The teeth on a helical (spiral) gear are cut at an angle so that when they mesh the mating flank of the teeth gradually roll into each other spreading the load as they rotate. They can be used in high speed applications and transmit a far greater torque than a spur gear. They also run smoother and more quietly than spurs.

LMR has tackled many complex applications in the past and is a leader in fine pitch crossed helical gear sets, which are used in many situations as diverse as medical and marine instrumentation.