How is overload wear represented?
Ripples and ridges
What are the 2 issues cracking caused by
Failure in heat treatment or improper machining
What is interference wear caused by?
Misalignment
What is galling caused by?
Inadequate lubrication
What causes tight joints?
Substancesgetting in or bent pins?
What causes enlarges holes in chains?
High overload
What are the 4 most common materials for sprockets?
Steel
Alloys
Hard fibre
Plastic
What should you look for in a sprocket to see if there is wear?
Worn Teeth
Misalignment
What are the 3 types of screw jacks?
Worm and peg
Worm and nut
Ball
What is the issue with worm and peg mechanism?
Excessive backlash
What is the most common worm mechanism?
Worm and nut