To confirm fitment for a Hyundai R220 drive sprocket, match the machine’s exact model and serial-number details with the sprocket’s mounting pattern, tooth profile, dimensions, and undercarriage configuration. Do not order by “R220” alone: machine variations, replacement-part revisions, and prior undercarriage changes can affect compatibility. Before replacement, inspect the sprocket together with the track chain and related running gear, then verify the part against the machine or removed component. This guide explains what to check, how to prepare for replacement, and what information to send a supplier such as Zhonghai Jiuchuan for a fitment review.
This guide is intended for equipment owners, maintenance teams, parts distributors, and procurement staff sourcing a Hyundai R220 drive sprocket. It is useful when replacing a worn sprocket, checking a supplier’s proposed part, or identifying a component when the existing part number is unavailable. It is not a substitute for the machine’s service documentation or a qualified technician’s inspection.
“Hyundai R220” can refer to machines with different configurations or production details, so a model name alone may not establish an exact part match. A machine serial number, existing part number, and photographs of the mounting side can help narrow the selection. If the excavator has previously received replacement track components, verify the installed chain and sprocket together rather than assuming all parts remain in the original configuration.
The drive sprocket transfers rotation from the final-drive assembly to the track chain. Its teeth engage with the chain’s links or bushings to move the track as the excavator travels. Because this is a direct mechanical interface, tooth geometry and mounting fit matter as much as the general machine family.
A sprocket with an incompatible tooth profile or pitch may not engage correctly with the installed chain. A mismatch can contribute to irregular contact, accelerated wear, noise, or problems during operation; the specific cause should be confirmed through inspection. For that reason, record the chain or track assembly details where available, and ask the supplier to check compatibility rather than relying only on visual resemblance.
Start with the machine’s identification plate and available maintenance records. Note the complete model designation, serial number, market or configuration information if known, and any part number printed on the old sprocket or listed in prior orders. If a part number cannot be found, supply photographs of the removed component and its mounting face.
For a practical fitment comparison, record three dimensional values in millimeters: the sprocket’s overall outside diameter, the mounting-hole circle diameter, and the hub or offset depth. Also count the sprocket teeth and the mounting holes, and note the hole sizes if they can be measured reliably. These are comparison points, not universal Hyundai R220 specifications; the correct values must be confirmed for the individual machine and part.
| Fitment item | What to verify | Why it matters |
|---|---|---|
| Machine identification | Full model designation and serial number | Helps distinguish configurations and replacement-part references |
| Tooth engagement | Tooth count, profile, and chain compatibility | Confirms the sprocket can engage the installed track chain |
| Mounting pattern | Hole count, hole size, and hole-circle diameter in mm | Checks alignment with the final-drive mounting face |
| Overall geometry | Outside diameter and hub or offset depth in mm | Helps identify differences in size and mounting position |
| Part references | Existing part number, drawings, or clear photos | Provides additional evidence for supplier cross-checking |
Record the machine details before requesting quotations, and check whether the track chain, idlers, rollers, or other undercarriage parts have been changed. Look for a legible part number on the existing sprocket, but treat it as one reference rather than the only proof of fitment. If the installed sprocket is damaged or heavily worn, use measurements from an undamaged area where possible and provide photographs from more than one angle.
Ask the supplier what material and manufacturing details are available for the proposed part, and whether those details apply to the specific item being quoted. Sprocket designs and material specifications can vary by supplier and application, so do not assume that two visually similar parts have identical composition or service characteristics. Request documentation relevant to your purchasing requirements, and avoid treating general product descriptions as proof of a particular test or certification.
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Compare the sprocket with the track chain and inspect for uneven wear, damage, or unusual contact patterns. If the chain is also due for replacement, discuss the sprocket and chain as a matched undercarriage requirement with your technician or parts supplier. The suitability of replacing one component alone depends on the condition of the other components and the machine’s service guidance.
Send the supplier the machine identification, available part number, photos, and measured dimensions, then request written confirmation of the proposed fitment basis. Ask them to identify any assumptions, such as an unverified production version or a measurement taken from a worn part. Confirm the quotation’s product description, quantity, packaging, lead-time estimate, and shipping terms before placing the order.
Replacement should be performed by qualified personnel using the machine manufacturer’s service procedures and suitable lifting and safety equipment. Secure the machine against movement, follow site lockout practices, and use the correct tools and specified fasteners or tightening procedure. This guide does not provide model-specific torque values or a complete repair procedure; consult the appropriate service information for those details.
Pricing depends on the confirmed specification, order quantity, production or stock status, and delivery destination. Minimum order quantity and lead time are supplier- and order-specific, so request current terms rather than relying on a general estimate. For a useful quotation, provide the quantity, required delivery location, preferred shipping arrangement, and target date alongside the fitment information.
Ask whether the quoted price covers the requested sprocket only or includes any additional components, and confirm how the product will be identified and packed. If the part is being sourced for planned maintenance, allow time for fitment confirmation and shipment before scheduling the repair. A clear specification at the inquiry stage can reduce avoidable rechecks, but it cannot replace final verification against the machine.
Choose a supplier that is willing to discuss the fitment evidence, not just accept a broad model name. Check whether the supplier can review dimensions, photographs, and part references, explain what remains uncertain, and provide a clear product description in the quotation. Zhonghai Jiuchuan can support B2B inquiries for Hyundai R220 drive sprocket sourcing and fitment review when buyers provide the machine details and available component information.
The right Hyundai R220 drive sprocket is the one that matches the specific excavator configuration, mounting interface, tooth engagement, and installed track chain—not simply a part described as “R220.” Confirm the machine serial number and part references, compare the key dimensions in millimeters, and share photographs and chain details with the supplier before ordering. These checks give your maintenance or procurement team a stronger basis for selection while helping identify uncertainties before shipment.
For a fitment inquiry to Zhonghai Jiuchuan, prepare the machine model and serial number, existing part number if available, sprocket photos, tooth and mounting-hole counts, and measured dimensions. Include your required quantity and destination so the supplier can respond with relevant product and delivery information. Final installation and operating checks should follow the machine’s service documentation and be completed by qualified personnel.
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