Strgazr27
Vendor - Deep Space Mods and Composites
Reged: 10/04/04
Posts: 6984
Loc: StonyHill Observatory
|
|
I've had a few PM's on what bearings are needed and where did I purchase them. The following is list of the bearings that I purchased. I did not replace all the bearings on the DEC axis as it's really not needed due to tracking in the DEC axis is really not an issue. It's the RA we're worried about along with the Worm block bearings.
The worm block bearings were purchased from www.VXB.COM
Kit7513 608-2TS Ceramic Skate Bearing 8x22x7 Teflon Sealed 4 $9.95 $39.80
These are perhaps a bit of overkill but figure they were worth it. I have used ceramic bearings in some of the HP 1/5 scale RC cars I own and have been impressed with the smoothness and durability.
The rest of the bearings were purchased from www.ebatmus.com
------------------------------------------------------------------------------
Item # Description Quantity Price Total
------------------------------------------------------------------------------
6008 2RS BALL BEARING 40X68X15MM 2 SEALS 4 $18.91 RFQ
30206 J2/Q TAPERED ROLLER BRGS 1 $14.33 RFQ
32208 J2/Q TAPERED ROLLER BRGS 1 $22.94 RFQ
------------------------------------------------------------------------------
Hope this helps those that were interested.
CS's
--------------------
Bobby
StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG
YAHOO TMB 130SS Group
Astronomy Technologies Yahoo Group
|
OMAR
sage
Reged: 05/09/07
Posts: 311
Loc: Sunrise,Florida
|
|
Hi Strgazr27
Are those parts are for the Atlas as well cause I have one and I have not decided whether to replace the worm gears from RA since it has some play.How difficult is to replace them? Any info will be kindly appreciated.
Best regards from the caribbean,Omar
--------------------
Omar
Celestron SC 9.25
Antares 152mm F/6.5
Intes Micro MN66
Atlas EQ/Dual Drives
Philips SPC 900 Webcam
My dream Scope:TEC 140
|
Strgazr27
Vendor - Deep Space Mods and Composites
Reged: 10/04/04
Posts: 6984
Loc: StonyHill Observatory
|
|
Omar,
The Atlas is the same mount as the EQ6 so the bearings should work fine.
CS's
--------------------
Bobby
StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG
YAHOO TMB 130SS Group
Astronomy Technologies Yahoo Group
|
David Culp
Pooh-Bah
Reged: 04/10/07
Posts: 1177
Loc: Carrollton, TX
|
|
I have now bookmarked this post so I can order new bearings for my EQ6!
Question - How hard is tearing down an EQ6 and replacing the bearings compared to something like an LXD-75. Ive been trying to find good instructions for tearing the mount down and doing a regrease and bearing replacement but Ive not come across anything that meets my needs.
I just did my LXD-75 and except for a few problem areas it went pretty easy and smooth.
--------------------
Atoka, Ok
|
Telescopeman54
Vendor - Trapezium Telescopes & Services, LLC.
Reged: 08/17/07
Posts: 1541
Loc: New Hampshire
|
|
The Atlas is a much more complicated item. The LXD55 is simple in comparision. However, if you take lots of pictures as you disassemble it, you should do well.
sbf
--------------------
Stephen Forbes - President
Trapezium Telescopes & Services, LLC
61 Valhalla Farm Road
Hillsboro, NH 03244
Web: http://TrapeziumTelescopes.com
Email: Stephen.Forbes@TrapeziumTelescopes.com
Phone: 1.603.325.0619
6" f/15 Jaegers refractor on GOTO GEM
5.1" f/8 Burgess on CG-5 w/ iOptron GOTONOVA
102mm f/7 refractor on iOptron Mini Tower
1975 Celestron Orange Tube C8 on Equatorial Mini Tower
1978 RV-6 on iOptron Mini Tower
|
TheSheriff
sage
Reged: 07/15/07
Posts: 237
Loc: Oregon
|
|
I have also bookmarked this thread. Thanks for the info SG. I look forward to updates on your site.
I have yet to assemble all my parts for AP, but being a perfectionist (within my limits) and tinkerer, I see myself giving the Atlas an overhaul, needed or not. 
Have you found a better site than Beevo's for these mods?
--------------------
Brad
C8SE XLT, TMB 80SS, Orion ST-80
Atlas EQ-G/EQMOD
40D (Self-Mod), WO 0.8 Flat II, SSAG
|
David Culp
Pooh-Bah
Reged: 04/10/07
Posts: 1177
Loc: Carrollton, TX
|
|
I know I will probably do the same thing also! Im not all that handy but as long as it is pretty straight forward and doesnt need any strange, rare or exotic tools I should be allright.
--------------------
Atoka, Ok
|
Strgazr27
Vendor - Deep Space Mods and Composites
Reged: 10/04/04
Posts: 6984
Loc: StonyHill Observatory
|
|
I'm hoping to get the mount into work hopefully this weekend. I will be doing a comprehensive step by step with pictures as I go documenting a complete teardown and rebuild. It may take me a few days after that to put it together but it will be done in a week or 2.
CS's
--------------------
Bobby
StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG
YAHOO TMB 130SS Group
Astronomy Technologies Yahoo Group
|
OMAR
sage
Reged: 05/09/07
Posts: 311
Loc: Sunrise,Florida
|
|
Thanks Strgazr for the info.Ill also be checking your photos of the repair that will be very helpful for my lack of mechanic skills.
CS's
--------------------
Omar
Celestron SC 9.25
Antares 152mm F/6.5
Intes Micro MN66
Atlas EQ/Dual Drives
Philips SPC 900 Webcam
My dream Scope:TEC 140
|
SPACEMAN
sage
Reged: 01/30/05
Posts: 218
Loc: grömme,Belgium
|
|
I agree that the EQ6 is very complicated. I also updated my mount with SKF bearings.
Very nice stuff after all. But be carefull with all small parts.
--------------------
14" SPX, F4.6, F1/10 Orion Optics 1/10 Lamba
EQ6 on Stativ 40, Escap P530.004 motors
12X80 f3.7 finder by Herman Ten Haaf
6" Sky-wacther Refr. On GP with MT-1 motors
Dew Buster, Kendrick dew heaters
Controller for the 2 mounts: Dynostar x3 3.2Amp
Kendrick Astro tent
|
skyler
Carpal Tunnel
Reged: 08/16/06
Posts: 1671
Loc: TGPNW
|
|
What did the updated bearing do for you? Was there a marked improvement in PE for imaging work?
S
|
SPACEMAN
sage
Reged: 01/30/05
Posts: 218
Loc: grömme,Belgium
|
|
I dident do it for Imaging work. But the improvement for visual use was remarkable.Very smooth. All ways better then the chinees bearings
--------------------
14" SPX, F4.6, F1/10 Orion Optics 1/10 Lamba
EQ6 on Stativ 40, Escap P530.004 motors
12X80 f3.7 finder by Herman Ten Haaf
6" Sky-wacther Refr. On GP with MT-1 motors
Dew Buster, Kendrick dew heaters
Controller for the 2 mounts: Dynostar x3 3.2Amp
Kendrick Astro tent
|
BCB
Undercover Saboteur
Reged: 11/24/03
Posts: 5189
Loc: Look over your shoulder
|
|
Hey Star, if there's plastic spacer washers used in the setup of the worm gears, I have some skived teflon sheet in a few thicknesses I can spare. Between the teflon spacers instead of plastic, and new tighter tolerance bearings, that mount ought to work sweet.
--------------------
Mark
Lost in thought. Please send search party!!!
Astro-Tech 111EDT
Orion 8" F5 Newt w/Moonlight CR-2 focuser
SVP mount w/Meade 497 Autostar GOTO mod
Treeline Observatory
|
Bennett Burbank
newbie
Reged: 09/30/05
Posts: 3
|
|
Is there any benefit to going with the considerably more expensive bearings from SKF (non-Chinese)?
Thanks!
- Bennett Burbank
|
SKYGZR
journeyman
Reged: 08/14/09
Posts: 8
|
|
Good info to know. I take it both axis's have the same bearings? 'cause if i'm gonna do it someday, might as well do both.
--------------------
"My GOD, It's Full of Stars!"
|
Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3385
Loc: Santa Cruz Mountains , CA
|
|
I just rebuilt mine with the kit from astro-rubylith and I can say it makes a difference for sure.
As far as PEC I started with 18 peak to peak out of the box and by doing the rebuild I got it down to 8 peak to peak.
Ill bet by doing some more fine tuning I can even get more then that , I would say at a bare minimum to replace the worm gear bearings with the ceramic ones and do a relube and fine tune gear mesh.
Oh and it does use the same bearings for both axis , 6 of them plus the 2 race plus 4 for the worm gears.
--------------------
Erik
Orion Atlas Self Hypertuned (EQMOD)
Orion ED 80
Williams Optics VII reducer
Celestron 8" SCT
Orion Starshoot Autoguider
PHD guide
Canon 400D Hap Griffin Mod w/Baader filter
Astronomik clip-in LP filter and 12nm Ha
Stilleto CVF and Bahtinov mask
Tamron 75-300mm&28-80mm lenses
NexImage webcam
http://www.flickr.com/photos/31986095@N05/
Edited by Nils_Lars (10/07/09 11:54 PM)
|
Bennett Burbank
newbie
Reged: 09/30/05
Posts: 3
|
|
Do the large bearings that you got from Astro-Rubylith (which are Chinese for sure at that crazy-low price) make a difference in the looseness / smoothness of the axes? I have a very sticky DEC axis which makes balancing impossible.
|
Joseph Gillman
Carpal Tunnel
Reged: 12/06/05
Posts: 2767
Loc: Aston, PA
|
|
My guess is, from watching the hypertune dvd multiple times and being in the middle of my own rebuild, that the only thing letting the gear move when you lock the clamp are in fact those bearings, and also the bearing-spacer interface.
The bearings might be fine or just need a regrease, and perhaps the spacers (nylon or other cheap plastic) are damaged. I will be looking to replace my spacers with the teflon ones.
--------------------
|
Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3385
Loc: Santa Cruz Mountains , CA
|
|
Im sure they are chinese and I might do another rebuild later on to put the more expensive ones it , it was really pretty easy and it definitely made balance easier and the whole thing runs smoother.
--------------------
Erik
Orion Atlas Self Hypertuned (EQMOD)
Orion ED 80
Williams Optics VII reducer
Celestron 8" SCT
Orion Starshoot Autoguider
PHD guide
Canon 400D Hap Griffin Mod w/Baader filter
Astronomik clip-in LP filter and 12nm Ha
Stilleto CVF and Bahtinov mask
Tamron 75-300mm&28-80mm lenses
NexImage webcam
http://www.flickr.com/photos/31986095@N05/
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
