Trackball Ball Sizes and Replacement

By Xah Lee. Date: . Last updated: .

Find Trackball Ball Size

First, find your trackball ball size at Trackball Reviews. For old trackball, check Trackball History

Where to Buy Replacement Ball?

trackballs cFsR5-s250 trackballs 2020-10-29 YSmSr
34 mm ball
Logitech Trackman Marble replacement ball-s

40mm Ball

longwin 40mm crystal ball 04197
longwin 40 mm crystal ball Buy at amazon

“K9 crystal” is a type of high-tech glass. Light weight, and good optical property (example: no bubbles inside).

Note: it may not track well. I have not tried.

50mm Ball

longwin 50mm crystal ball 89352
Longwin 50 mm crystal ball Buy at amazon

55mm Ball

Perixx 55mm Ball Buy at amazon

2.25 inch (57.15mm) and 3 inch (76.2mm) Ball

electric ice rgb trackball
3 inch (76.2mm) or 2.25 inch (57.15mm). Translucent ball, designed for LED modification. (So lights makes the ball glow evenly. Crystal ball have focus effect.)

3 Inch (76.2mm) Ball

RetroArcade translucent ball qwtwq-s590x512 trackball Ball. 3 inch Translucent Buy at amazon

Billiard Ball

8ball SPXbC
2.25 inch (57.15 mm)
Aramith Premier Replacement Pool Ball Buy at amazon
cue ball 6KGS4
2.25 inch. (57.15 mm)
Aramith Super Pro-Cup Pool Cue Ball 2.25 inch, 6 Red Dots Buy at amazon

Crystal/Quartz Ball

Few things to be aware:

purple crystal ball 40mm 24581
glass ball crystal ball
quartz ball 68851-s
quartz ball
Kensington Orbit Trackball scroll ring quartz ball-s
Kensington Orbit Trackball with Scroll Ring. Lighting effect with a quartz ball, more beatiful than can be captured by a photo. [image source reddit ]

Inche to Millimeter Conversion Table