
چرخ دنده های پلاستیکی #40
#40 roller-chain sprocket family — Select tooth count and material first, then confirm pitch diameter, stock or finished…
View productA reliable plastic component brief combines geometry, mating parts, operating environment, target quantity and the dimensions that matter to assembly. That information determines whether injection molding, machining or a mixed route is appropriate.
Use the catalogue for established product families or the custom engineering path when the part is drawing-specific.

Drawing-specific molded componentsUse this family when the geometry is defined by your assembly rather than by a standard gear or sprocket form.A…
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Plastic gearing for compact mechanical transmissionSelect the tooth form first, then evaluate material, manufacturing route, mating gear, shaft support and backlash together.Plastic…
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Plastic chain-drive sprocketsSelect the chain interface before the material. Chain series, tooth count, bore, hub and shaft layout determine the basic geometry.Sprocket…
Explore familyThe catalogue is intentionally quotation-led rather than retail-led. Product pages focus on what needs to be specified for a usable manufacturing review.

#40 roller-chain sprocket family — Select tooth count and material first, then confirm pitch diameter, stock or finished…
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Drawing-based structural, sliding, locating or motion component — The function, contact surfaces, inserts, fasteners, wall transitions, tolerance stack…
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Sun, planet, ring and related planetary components — Provide system ratio, tooth counts, module, ring/sun/planet relationship, carrier geometry,…
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Drawing-based functional component — Freeze CAD, critical dimensions, resin requirements, annual demand and visible/cosmetic zones before tooling decisions.
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Linear rack with mating pinion — Define module, pressure angle, rack length, mounting holes, pinion teeth, pitch-line alignment,…
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Custom gear components including bevel configurations — Humidity and conditioning, bore fit, mating material, load, speed, lubrication and…
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Straight plastic gear rack — Rack section, module, total length, mounting pattern, mating pinion, moisture environment and required…
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Intersecting-shaft bevel gear pair — Confirm ratio, module, tooth count, pressure angle, shaft angle, bore, mounting distance, mating…
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Engineering contextMaterial selection should begin with the part’s load, environment and interface rather than with a familiar polymer name.Stiffness, creep, impact, moisture, temperature, chemicals, wear,…
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Start from the mechanismA strong RFQ makes technical risk visible before price is discussed.Suppliers need enough information to distinguish a prototype from a repeat-production project…
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Frame the problem correctlyA DFM review should expose geometry that affects tooling, filling, cooling, ejection and inspection before steel is committed.The goal is not to…
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