PRODUCT PAGE / YZEFY SPROCKETS
Custom chain sprockets
Custom chain sprockets are used when a standard catalogue part does not match the chain, shaft, space or duty of the equipment. The custom work may involve a special tooth count, non-standard bore, keyway, hub, plate, mounting pattern, material or surface treatment. It may also be a replacement for a legacy part that is no longer available.

Product introduction
YZEFY Sprockets manufactures custom roller chain sprockets from drawings, samples, worn parts and defined specifications. We review the chain standard and the mounting interface before confirming the production route. A clear chain designation and dimensioned drawing reduce revisions during quotation.
Main uses
- Custom sprockets for OEM machinery and new equipment
- Replacement of obsolete or non-catalogue chain sprockets
- Custom roller chain sprockets for conveyors and agricultural machinery
- Modified bore, keyway, hub and mounting arrangements
- Small or repeat production runs subject to drawing and quantity review
Suitable industries
Packaging, agriculture, material handling, food processing, woodworking, mining, building materials and general machine manufacturing often require custom chain sprockets. The product is defined by the engineering interface, so application information is as important as the part name.
Core advantages
- Drawing and sample based production for non-standard chain sprockets
- Engineering review of tooth profile, pitch, bore, hub and chain line
- Material and heat treatment choices tied to load and environment
- Support for prototype, replacement and repeat OEM requirements
Product features
- Materials: C45 and 40Cr alloy steel are common starting points. Stainless steel, cast iron, aluminum, nylon or acetal can be considered when the application calls for them.
- Machining: The route may include CNC turning, gear hobbing or milling, bore and keyway machining, hub work, mounting holes, deburring and heat treatment.
- Dimensional accuracy: The drawing can define tooth profile, pitch, bore, keyway, hub, concentricity, runout and other critical dimensions. Inspection is planned against the agreed specification.
- Surface treatment: Induction hardening, carburizing or a specified protective finish can be reviewed for wear, load or corrosion requirements.
- Standards: ANSI, DIN, ISO, BS and JIS chain standards can be used as the reference for custom tooth engagement. The chain series must be stated.
- Custom capability: Tooth count, pitch, sprocket diameter, bore, keyway, hub, split or weld-on structure, material, treatment, marking and packaging can be defined.
Applications
- Conveyor systems: Custom drive, return and guide sprockets for unique chain layouts
- Packaging machinery: Modified bores, hubs and tooth counts in compact machine frames
- Agricultural equipment: Replacement and custom sprockets for legacy or seasonal equipment
- Food processing equipment: Stainless steel or protected designs reviewed for cleaning conditions
- OEM machinery: Drawing-controlled parts for new and repeat machine production
- MRO replacement: Custom parts made from worn sprockets, samples or field measurements
Selection guide
- Send the chain information. Include standard, series, pitch, roller diameter, strand count and any chain marking.
- Send the drawing or sample. A controlled drawing is preferred. A worn part, photos and key measurements can start the review when no drawing exists.
- Define the shaft interface. Provide bore, keyway, hub, shoulder, bushing, bolt pattern and chain line details.
- Describe the duty. State speed, load, shock, operating hours, lubrication, dust, moisture, temperature and cleaning conditions.
- Set the quality requirements. Identify critical tolerances, hardness, inspection reports, marking, packaging and any approval sample.
- Confirm quantity and repeat needs. Prototype, replacement and repeat OEM orders may require different process and inspection arrangements.
Why choose YZEFY Sprockets
- Manufacturing capability: We can combine CAD or drawing review with CNC machining, tooth cutting, keyway work, heat treatment and final inspection.
- Custom engineering support: We check the chain and mounting interface before production so a custom sprocket is based on the real equipment requirement.
- Quality control: Critical dimensions, tooth profile, bore, keyway, hub, concentricity, runout and hardness can be defined and inspected by order.
- Export experience: We coordinate drawing revisions, sample approval, production details, packing and shipping information for international custom orders.
FAQ
Can you manufacture custom sprockets from drawings?
Yes. Send a 2D drawing, 3D model or specification with the chain standard, tooth profile, bore, keyway, hub, material and tolerances. A drawing review is completed before the quotation is finalized.
Can you make a custom sprocket without a drawing?
A sample, worn part or clear photos with key dimensions can start the review. The chain designation, tooth count, pitch, bore, keyway and hub details still need to be confirmed before production.
What affects custom sprocket price?
Material, size, tooth cutting, bore and hub machining, heat treatment, surface finish, inspection, quantity, packing and drawing complexity all affect the quotation.
Can you produce custom roller chain sprockets for OEM equipment?
Yes. OEM requirements can be reviewed from a controlled drawing and production quantity. Revision control, inspection points, marking and packaging should be defined for repeat orders.
How do you handle a worn sprocket sample?
The sample is checked together with the chain, shaft and mounting details. Wear can remove the original tooth shape or change the bore, so the replacement should not be copied from one measurement alone.
Can you provide CAD or production drawings?
Drawing format and level of detail can be discussed at quotation. If a customer supplies a controlled drawing, that drawing and its revision should remain the reference for production.
Request a quote
Send your drawing, sample photos or worn part information, together with chain standard, teeth, bore, keyway, hub, material, treatment, quantity and application. Use Send Your Drawing for a custom review or Request a Quote for a defined specification.
