The wholesale price of the metal ball caster wheel with screw and nut depends on the order quantity, but bulk buyers can get up to 30% off compared to retail rates. Larger quantities always get better pricing because packaging, shipping, and handling costs reduce per unit. If you're planning a bulk project or stocking up for resale, the wholesale option gives you the best overall value.

The minimum order quantity (MOQ) for bulk metal ball caster is 500 units. This MOQ helps us provide stable pricing, ensure quality testing for every batch, and offer faster dispatch times. If you need more than 500 units, we can also prepare custom pricing and lead times depending on your project requirements.

Yes, GST invoices are provided for all orders. Whether you're a retailer, institute, startup, or company, you will receive a proper GST bill that you can use for input tax credit and accounting purposes. Just provide your GST details during checkout or share them with the sales team.

Yes, Metal Ball Caster Wheels are fully compatible with both Arduino and Raspberry Pi–but in a different way than electronic components. Since caster wheels are mechanical support components, they don’t require wiring, libraries, or GPIO pins. They are commonly used along with Arduino/Raspberry Pi–based robots to provide smooth, stable movement.

We offer warranty only on branded products, and the coverage is based on the manufacturer’s policy. Generic modules do not usually come with warranty, but branded motors are covered as per their official guidelines. If you're ordering large quantities and want warranty-backed modules, just let us know and we will recommend the best options.