Chris Walby Posted July 2, 2017 Share Posted July 2, 2017 Advice please from those that have successfully straightened brushless motor shafts?.I have a pair of 370-size, 1300Kv BL motors with bent shafts (only 3.15mm dia) see photo Questions: Is it better to press the shaft out of the magnet bell housing or straighten with it assembled (assuming they press apart and together reasonably easily)? As the bend is most likely just left of the magnet (and I don't have access to a lathe with collets) would it be best to grip the LHS shaft and tweak the other end - my thought is the chuck jaws are quite large and I might just induce another bend on the magnet side of the shaft the other way around. PS before anyone asks, fast full throttle dive, one blade came off one of the props and that side aileron servo gears stripped...better men than me might have lessened the impact! Quote Link to comment Share on other sites More sharing options...
John Tee Posted July 3, 2017 Share Posted July 3, 2017 Would be more accurate to change the shafts. Spares are advertised for many motors. Never done it myself but is fairly straightforward. There may be circlips on the shaft. I'm sure someone who has done will post soon. John Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted July 3, 2017 Share Posted July 3, 2017 A vertical drill press is good, as you can apply pressure and watch for movement as you push out the bent shaft New shafts are obtainable, but measure accurately to order the right diameter Quote Link to comment Share on other sites More sharing options...
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