Machine Transmission Precision Injection Plastic Toothed Involute Spiral Helical Spur Gear Wheel


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Machine Transmission Precision Injection Plastic Toothed Involute Spiral Helical Spur Gear Wheel

This precision injection plastic toothed involute spiral helical spur gear wheel is suitable for various applications including motors, electric cars, machinery, toys, agricultural machinery, and cars. It features a hardened tooth surface for enhanced durability and is designed as an external gear. The gear is manufactured using a cut gear method and has a curved gear toothed portion shape. It is made from high-quality stainless steel for excellent strength and corrosion resistance.

Item Customized Injection and machining gears
Process Injection molding, CNC machining
Material Nylon, PA66, NYLON, ABS, PP, PC, PE, POM, PVC, PU, TPR, TPE, TPU, PA, PET, HDPE, PMMA, etc.
Quality Control ISO9001 and ISO14001
Dimension bore tolerances -/+0.01mm
Quality standard AGMA, JIS, DIN
Surface treatment Blackening, plated, anodizing, hard anodizing, etc.
Gear hardness 30 to 60 H.R.C
Size/Color Gears and parts dimensions are according to customer drawings, and colors are customized
Surface treatment Polished or matte surface, painting, texture, vacuum aluminizing, and can be stamped with logo, etc.
Dimensions Tolerance ±0.01mm or more precise
Samples confirmation and approval Samples shipped for confirmation and shipping cost paid by customers
Package Inner clear plastic bag/outside carton/wooden pallets or any other special package as per customer’s requirements
Delivery Time Total takes 2-8 weeks usually
Shipping Usual FEDEX, UPS, DHL, TNT, EMS, or based on customer’s requirement

Production management:

– The workers are trained to inspect the gears and detect any defects during production.
– QC checks 1 piece every 100 pieces in CNC machining to ensure dimensional tolerances.
– Gears are inspected at every step and before shipment, with all inspection records kept for three years.
– Sales will provide pictures of the production process to keep customers informed.
– Quality and customer satisfaction are our top priorities.


1) Inspecting the raw material (IQC)
2) Checking the details before the production line operation
3) Full inspection and routing inspection during mass production (IPQC)
4) Checking the gears after production is finished (FQC)
5) Checking the gears after they are finished (OQC)


– Molds are designed according to customers’ gear drawings.
– Mold drawings are submitted to customers for review and confirmation before production.
– Samples with complete dimensions and cosmetic inspection reports, as well as material certification, are provided.
– Inspection reports of important dimensions and cosmetics are provided for batch parts.

Packing and shipment:

– Gears are carefully packed in PP bags in