A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Mainwheel bearing service / greasing?



 
 
Thread Tools Display Modes
  #1  
Old March 20th 18, 10:21 AM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 1
Default Mainwheel bearing service / greasing?

My friend who has a 26E told me he recently disassembled his main wheel bearing as the wheel was noisy when landing, he felt it lacked grease and after regreasing and reassembling he reports the wheel is much quieter.
In my (31) Maintenance manual there is no mention of greasing the main bearing in the Lubrication Sheme (Section 8)
But in section 2 (Description of equipment) there is only this:

2.5.4 Maintenance of Landing Gear and Wheel Brake
Main Landing Gear
The maintenance of the main wheel is confined to visual inspection of
the tire, wheel rim, disc brake and shock absorber element. If badly
soiled, the landing gear should be cleaned immediately.
Also: do not forget to clean and lubricate the wheel bearings and shock
absorber bearings.

Does anyone have experience with this?
Forgive me if this has been a topic in the past, I looked through the site and the Technical site but could not find anything there.
Regards
Ed Marel
31047

Ads
  #2  
Old March 20th 18, 04:13 PM posted to rec.aviation.soaring
Darryl Ramm
external usenet poster
 
Posts: 2,142
Default Mainwheel bearing service / greasing?

On Tuesday, March 20, 2018 at 3:21:24 AM UTC-7, wrote:
My friend who has a 26E told me he recently disassembled his main wheel bearing as the wheel was noisy when landing, he felt it lacked grease and after regreasing and reassembling he reports the wheel is much quieter.
In my (31) Maintenance manual there is no mention of greasing the main bearing in the Lubrication Sheme (Section 8)
But in section 2 (Description of equipment) there is only this:

2.5.4 Maintenance of Landing Gear and Wheel Brake
Main Landing Gear
The maintenance of the main wheel is confined to visual inspection of
the tire, wheel rim, disc brake and shock absorber element. If badly
soiled, the landing gear should be cleaned immediately.
Also: do not forget to clean and lubricate the wheel bearings and shock
absorber bearings.

Does anyone have experience with this?
Forgive me if this has been a topic in the past, I looked through the site and the Technical site but could not find anything there.
Regards
Ed Marel
31047


I suspect you meant to post on the ASH26E owners group and not r.a.s.?
  #3  
Old March 20th 18, 04:33 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 1,738
Default Mainwheel bearing service / greasing?

On Tuesday, March 20, 2018 at 12:13:20 PM UTC-4, Darryl Ramm wrote:
On Tuesday, March 20, 2018 at 3:21:24 AM UTC-7, wrote:
My friend who has a 26E told me he recently disassembled his main wheel bearing as the wheel was noisy when landing, he felt it lacked grease and after regreasing and reassembling he reports the wheel is much quieter.
In my (31) Maintenance manual there is no mention of greasing the main bearing in the Lubrication Sheme (Section 8)
But in section 2 (Description of equipment) there is only this:

2.5.4 Maintenance of Landing Gear and Wheel Brake
Main Landing Gear
The maintenance of the main wheel is confined to visual inspection of
the tire, wheel rim, disc brake and shock absorber element. If badly
soiled, the landing gear should be cleaned immediately.
Also: do not forget to clean and lubricate the wheel bearings and shock
absorber bearings.

Does anyone have experience with this?
Forgive me if this has been a topic in the past, I looked through the site and the Technical site but could not find anything there.
Regards
Ed Marel
31047


I suspect you meant to post on the ASH26E owners group and not r.a.s.?


Useful info on either.
I grease the wheel bearings in my Schleicher sailplanes about every 100 landings which is 3-5 years. I have yet to find that they needed greasing when inspecting. All are privately flown.
An overheating brake could cause this to be much sooner.
FWIW
UH
  #4  
Old March 20th 18, 04:34 PM posted to rec.aviation.soaring
Charlie M. (UH & 002 owner/pilot)
external usenet poster
 
Posts: 991
Default Mainwheel bearing service / greasing?

Maybe he is looking for a general consensus since similar may apply across brands and models?
Or, maybe just an "oops" on what forum he was on?
  #5  
Old March 20th 18, 06:22 PM posted to rec.aviation.soaring
Charlie M. (UH & 002 owner/pilot)
external usenet poster
 
Posts: 991
Default Mainwheel bearing service / greasing?

My "generic comment", is, a bearing is a bearing, regardless of what it is used in.
Ball bearings may be different than tapered roller bearings.
Preload may be different.
A mechanical engineer (which I am not, but decades dealing with bearings and dealing with ME's) will likely say, a bearing is a bearing. What was the design, how do you service?
Almost no need to say, "too much lube", unless you're spreading lube onto composites that you may need to repair.
Don't be stupid on lube, but if you think it needs lube, do it.
BTW, WD-40 is NOT a lube.......
Period.........

I likely have 10 different lubes in my shop. Some stick, some penetrate, some are sorta composite safe, some deal with weather and/or loads better.
Whatever.

Oh, have a nice day.
;-)
  #6  
Old March 20th 18, 07:21 PM posted to rec.aviation.soaring
Per Carlin
external usenet poster
 
Posts: 63
Default Mainwheel bearing service / greasing?

After more than 40 years since manufacturing and about 2500 starts/landings was the bearings out of service on my LS1. Changed then with two new SKF bearings for about $8 each.
Have I lubed the the old ones, no they had rubber sealings wich effective makes lubing difficult, after consulting the SKF manual, these bearings do not require any kind of lube. They are the install and forget kind.
  #7  
Old March 20th 18, 07:55 PM posted to rec.aviation.soaring
jfitch
external usenet poster
 
Posts: 904
Default Mainwheel bearing service / greasing?

On Tuesday, March 20, 2018 at 3:21:24 AM UTC-7, wrote:
My friend who has a 26E told me he recently disassembled his main wheel bearing as the wheel was noisy when landing, he felt it lacked grease and after regreasing and reassembling he reports the wheel is much quieter.
In my (31) Maintenance manual there is no mention of greasing the main bearing in the Lubrication Sheme (Section 8)
But in section 2 (Description of equipment) there is only this:

2.5.4 Maintenance of Landing Gear and Wheel Brake
Main Landing Gear
The maintenance of the main wheel is confined to visual inspection of
the tire, wheel rim, disc brake and shock absorber element. If badly
soiled, the landing gear should be cleaned immediately.
Also: do not forget to clean and lubricate the wheel bearings and shock
absorber bearings.

Does anyone have experience with this?
Forgive me if this has been a topic in the past, I looked through the site and the Technical site but could not find anything there.
Regards
Ed Marel
31047


As I recall (and my recall is getting worse each year....) the ASH26E has sealed deep groove ball bearings. They should not be lubed, but rather replaced when beyond their service life.
  #8  
Old March 20th 18, 08:18 PM posted to rec.aviation.soaring
James Thomson[_2_]
external usenet poster
 
Posts: 34
Default Mainwheel bearing service / greasing?

At 19:55 20 March 2018, jfitch wrote:
On Tuesday, March 20, 2018 at 3:21:24 AM UTC-7,

wrote:
My friend who has a 26E told me he recently disassembled his main

wheel
bearing as the wheel was noisy when landing, he felt it lacked grease

and
after regreasing and reassembling he reports the wheel is much

quieter.
In my (31) Maintenance manual there is no mention of greasing the

main
bearing in the Lubrication Sheme (Section 8)
But in section 2 (Description of equipment) there is only this:

2.5.4 Maintenance of Landing Gear and Wheel Brake
Main Landing Gear
The maintenance of the main wheel is confined to visual inspection of
the tire, wheel rim, disc brake and shock absorber element. If badly
soiled, the landing gear should be cleaned immediately.
Also: do not forget to clean and lubricate the wheel bearings and

shock
absorber bearings.

Does anyone have experience with this?
Forgive me if this has been a topic in the past, I looked through the

site and the Technical site but could not find anything there.
Regards
Ed Marel
31047


If you have a Cleveland wheel their service manual (rather than the
glider manufacturer's manual) tells you to service the bearings and seals
annually or every 500 wheel miles which ever comes first. (Does
anyone record their wheel miles...?)

As I recall (and my recall is getting worse each year....) the ASH26E

has
sealed deep groove ball bearings. They should not be lubed, but rather
replaced when beyond their service life.


  #9  
Old March 20th 18, 09:45 PM posted to rec.aviation.soaring
Charlie M. (UH & 002 owner/pilot)
external usenet poster
 
Posts: 991
Default Mainwheel bearing service / greasing?

I would hazard a guess that by the time almost ANYONE gets 500 wheel miles on a sailplane wheel bearing, the airframe is long gone, even if someone rebuilds a 2-33 a few times (reference another thread about a "new" 2-33 for $75,000US).
;-).
  #10  
Old March 20th 18, 10:10 PM posted to rec.aviation.soaring
James Thomson[_2_]
external usenet poster
 
Posts: 34
Default Mainwheel bearing service / greasing?

At 21:45 20 March 2018, Charlie M. UH & 002 owner/pilot wrote:
I would hazard a guess that by the time almost ANYONE gets 500 wheel

miles
on a sailplane wheel bearing, the airframe is long gone, even if someone
rebuilds a 2-33 a few times (reference another thread about a "new" 2-33
for $75,000US).
;-).

Not true, actually. Our ASK21s do over 2000 launches per year, and have
done for the past 20 years. If you count tow-outs from the hangar,
retrieve to the launch point after landing, etc then 500 miles per year is

achievable. We look at the bearings each year, but we don't work out the

mileage!

 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Need True Bearing [email protected] Simulators 1 July 5th 09 05:57 PM
bolt not coming undone on asw-15b mainwheel [email protected] Soaring 3 April 2nd 09 12:40 AM
Greasing Al-Ko Surge Brake rlovinggood Soaring 3 March 17th 09 04:29 AM
US, Retrieve Cell service getting worse, Analog service disappearing. chris Soaring 10 December 24th 07 11:50 PM
Service Bulletins, Service Letters, Service Spares Letters O. Sami Saydjari Owning 5 December 26th 03 05:36 AM


All times are GMT +1. The time now is 08:02 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004-2018 AviationBanter.
The comments are property of their posters.