FSREPAIR wrote:Steve,
There is a new US made spin reel made down in Missiouri called the Ray Scott Super caster 225. When it first came out a couple of years ago I talked to Fred Kemp the guy who designed and built the reel. He told me that the cost of the making the worm gears are the most expensive part on the whole reel. The teeth on the drive gears are also spiraled which takes more time to machine. The selling price for a Shakespeare Sea Wonder 2090 in 1959 was $47.50. That was a pretty good chunk of change in those days. Randy
From what I understand, worm gears wear in and improve with prolonged service versus other gear configurations which wear out with prolonged service.
Two or more teeth are in contact with the worm at all times, transmitting power by a continuous, quiet and shockless action. As a result, the flow of torque is smooth and free from angular velocity changes "Cranking the reels handle" , thus eliminating vibration and other customary gear noises.
Worm gears have to be hobbed or cut on special gear cutting machines using hobbs to form the gear. A tooth form is designed such that the gear teeth operate under a crushing, rather than a bending load.
For this reason, extremely high momentary and shock loads, damaging to many forms of gearing, can be successfully withstood. Also, high momentary overloads will seldom cause failure.