> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Pololu Ball Caster with 1" Plastic Ball **Type:** Product page · **SKU:** POLOLU-956 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball.html ([markdown](https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball.html.md)) This light ball caster uses a 1" diameter plastic ball. The height of the assembled kit ranges from 1.1" to 1.4". Dowel pins are used to minimize the friction between the ball and the ABS housing. ## Pricing - **Price:** $12.10 (inc GST) — $11.00 AUD, exc GST - **Quantity discounts:** 10+ $10.56 (exc GST) · 25+ $10.23 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 31 and Sep 02. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-956:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/POLOLU-956:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description **Note:** Pololu have released an improved ball caster with 1" plastic ball that Pololu recommend over this older version for applications that are not somehow specifically tied to this item #956 design. The new version is available [**with better plastic rollers**](https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball-and-plastic-rollers.html) or [**with ball bearings**](https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball-and-plastic-rollers-46014.html) and it holds the ball more securely. | [![](https://core-electronics.com.au/attachments/localcontent/0J9799_7402f8193b.jpg)](https://core-electronics.com.au/attachments/localcontent/0J9799_531433e2a92.jpg) | |---| | Pololu 1" ball caster (old version) with included hardware. | This ball caster kit includes a black ABS housing, a 1" diameter plastic ball, three dowel pin rollers, two spacers (1/16" and 1/8" thick), and mounting hardware. The total height of the ball caster, 1.1", can be increased to about 1.3" using the included spacers. The mounting hardware consists three [7/16" #2 screws](https://core-electronics.com.au/machine-screw-2-56-7-16-length-phillips-25-pack.html) and three [1" #2 screws](https://core-electronics.com.au/machine-screw-2-56-1-length-phillips-25-pack.html) (and three [nuts](https://core-electronics.com.au/machine-hex-nut-2-56-25-pack.html)) so you can pick the most appropriate length for your particular application. You can also use your own #2 or M2 screws if your application requires some other length. Note that Pololu's ball casters are designed for small robots; they are not intended to bear more than a few pounds. With more weight than this, friction between the ball and the housing will generally keep it from rolling well. | \| ![](https://core-electronics.com.au/attachments/localcontent/0J480_15166bc01d3.jpg) \| \|---\| | | \| ![](https://core-electronics.com.au/attachments/localcontent/0J481_7167f5362a.jpg) \| \|---\|---\|---\| | |---| **Comparison of Pololu ball casters** | [![](https://core-electronics.com.au/attachments/localcontent/0J6616_206725e12f0.jpg)](https://core-electronics.com.au/attachments/localcontent/0J6616_15804c1ec4a.jpg) | |---| | Pololu ball casters with plastic and metal balls. Ball diameter from left to right: 1", 3/4", 1/2", and 3/8". | | Pololu ball caster ball diameter | height with no spacers | distance between screw holes | weight with no spacers or screws | |---|---|---|---| | [3/8" plastic ball](https://core-electronics.com.au/pololu-ball-caster-with-3-8-plastic-ball.html) | 0.40" | 0.53" | 0.03 oz | | [3/8" metal ball](https://core-electronics.com.au/pololu-ball-caster-with-3-8-metal-ball.html) | 0.40" | 0.53" | 0.14 oz | | [1/2" plastic ball](https://core-electronics.com.au/pololu-ball-caster-with-1-2-plastic-ball.html) | 0.53" | 0.58" | 0.07 oz | | [1/2" metal ball](https://core-electronics.com.au/pololu-ball-caster-with-1-2-metal-ball.html) | 0.53" | 0.58" | 0.32 oz | | [3/4" plastic ball](https://core-electronics.com.au/pololu-ball-caster-with-3-4-plastic-ball.html) | 0.88" | 0.24" | 0.25 oz | | [3/4" metal ball](https://core-electronics.com.au/pololu-ball-caster-with-3-4-metal-ball.html) | 0.82" | 0.61" | 1.05 oz | | [1" plastic ball, ball bearings](https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball-and-plastic-rollers-46014.html) | 1.10" | 0.48" | 0.65 oz | | [1" plastic ball, plastic rollers](https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball-and-plastic-rollers.html) | 1.10" | 0.48" | 0.58 oz | | [1" plastic ball (old version)](https://core-electronics.com.au/pololu-ball-caster-with-1-plastic-ball.html) | 1.10" | 0.70" | 0.36 oz | **People often buy this product together with:** | [![Pololu Ball Caster with 3/8](https://core-electronics.com.au/attachments/localcontent/0J9812_25150e1b56.jpg)](https://core-electronics.com.au/pololu-ball-caster-with-3-8-metal-ball.html) | [Pololu Ball Caster with 3/8" Metal Ball](https://core-electronics.com.au/pololu-ball-caster-with-3-8-metal-ball.html) | |---|---| | [![Pololu Ball Caster with 3/4](https://core-electronics.com.au/attachments/localcontent/0J9804_2259968468.jpg)](https://core-electronics.com.au/pololu-ball-caster-with-3-4-metal-ball.html) | [Pololu Ball Caster with 3/4" Metal Ball](https://core-electronics.com.au/pololu-ball-caster-with-3-4-metal-ball.html) | |---|---| | [![Pololu Micro Metal Gearmotor Bracket Extended Pair](https://core-electronics.com.au/attachments/localcontent/0J1130_2188a9638f.jpg)](https://core-electronics.com.au/pololu-micro-metal-gearmotor-bracket-extended-pair.html) | [Pololu Micro Metal Gearmotor Bracket Extended Pair](https://core-electronics.com.au/pololu-micro-metal-gearmotor-bracket-extended-pair.html) | |---|---| **Dimensions** | Ball diameter: | 1 in | |---|---| | Weight: | 10 g[1](https://core-electronics.com.au/#note1) | **General specifications** | Ball material: | plastic | |---|---| **Notes:** 1Without screws or spacers. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/p/o/pololu_ball_caster_with_1_inch_plastic_ball__pololu_956__00.jpg)