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Details to look for during new and used machinery inspection:
Maximum rated diametral pitch
Index range
Face capacity - spur & pinion
Face capacity - 45 degree helical gears
Max. diameter hob
Minimum centers work and hob arbors
Diameter hob arbor
Hob speed range
Feed range

Arbor support, overarm to work-arbor support, top adj. centers, tangential cutter head, hand indexing devise, internal attach., rim brace, leveling blocks, work supports, arbors, fine-pitch attach.


*This is one article in a series of How to Buy Metalworking Equipment. Each article showcases and explains a particular type of metalworking machine. They were originally published in the Metalworking Machinery Mailer published by the Tade Publishing Group.