Specifications

Model: R188-UG

Dimensions: 1/4x1/2x3/16

Structure: Open-type U-groove ball bearing

Material: Bearing steel

Applications: Fidget spinners, mini spinning toys

Product Features

✔ Precision U-groove design for extended spin times

✔ Smooth rotation with low noise

✔ Open design for easy cleaning and lubrication

✔ Direct replacement for UR188 bearings

✔ Ideal accessory for spinner customization

Product Description

The R188-UG is an open-type U-groove miniature ball bearing (6.35 × 12.7 × 4.762 mm), making it an ideal upgrade for fidget spinners.

It features a precision U-groove raceway design that stabilizes the steel balls and reduces friction, resulting in longer spin times. The inner and outer rings are finely polished to ensure smooth, quiet rotation and excellent wear resistance.

The open design facilitates easy cleaning and lubrication during routine maintenance. Its standard dimensions make it compatible with most common fidget spinners on the market.

Ample stock available with consistent quality. Bulk orders are welcome at highly competitive prices; custom packaging services are also available.

Fidget spinner popular model number: 606, 608, 625, 626,686, 688,696,R188....