Simrad ES70 - INSTALLATION REV A Installation Manual page 148

Simrad ES70
Figure 39 Example, internal and external threads
A Emuge's saw-tooth profile up to pitch P ≤ 0.7 mm
Emuge's saw-tooth profile up to pitch P ≥ 0.7 mm
B
Standard thread
C
External thread
1
Internal thread
2
Advantages
• The thread locking feature is integrated in the internal thread
• Modified profile with ramp surface in the direction of stress
• 30 degree ramp surface provides self-locking effect
• Easy assembly
• No assembly errors (forgetting the locking device) possible
• Use of standard external threads (screws) with tolerance class "medium"
• Even distribution of stress over the whole thread length
• No stripping of threads
• Economically efficient locking system, no additional components are necessary
• Undiminished holding power even under dynamic stress
• Repeated loosening and re-tightening without loss of function
• Internal threads can be produced with
• Larger thread hole diameters, i.e. increased tool life for threading tools
• Larger tolerances for thread hole diameters
146
taps, cold forming taps or thread mills
Emuge
343522/A