Start with the complete drive
A chain and sprocket set should be specified as a system. Record the driver, driven equipment, speed, load, starts, reversals, available center distance, shaft arrangement, and enclosure. A chain size copied from an old link may not be enough when the sprockets are worn, alignment has changed, or the duty has increased.
- Identify chain pitch, roller width, strand count, and attachment pattern.
- Record sprocket tooth count, bore, keyway, hub style, and shaft position.
- Describe lubrication, contamination, corrosion, and maintenance access.
Check the interfaces
Measure both sprockets and shafts, not only the chain. Confirm whether the sprocket is finished bore, pilot bore, taper-lock, QD, welded hub, split, or another arrangement. Photograph markings and the installed orientation. For conveying chains, include the attachment spacing and the carried product.
| Chain data | Pitch, roller, inner width, plate, strand, attachment, and length |
|---|---|
| Sprocket data | Teeth, bore, key, hub, pitch diameter constraint, and material |
| Duty data | Power, speed, load variation, starts, shock, alignment, and hours |
Prepare the RFQ
Send the measurements, photographs, machine function, quantity, destination, and required documentation. For a new design, provide the motor, speed, driven load, center distance, layout, and preferred maintenance arrangement.
- Chain and sprocket dimensions
- Operating speed, load, alignment, and environment
- Quantity, destination, and required inspection records