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› Scorpion bearings: stock versus something else
01-02-2010 10:08 PM  7 years agoPost 1
Dr.Ben

rrMaster

Richmond, VA, USA

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I posted this here for a wider audience versus the motor/esc forum.

For those of you who have done bearing replacements in HK4035 series motors, have you seen a statistically significant increase in longevity by using a ceramic or other non OEM bearing versus the stock ones? Assume routine lubrication as well. I have the motor torn down now to put in one of the new, harder shaft, and I'm going to change the bearings while I'm there.

Thanks,
Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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01-04-2010 01:13 PM  7 years agoPost 2
PJRono

rrKey Veteran

Minnesota, Ya!

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In my 4035 I used stainless race and ball, sealed bearings. I then used the greaser with synthetic Mobil 1 grease and pushed some in. Since I did that I have not had to do anything to it and it gets flown alot.

If you skip me I can't play!

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01-04-2010 01:18 PM  7 years agoPost 3
PJRono

rrKey Veteran

Minnesota, Ya!

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I've also done the same with stainless/ceramic/w seals and synthetic Mobil 1 grease with no issues.

If you skip me I can't play!

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01-04-2010 04:15 PM  7 years agoPost 4
Taipan

rrElite Veteran

Sydney, Australia

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I use whatever Japanese chrome steel bearings my local bearing shop has.

They don't really seem to last any longer than the stock ones. It's hard to tell as often don't feel any wear unless I take the motor apart.

In my 700E's I replace the bearings every 50 flights. They have a hard life! Really needs a top bearing block for the pinion.

No lubrication either. Any oil added will get flung out immediately & doden't mix too well with the existing grease.

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