Orbeetle is mostly under-welming. It’s doesn’t have the base health to play defensive, nor the sp. attack to be a sweeper. It does however have decent speed. So here is an iron-ball set.
Orbeetle @ Iron Ball
EVs: 252 Health/ 252 Defense/ 6 (wherever)
- Skill Swap
- Confuse Ray
- Struggle Bug/Psychic/Bug Buzz
Without invested IVs, Psychic or Bug Buzz aren’t going to hit too hard. Struggle bug at least guarantees a lowered sp. Attack, even if it is a weaker move. You could also swap Confuse Ray for something like Recover, or safeguard. I don’t think Sticky Web is a good move for Orbeetle, just because there are better Pokémon to set up Screens or Hazards.