Custom plastic sprockets
Machined for your specified chain and shaft connection.
CDS machines plastic sprockets from drawings, specifications or physical samples for new parts, replacements and repeat orders. Drive, driven and idler sprockets can be quoted to your part requirements.
Tooth profile, bore and hub
A sprocket's teeth engage a chain. The drawing or specification identifies the tooth form and count, together with the center features to be machined. Outside diameter alone does not identify the part.
- Tooth profile is specified with the chain system and tooth count.
- Bore and keyway are separately dimensioned machining features.
- Hub has its own diameter, width and profile.
Conceptual end view. Your drawing defines the actual tooth geometry, center features, dimensions and tolerances.
Tooth form and count
Provide the specified chain system, series and pitch with the tooth profile and tooth count. An existing part number or equipment drawing can supply these references.
Bore and keyway
The bore, any keyway and additional holes are separate machining features. Their dimensions, tolerances and positions belong on the part drawing.
Hub and face width
The hub profile, overall width and tooth-face width complete the part definition. Identify separate inserts, bushings or retained hardware when clarifying the component CDS is to machine.
Replacing an existing sprocket
A current drawing gives CDS the manufacturing requirement. If the drawing is missing, an existing sprocket can begin a replacement inquiry.
Document the existing part
CDS offers reverse engineering of existing parts. An old print, equipment record, matching-chain identification or known-good counterpart can help document the sprocket.
Worn teeth and bores may no longer retain their original dimensions. Mark damaged or repaired areas and provide any dimensions already established for the replacement. Missing features or requirements need clarification before manufacture.
Repeat an established part
Use the previous part number, current revision and CDS order reference when available. Supply an updated drawing for any customer-specified changes.
Specify the material for machining
Include the required plastic, exact grade and any controlled brand or filler in the part specification. Identify permitted substitutions separately. CDS confirms the material and machining scope for the quotation.
An old sprocket's color or appearance does not establish its grade. A previous drawing, purchase record or material document is a useful reference when replacing an existing part.
Request a quote for your sprocket
Send the manufacturing information available for a new part, replacement or repeat order. A drawing, specification, dimensioned sketch or existing component can start the inquiry.
Part definition
Part number and revision; drawing or sample availability; specified chain series and pitch, tooth count and profile; bore, keyway, hub, widths and any additional features. Include required tolerances and finish.
Material and records
Specified plastic and grade, required brand or filler, permitted substitutions and required material or inspection documents. For a replacement, include existing records and identify worn or unknown features.
Order details
Quantity by part or revision, repeat needs, requested timing and any previous CDS order reference.
Contact CDS before arranging to send a physical sample.
Start with a physical sample