50 Mm Trackball Unit
The TBL50 series is a ruggedised professional trackball. The unit has been specially designed for harsh industrial environment applications : the self-adjusting PTFE seal of the trackerball guarantees an IP65 protection grade. This trackball has a large diameter ball, which make this unit the ideal solution for all applications where accurate pointer control is required. Carrier plates and housing are metal (aluminium and steel).
Panel mount (incl. alu carrier plate, electronics and cable)
Intended for front panel mounting into users’ cabinet or panel with a minimum of required space and mounting depth. Operation of the trackerball is possible at all angles, from horizontal to vertical mounting position. The electronic parts on the backside are protected by a metal cover. A neoprene seal which can be fitted between the carrier and the customers panel, is delivered with each unit.
Dimensions / weight : 108 x 192 x 45 mm / 0,6 kg
Enclosed
The TBL50S1 combines a large diameter ball and a steel enclosure. The “dots” on the front are not functional but contribute to the stylish look of the product.
Dimensions / weight : 118 x 204 x 60 mm / 1 kg
Features
Sealing : IP65 static
Enclosure : steel, pearl white finish
Carrier plate : aluminium
Ball diameter : 50,8 mm
Ball material : phenolic resin, black colour
Resolution : 155 pulses per ball revolution
Tracking force : nom. 50 grams
Lifetime : >= 2 million ball revolutions
Cable : shielded, straight 1,6 m long
Operating temperature : -10°C to +60°C
Storage temperature : -25°C to +85°C
Switches : tactile, 1,4mm travel
TBL50
NSI bvba • Kapittelstraat 18 • 3740 Bilzen, Belgium • t. +32 89 51 90 00 • info@nsi-be.com • www.nsi-be.com 1/2
TRACKBALL UNITS
IP65 50mm
VER. 1.1
CE
Compliant to EMC Directive 89/336/EEC for Electromagnetic Compatibility.
Low Voltage Directive 73/23/EEC not applicable for our trackballs.
Data Sheet
Explore other Industrial Trackball Products
Discover our range of industrial trackball products, designed for precision and durability in industrial applications.
Dual function IP65 joystick
E50-76A2AD Ergonomical 50 mm Panel Mount Trackball
E50-76A31D Ergonomical 50 mm Desktop Trackball
Latest blogs and articles.
Check out some of the recent blogs from the experts at Seatronx

When Does a Marine Bridge Display Need SDI Instead of HDMI?
Specifying a marine bridge display is usually treated as a pixel-count and brightness exercise. The pixel count gets old in five years. The video input

Which LCD Panel Type Belongs in a Marine Display?
Most marine display spec sheets read like an alphabet soup. TFT-LCD. IPS. PLS. VA. Wide viewing angle. Sometimes mini-LED. Occasionally OLED. The terms get stamped

Unmanned Bridges Raise the Bar for Display Reliability
On June 17, 2026, the American Bureau of Shipping signed a joint development agreement with Polaris Shipping, Hyundai Heavy Industries, and the AVIKUS autonomy team
Stay informed with the latest news
Stay informed with the latest updates and news.
From industry insights to trending topics, get all the information you need to stay ahead and in the know.