# 12mm Diameter Linear Bearing Pillow Block - SBR12UU

**Type:** Product page · **SKU:** ADA1183 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/12mm-diameter-slider-platform-sbr12uu.html ([markdown](https://core-electronics.com.au/12mm-diameter-slider-platform-sbr12uu.html.md))

Make your robot or CNC move on Adafruit's Aluminum Slide Rail with this sliding linear ball-bearing platform AKA pillow block. The slider is 39mm x 36mm and has four holes...

## Pricing

- **Price:** $20.70 (inc GST) — $18.82 AUD, exc GST
- **Quantity discounts:** 10+ $18.25 (exc GST) · 50+ $17.87 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## Description

Make your robot or CNC move on Adafruit's [Aluminum Slide Rail](https://core-electronics.com.au/12mm-supported-slide-rail-600mm-long.html) with this sliding linear ball-bearing platform AKA pillow block. The slider is 39mm x 36mm and has four holes tapped for M5 machine screws so you can attach pretty much anything you want. This slider has a plastic interior with small metal ball bearings to make it slide easily and smoothly.
 
 The platform won't come off the railing but it does rotate a bit around so for best stability, use two support rails. Often times, CNC projects will have two of these on opposite sides of the machine body to support a larger platform. You can also have some other support mechanism of your own devising.
 
 Comes as a single bearing platform. You'll want to pick up at least one 12mm railing as well. [Adafruit have a bunch of bearings, supports and platforms that you may want to use with an 8mm based rail system so check out Adafruit's CNC category](https://core-electronics.com.au/#)

## Technical Details

- Load-bearing Mechanism: Hydrostatic Bearing
- Bearing Shell Material: Plastic
 
Dimensions:

- 39mm x 36mm x 27mm / 1.5" x 1.4" x 1"
- Width of Top: 40mm / 1.6"
- Inside Diameter: 12mm / 0.5"
- Outer Diameter: 30mm / 1.2"
- Mounting Hole Diameter: 4mm / 0.16"
- Mounting Hole Distance: 28mm x 26mm / 1.10" x 1.02"
- Weight: 87.4g
 
 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/1/1183-01.jpg)