and FOB are available. Full prepayment is the standard payment term, and payment is accepted in USD, EUR, CNY, GBP, AUD, CAD, KRW, or RUB.
Q: What technical files are required for quotation?
A: Provide a 2D drawing and 3D model showing tooth geometry, shaft datums, tolerances, mating gear data, operating speed, torque, and installation constraints. A physical sample can be used if the original drawing is unavailable.
Q: Can a metal pin or sleeve be integrated into the gear shaft?
A: Yes. A metal pin, sleeve, or bushing can be insert-molded or assembled after molding. Pull-out force, rotational torque, corrosion protection, and insert-position tolerance are defined before tooling approval.
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