This ball caster uses a 1″ diameter plastic ball and has an overall height of 1.1″ (29 mm). The two-part housing snaps together to securely enclose the ball and three plastic rollers that reduce the friction between the ball and the ABS housing. The base piece of the housing has holes for three #4 or M3 screws (not included).
Overview
This ball caster kit includes a two-part black ABS housing, a 1″ diameter POM (also known as acetal or by the brand name Delrin) plastic ball, and three ABS rollers. When assembled, the ball caster is capable of rolling in any direction with low friction, making it suitable for use as a third contact point for wheeled, differential-drive robots weighing up to around ten pounds.
The base piece of the housing has holes for three #4 or M3 mounting screws (not included) and slots for the three rollers. The second part of the housing snaps into the base piece to secure the ball and rollers. The assembled ball caster has an overall height of 1.1″ (29 mm).
This dimension diagram is also available as a downloadable PDF (133k pdf).
Ball Caster Comparison Table
| Pololu ball caster ball diameter | height with no spacers | distance between screw holes | weight with no spacers or screws |
|---|---|---|---|
| 3/8″ plastic-ball | 0.40″ | 0.53″ | 0.03 oz |
| 3/8″ metal-ball | 0.40″ | 0.53″ | 0.14 oz |
| 1/2″ plastic-ball | 0.53″ | 0.58″ | 0.07 oz |
| 1/2″ metal-ball | 0.53″ | 0.58″ | 0.32 oz |
| 3/4″ plastic-ball | 0.91″ | 0.24″ | 0.25 oz |
| 3/4″ metal-ball | 0.83″ | 0.61″ | 1.05 oz |
| 1″ plastic-ball with rollers | 1.10″ | 0.48″ | 0.58 oz |
Fast Shipping & Professional Packing
We offer a broad range of shipping options owing to our long-running partnerships with UPS, FedEx and DHL. Our warehouse personnel are expertly trained and will wrap your items according to our exact and precise specifications. Your products will be subjected to an exhaustive examination before they will be properly packaged prior to being delivered. Everyday, we send to thousands of clients in multiple countries. This shows our commitment to be the largest online retailer in the world. We have distribution centers as well as warehouses in Europe as well as the USA.
Note: Orders that contain more than one product will be assigned a distinct processing time dependent on the particular item.
We will inspect each and every one of the products before they are shipped. The majority of orders are shipped within 48 hours. The delivery time will be between 3-7 working days.
Returns
The inventory is always changing, and not fully managed by us because of the involvement of many parties including the factory and our warehouse. The stock can change at any moment. Please be aware that it's possible for your order to be out of stock after you have made the order.
Our policy is valid for a period of 30 days. If 30 days have passed in the past since you purchased and we are unable to offer you a return or exchange.
To be eligible for a refund, your product must be unopened and in the same condition as you received it in. It must also be returned in its original packaging.
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