48 teeth gear wheel with 50 mm axle hole for dyno test bench roller speed sensor. Suitable for measuring the roller speed with the roller speed sensor which is supplied with the Sportdevices SP1/SP3/SP5 test bench dyno electronics kit. Dimensions 35 mm wide, outside diameter 100 mm. Diameter hole for axle 50 mm. Gear wheel has a M8 lock screw.
It is very important to use a very strong roller speed sensor bracket to realize stable power measurements. Therefore we also advise to use our standard mounting bracket (see accessoiries).