Gear skiving or hard re-hobbing is the process of using a carbide hob to re-hob
spur or helical gears after heat treat (50-62 HRC) to reduce distortion
errors. Gear skiving can be an economical alternative to gear grinding
with comparable quality and surface finish. The gear skiving process
is also effective in reducing noise. In cases where there is a shoulder
close to the gear teeth, we are able to skive where grinding may not
be possible by using a small diameter skiving hob.
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The skiving process requires special equipment to synchronize the
hobs with the workpiece. At First Gear, our experts perform the skiving
process on almost a daily basis. Gear skiving or hard re-hobbing is
possible on fine pitch gears where gear grinding may not be feasible.