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HelicopterAudacity Models P6 Pantera - Tiger 50 › Pantera Head Vibration -SOLVED
11-28-2007 06:56 PM  9 years agoPost 21
Herc

rrKey Veteran

Cranbrook, BC - Canada

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I bought the stuff that Paul sells with the greaser. Can't remember what it's called at the moment but if you go to his site it will list it there. Not sure what qualities make it a good grease for bearings in RC models but it seems to work well.

Tiger & Pantera 50s
BRC Intrepid Gas
Predator Gas SE
Hirobo SST Eagle 2 98
Evo 50s

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11-28-2007 08:18 PM  9 years agoPost 22
The Dude II

rrVeteran

IN - USA

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As HERC said...regular intervals!

I've used Triflow grease, Boca Bearings Heli Lightning Lube...and another synthetic "white" grease from my local bearing shop here in Indy. All with good results. Grease is like soda...lots of colors and flavors...you want one that is for the rpm range and type of bearing.

Intervals: Here's what I do...(any way?!):
Tail Grips and Tail output...every 4-6 gallons (the output are running close to 10K rpm...the T/R grips are flung at with great centrifugal force that literally works the grease out of them)
With all the exhaust oil that gets "worked in"...they need attention!

Main grips...8-12 gallons (or spindle/main shaft replacement due to dumb-thumbs).

All the little 4x8x3 in the head linkages...once or maybe twice a season (season = 150+ flights per airframe).

All the bearings in the blocks/frame...each new spindle/main shaft...if they weren't damaged in the event that cause you to pull these parts. IF you're getting 50+ flights between churning dirt sessions...maybe time to inspect and lube.

Keep in mind the main shaft is usually 1700-2100 rpm and though they carry the entire load of the heli...they're not under great centrifugal forces that fling the grease out of the bearing.

The clutch pinion support bearing is running at engine RPM...so 15k to 17K...give it your attention from time to time.

The Starter shaft bearings(3 of them) are spinning pretty quickly too...not exactly engine rpm but fast...check them when checking the clutch pinion.

Think that leaves the tail belt drive bearings...again, these dudes are spinning at the T/R rpm...so 9k-10k...give'em some love.

One point that I've learned this past season...if you've bent a spindle and/or Main shaft...there's a good chance you've damaged the bearings too. Bearings are silky smooth when new and when taken-care-of properly over their life-span. A bearing that you can "feel" bumps or rough spots as it spins...means the bearing has undergone an extreme loading or has ingested enough dirt to foul the balls and or races...replace it!!! Get enough rough bearings in an airframe spinning fast enough...and you may experience radio lock-outs/glitches...due to RFI (radio frequency interference) being generated by the "bumpy" metal on metal make/break contact going on inside a bad bearing.

Finally, when you're cleaning (alcohol, windex...what ever)...try not to get the bearings wet!

lotta ins, lotta outs

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11-28-2007 08:50 PM  9 years agoPost 23
michael88997

rrElite Veteran

Lewisville,Tx

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i give my bearings alot of attention but what do yall use to lube the main shaft and tail shaft?

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11-28-2007 09:25 PM  9 years agoPost 24
tracvision

rrApprentice

Tampa, Florida

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Maintenance / Bearings etc.

This has turned out to be a great maintenance thread. It's a great asset to have all of this experience at hand. Harold

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11-28-2007 09:31 PM  9 years agoPost 25
The Dude II

rrVeteran

IN - USA

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No lube on the shaft itself...unless you're speaking of what to "wet it with" for the washout base, guide pins and center pivot on the swash...then...Triflow.

lotta ins, lotta outs

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HelicopterAudacity Models P6 Pantera - Tiger 50 › Pantera Head Vibration -SOLVED
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