Sprockets for Sale — Stocked Options for NZ Industry
Renold carries a comprehensive range of sprockets for sale in both British Standard and American Standard configurations, stocked locally in Auckland for fast dispatch across New Zealand.
Our machined sprocket range includes:
- Simplex, Duplex and Triplex Configurations: Designed to suit standard transmission chain drives, with pitch sizes available up to 2 inches.
- Bore Options: To match your shaft setup. Finished bore (machined to your exact shaft diameter), taper lock (for quick removal and repositioning), and pilot bore (for on-site boring to size).
- Tooth Count and Pitch Diameter: These must be matched to your chain pitch and drive ratio. Our engineering team can confirm tooth count and pitch diameter for your application before you order.
- Material Options: Including precision-machined quality steel as standard, with stainless steel sprockets in 304-grade and 316-grade available for corrosive, washdown, or food-grade environments.
All Renold sprockets in NZ are engineered for precise tooth engagement with our transmission chain range, including the Renold Sovereign and Renold Synergy series, for longer wear life and less maintenance.
Explore our full range of industrial roller chain options to find the matched chain for your sprocket selection.
Custom Sprockets Manufacturing: Engineered for Specialist Applications
Off-the-shelf sprockets don't suit every drive. As an established sprockets manufacturing operation with in-house design, CAD, and machining capability, Renold produces precision custom sprockets for demanding or non-standard applications across New Zealand industry.
Our custom sprocket manufacturing capability includes:
- Necklace sprockets for turning large drums or tables without dismounting the shaft.
- Combination sprockets (multiple pitch sizes and tooth counts on a single hub) for complex multi-strand drives.
- Split sprockets and segmental sprockets where shaft removal isn't practical during installation or replacement. These are particularly valuable in retrofit applications or when maintenance access is restricted.
- Stainless steel sprockets in 304-grade and 316-grade for food and beverage processing, water treatment, and chemical handling environments where carbon steel would corrode and fail.
- Non-standard materials for high-temperature or chemically aggressive conditions, specified case-by-case with our engineering team.
Our engineers work directly with mechanical engineers, maintenance teams, and procurement professionals from initial CAD design through to finished, tested component. Lead times vary by complexity. Contact our Auckland team for a quote and indicative timeline.
Matching Chains and Sprockets NZ
Running mismatched chains and sprockets in NZ is one of the most common causes of premature drive failure. When chain pitch doesn't align precisely with sprocket tooth geometry, engagement becomes uneven. The result is accelerated chain elongation, tooth wear, increased noise, and unexpected downtime.
Renold's approach is to supply matched chains and sprockets NZ operations can rely on. Our sprockets are designed specifically for use with Renold transmission chain, which means tooth profile, pitch, and tolerances are engineered together.
When chain elongation reaches approximately 2% over its nominal pitch length, both the chain and sprockets should be replaced at the same time. Fitting a new chain to worn sprocket teeth accelerates re-wear almost immediately. Renold's free chain wear guides let you check elongation on-site without removing the chain from the drive, so you can plan replacements before a breakdown occurs.
Sprocket Accessories
Beyond sprockets themselves, Renold supplies accessories that help you get more life from your drive system.
- Chain wear guides let you measure chain elongation on-site without removing the chain, helping maintenance teams plan sprocket and chain replacements around scheduled downtime rather than reacting to failures.
- Chain tensioners are available in compact configurations for applications where space limitations prevent the installation of conventional tensioners.
- Chain pin extractors for field servicing and link removal.
Local Support, Fast Dispatch from Auckland
Renold's Auckland facility serves as the hub for sprockets in NZ, from standard stocked items to custom-machined components. Our local team means you're not waiting on international freight for standard stock, and our engineers are available to assist with application review, chain selector advice, and custom sprocket specifications.
We support buyers across New Zealand's key industrial sectors: food and beverage, timber and forestry, mining and quarrying, water treatment, agriculture, and general manufacturing. Whether you're a project engineer specifying a new drive system or a maintenance manager sourcing a replacement part urgently, our team can turn around a response quickly.
Call +64 9 828 5018 or use the contact form below to speak with our Auckland engineering team.
Frequently Asked Questions
How do I choose the right sprocket for my chain drive?
Correct sprocket selection depends on four key factors: chain pitch (which must match the sprocket pitch exactly), the number of teeth (which determines your drive ratio and chain speed), bore type (finished, taper lock, or pilot, depending on your shaft and maintenance requirements), and material (carbon steel for standard environments, stainless for washdown or corrosive conditions). Our Auckland engineering team can review your application details and confirm the right specification. Contact us before ordering if you're unsure.
When should I replace my sprockets?
Replace sprockets and chain together when the chain reaches approximately 2% elongation over its nominal pitch length. Running a new chain on worn sprocket teeth causes the chain to wear more quickly, significantly shortening its service life. Renold's free chain wear guides make it easy to check elongation without removing the chain from the drive.
Can Renold manufacture custom sprockets in NZ for non-standard applications?
Yes. Renold operates in-house CAD and machining capability at our Auckland facility, and we produce custom sprockets for specialist applications, including necklace sprockets, split/segmental sprockets, combination sprockets, and sprockets in stainless steel or non-standard materials. Contact our team with your application details and drawings for a quote.
How long does it take to manufacture a custom sprocket?
Lead times depend on complexity, material, and current workshop scheduling. Standard custom machining is typically completed faster than sourcing overseas-manufactured equivalents, and our team will give you an accurate, indicative timeline at the quoting stage. For urgent breakdowns, contact us directly to discuss options.
Does Renold deliver sprockets throughout New Zealand?
Yes, Renold dispatches from our Auckland facility to customers throughout New Zealand. Standard stocked items are available for fast dispatch, while custom-manufactured sprockets ship once machining is complete. Contact our team to confirm availability and lead times for your specific requirements.
Looking for More Than Sprockets in NZ?
Renold New Zealand is one of the country's most established providers of transmission solutions. Beyond our sprocket range, we supply:
- Industrial roller chain options for power transmission drives
- An engineered conveyor chain range for material handling systems
- Leaf chain product support for counterbalance applications
- Gearbox and torque transmission products where high-torque drive reduction is required
We also serve New Zealand's forestry and processing sector. See our timber chain sector applications page for industry-specific solutions.
Contact our Auckland team at +64 9 828 5018 or submit an enquiry online for application support, custom quotes, and availability of stocked items.
