Dont worry about it. Saturday is the END OF THE WORLD. Those blades will be a lot more bent after the world ends.
But if we do survive, why would you spend time trying to straighten some blades made out of crap. Spend the $3, drill new holes if needed. You could even make blades if you're handy with wood. That sure beats trying to fix junk that should have never been sold in the first place.
Here's the llink to one of the many, many sites that stress the relationship between blade size/angle and the power of the motor:
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I quote...
The most powerful, durable and expensive motor is a "Stack" or "K55" style motor. ... The power allows for 14 - 16 degree blade pitch and use of wider blades so you get more air movement. ... Low Grade promotional fans use small motors to move narrow blades at near 10 degree pitches. The result is much lower air movement. Often having lifetime warranties.
Fan ratings : Performance, Medium, Moderate, Promotional
Performance 14 -16 blade degree --- Stack or 188x20 motors Medium 12 - 14 blade degree --- 188x12+ , or 172x14+ motors Moderate 10 - 12 blade degree --- 153x15 motors Promotional 8 -12 blade degree --- 153x13 or less
Even if you can bend the bracket, you'll never restore the angle exactly to its original state. The fan blade angle will then be off a little and will cause wobble.
If you run it fast enough and often enough, the fan may well loosen and work itself out of the ceiling mounting turning into a flying decapitation hazard.
This a funny post... well lemme tell yall something. I live in Colorado, where the humidity is 16% inside most of the time, and my blades still warped (6 years)... yes the fan is inside.
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