Steel Ball Roller Bearings
Over time, even the smoothest trackball can start to feel less responsive. This replacement ball roller support unit restores that original feel, letting your cursor move freely in every direction with less resistance and less noise.
It installs in seconds with the included removal tool, so you're back to smooth, stable control right away.
Smooth Tracking, Every Direction
Four independently rotating balls follow your movement and reduce contact resistance, so the cursor glides freely at any angle.
Quiet by Design
A balanced, low-friction fit keeps operation smooth and quiet, even during long sessions.
Responsive to the Smallest Movements
Built to track slow, precise motion without catching, so control stays steady no matter how subtle the input.
Easy to Keep Clean
Designed with debris in mind, the unit can be rinsed with water or warm water for simple, ongoing maintenance.
Model: M-TU03SS
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Technical Specifications
Model: M-TU03SS
JAN Code: 4549550439619
Color: Orange
Dimensions: 0.31” x 0.28” x 0.16” inches per unit
Weight: 0.04 oz (1g) per unit
Compatible With: IST, IST PLUS, IST PRO, and HUGE PLUS
Warranty: 1 Year
Good to Know
- Rinse with water or warm water to clean. Avoid running water, since loose parts can be lost during rinsing.
- The included removal tool makes swapping the unit quick, no other tools needed.
- Each pack includes three replacement units, enough for more than one swap.
- Confirm your trackball model is on the compatibility list before ordering.
Steel Ball Bearings FAQ
Find our answers to commonly asked product questions here.
Compatible with trackball mice with swappable bearings including IST, IST PLUS, IST PRO, and HUGE PLUS.
Use the included removal tool to lift out the old unit, then press the new one into place. No other tools needed.
Yes. Rinse with water or warm water. Avoid running water, since it can wash away the small parts.
Each pack includes three ball roller support units and one removal tool.