Pitch-Offset Nut

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Like the lead-offset nut, the pitch-offset nut uses a shift machined in the I.D. threads to enable 2-point contact of balls. The only difference is that the pitch-offset nut uses a two-start thread and the offset is between the two starts.

Each thread start has its own set of balls and ball returns.

Advantage:

  • Pitch-offset nuts are extremely compact

Disadvantage:

  • Pitch-offset preload can only be used in nuts with two (or more) starts

The pitch-offset nut has at least two threads. By the offset each set of balls uses an other thread flank of the spindle.