Turret Bearing Upgrade

Forum for discussion relating to Tiger 1, Mid, Early, Late Production and Sturmtiger
Post Reply
Steve Stuart
Posts: 647
Joined: Fri Apr 18, 2008 11:34 pm
Location: Oxford
Has liked: 59 times
Been Liked: 46 times

Turret Bearing Upgrade

Post by Steve Stuart » Fri Feb 01, 2019 10:47 pm

The original upgrade, a nylon bearing:
DSCN0277s.jpg
Nylon Bearing
Having seen the new Tiger with a lazy susan annular bearing and been impressed by how low a turning force is required I have worked how to retro fit it to my Early Tiger.
Armortek Tiger 131 Construction Manual-43 Page 29.jpg
Armortek Instructions Page 29
I needed to order from Armortek the Bearing CE2103, the Lower Spacer CE2173 and finally a new Gear Ring CE2409. The old gear ring does not register with the holes in the new bearing assembly, so in with the new! There was another spacer required to sit between the the deck and the Bearing CE2103, so I purchased off ebay a cheaper bearing of the same size as it was dismantled to use the outer ring as the spacer required. This is because a recess needs to be made to accommodate the depth of the Turret.
The first thing was to register the Bearing CE2103 on to the deck and drill through 5mm holes and countersink them to attach the bearing and spacer to the underside of the deck:
DSCN0284s.jpg
Bearing Attachment to Deck
holes

The next thing was to line up the bearing to the Turret, using 3mm drill bits as pegs in the old Gear Ring bolt holes, I drilled through the new Bearing to create location holes for the 5mm dome headed nuts that secured the stack of Bearing CE2103, Spacer CE2173 and Gear Ring CE2409:
DSCN0286s.jpg
Bearing Alignment
DSCN0310s.jpg
Bearing Alignment Dome Nuts
DSCN0313s.jpg
Turret Bearing Location Holes
The Turret Motor mount had a spacer block fitted between it and the deck to lower it and to allow for a change of position owing to the larger diameter of the Gear Ring CE2409:
DSCN0306s.jpg
Gear Mount Block
To secure the Turret Down I have fitted two Catches:
DSCN0316s.jpg
Turret Catch
The Spacer and Bearing needed the fore and aft edges filing down so that it cleared the deck support beams, otherwise the overall width was to great to fit in between. The height of the turret in the recess can be adjusted by adding washers under the dome nuts. All in all it turned into a straight forward job, and is a neat upgrade.
Attachments
DSCN0295s.jpg
Turret Location Holes

Christoffer Ahlfors
Posts: 360
Joined: Sun Feb 14, 2010 5:19 pm
Location: Stockholm, Sweden
Has liked: 152 times
Been Liked: 46 times

Re: Turret Bearing Upgrade

Post by Christoffer Ahlfors » Sat Feb 02, 2019 7:45 pm

Great modification - thanks for the description! :D
I particularly like the catches to hold the turret secured!
Klotzen, nicht kleckern (Guderian on panzer tactics, but the way I interpret it - it applies to a great many things in life)

Simon Peck
Posts: 166
Joined: Tue Jan 12, 2010 11:24 am
Been Liked: 5 times

Re: Turret Bearing Upgrade

Post by Simon Peck » Sun Feb 03, 2019 12:04 pm

Super upgrade. If easy, why don’t Armortek offer it? Must surely be popular!

Steve Stuart
Posts: 647
Joined: Fri Apr 18, 2008 11:34 pm
Location: Oxford
Has liked: 59 times
Been Liked: 46 times

Re: Turret Bearing Upgrade

Post by Steve Stuart » Sun Feb 03, 2019 6:19 pm

Possibly because it is the sort of thing that Armortek leave to customers to work out for themselves, because they know it keeps us entertained working solutions out. The main thing is that Armortek will supply the parts to allow us to do these things under our liability. Who knows what each older model has undergone in terms of upgrades and changes, so you have to be prepared to adjust the recipe to suit! Anyway I am grateful to Kian and Monique in getting this upgrade onto my Tiger. I am prepared to add more if what I have written needs clarification, just send a PM.
Steve

David Battson
Posts: 44
Joined: Mon Jul 23, 2007 9:51 pm
Location: Gloucestershire
Has liked: 21 times
Been Liked: 21 times

Re: Turret Bearing Upgrade

Post by David Battson » Mon Feb 04, 2019 10:39 pm

Steve,
Well done for working this all out. It's really good to know that this conversion can be achieved without the need for major surgery to the original tank parts.
David

Vince Cutajar
Posts: 1045
Joined: Wed Nov 15, 2017 1:43 pm
Location: Malta
Has liked: 123 times
Been Liked: 297 times

Re: Turret Bearing Upgrade

Post by Vince Cutajar » Sun Apr 14, 2019 2:00 pm

Steve

Did you lubricate the bearing?

Vince

Steve Stuart
Posts: 647
Joined: Fri Apr 18, 2008 11:34 pm
Location: Oxford
Has liked: 59 times
Been Liked: 46 times

Re: Turret Bearing Upgrade

Post by Steve Stuart » Sun Apr 14, 2019 11:07 pm

Vince, I have not as yet lubricated the bearing, as and when I think I will use a dry lubricant such as TF2 which contains PTFE beads. I don't want anything greasy or liquid oozing from the bearing!
Steve

Vince Cutajar
Posts: 1045
Joined: Wed Nov 15, 2017 1:43 pm
Location: Malta
Has liked: 123 times
Been Liked: 297 times

Re: Turret Bearing Upgrade

Post by Vince Cutajar » Mon Apr 15, 2019 7:08 am

Thanks Steve for the info. I have a can of silicone spray and was thinking of using that.

Vince

User avatar
Armortek
Site Admin
Posts: 2050
Joined: Tue Jul 10, 2007 10:30 am
Location: Winchester, England
Been Liked: 474 times

Re: Turret Bearing Upgrade

Post by Armortek » Mon Apr 15, 2019 8:53 am

Vince Cutajar wrote:
Sun Apr 14, 2019 2:00 pm
Steve

Did you lubricate the bearing?


Vince, there is no need to lubricate the turret bearing.
Kian
Armortek

Vince Cutajar
Posts: 1045
Joined: Wed Nov 15, 2017 1:43 pm
Location: Malta
Has liked: 123 times
Been Liked: 297 times

Re: Turret Bearing Upgrade

Post by Vince Cutajar » Mon Apr 15, 2019 9:57 am

Thanks Kian. Good to know. As the body of the bearing is aluminium I was worried about wear but I will heed your advice.

Vince

Post Reply