![]() 5) Special consideration must be given to top lands in fine-pitch hardened worms and wormgear-cutting tools. ![]() 4) Equipment generally available for cutting fine-pitch wormgears has restrictions which limit the diameter, the lead range, the degree of accuracy attainable, and the kind of tooth bearing obtainable. 3) Because fine-pitch worms and wormgears are so small, profile deviations and tooth bearings cannot be measured with the same accuracy as can those of coarse pitches. Tooth strength except at the coarser end of the fine-pitch range is seldom an important factor durability and accuracy, as they affect the transmission of uniform angular motion, are of greater importance.ΔΆ) Housing constructions and lubricating methods are, in general, quite different for fine pitch worm gearing. 1) Fine-pitch worms and worm gears are generally used to transmit motion (linear or rotary) as opposed to power or torque. ![]() Worm Gear Formula Table Worm gears are grouped into two general classes, fine-pitch worm gearing, and coarse-pitch worm gearing. ![]()
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