General Computing

The large, high-density ball and shape of the Pc-Trac  case act as a natural hand rest that mirrors the contour of the hand. Combined with the special "Ambidextrous" feature, the Pc-Trac trackball accommodates both right and left-handed users and hands of all sizes. No need to move your arm or rotate your wrist from side to side.  You will enjoy this desktop trackball's ability to dynamically accelerate across the screen as you turn the ball faster!

Made in America with only the highest quality components and materials, Clearly Superior trackballs (formerly produced by Microspeed Inc.) have a reputation for reliability and performance. The large precision-ground ball and mirror-finished rollers deliver "smooth-as-silk" feel and effortless control

These easy to use, large trackballs are well suited for those with disabilities and physical handicaps.  CST also offers "switch adapted" trackball models that allow the use of external switches for persons with motor control disabilities.



Case Dimensions:

Width 3.75" (9.5cm)

Length 6.75" (17.1cm)

Height 1.75" (5cm)

Height w/ Ball 2.65" (6.75cm)

Ball Size: 2.25"

Ball Type: high-density phenolic

Bearings: Duponttm Delrintm with Teflon

Shafts: Nickel plated alloy

Construction: High Impact ABS



Case Dimensions:

Width: 2" (50mm)

Length: 2.75" (71mm)

Height: 1.20" (30mm)

Ball Size: .75" (19mm)


Assumptions: All data from manufacturers specifications

Switch Type: Subminiature microswitch

Switch Model:Panasonic G75EVQ

Service life:Exceeds 5,000,000 operations

Hub Material: Brass Alloy

Shaft Material: V-Groove Brass Alloy

Drive Ratio: 5.2 - 1

Bearing Type: Bushing

Bearing Material: Dupont TM Delrin TM

Bearing Maximum Rated Load: 2 Ib. operating, 5 Ib. static

Lubrication: PEFE I PTFE base

Estimated Bearing life: Exceeds 10 million revolutions

MTBF: 17,000 hours (Calculation based on 100% duty cycle at 12 RPM average use speed)


USB Models

Windows 7, Windows Vista

Windows XP,  Windows 2000,

Windows 98SE and ME, most

versions of Linux, MAC OS9 and

later and any other USB 1.1/HID 1.0

compatible operating system such as Sun Solaristm.

Serial Models

Windowstm 98SE, ME, 2000, and

XP as well as some versions of Linux