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Re: (ET) steering mounting bearing

That unfortunately fell victim to a rather drastic change in lifestyle, post spinal cord injury. :( With a bit of diligence, and knowing the dimensions of the shafts involved plus a helpful counterman at a Berry Bearings or similar specialty outfit, one could probably retrace my steps. The flange bearing for the pinion shaft was an off the shelf Grainger item, as was the pillow block for the sector shaft. {NOTE: Since there is a larger diameter pinion shaft used in some tractors, the flange bearing idea may not be feasible due to space constraints.} The pillow block installation for the front of the sector shaft will require relieving the support it attaches to to maintain the sector shaft center line, front to rear. The Torrington® thrust bearings and plates are off the shelf items, as is the roller bearing for the sector shaft.The hardened sleeve will no doubt be the province of a bearing store. If money were no object, Heim or similar joints, plus custom made tie rods are another update.Bill Gunn also fabricated new axle ends with either bushings or bearings in them for severe use loader or fork truck ET applications.It's nice that OPEO chose to use standard dimension stock to fabricate the steering system. <VBG> And one more thing. Get someone to stainless weld the cast sector gear to the steel shaft.No more lost motion due to loose fitting Woodruff keys and fractured roll pins. I wish that I could be more helpful."That was THEN,this is NOW",as the song goes.............. 

RJ


On 8/2/2013 6:32 PM, Steve Welch wrote:

Great description of the necessary mods.  Now where's the itemized list of 
parts (with sources & part numbers) required?  ;^)

Steve


On Aug 1, 2013, at 10:49 PM, RJ Kanary wrote:


I have nothing up building to say about that arrangement.It possesses no 
precision or long term durability in heavy use.I've improved upon it somewhat 
by using flat Torrington bearings and shims on either side of the sector gear 
shaft where it goes through the bushing to limit lost motion there. Ideally 
the bushing should be replaced with a roller bearing, and the sector shaft 
machined to accept a hardened sleeve to promote long life plus less friction 
& wear.
                                  Grind the support down where the pinion 
shaft enters it to guarantee maximum gear mesh.A cast flanged ball bearing 
at the top of the pinion shaft where it penetrates the Control Cabinet is 
worth considering also.Two five-sixteenths inch bolts used to hold a Cast 
Iron Ford Automatic Transmission pressure regulator body in place are 
perfect there, since the have a seven-sixteenths hex head instead of the 
customary half-inch heads found on that size of bolts.There is not 
sufficient room there for bolt heads that large when using the ball 
bearing with flange.
                                         The furnace blower bushing on the 
opposite end of the sector shaft is best replaced with a cast pillow block 
ball bearing with set screws on the collar to affix it to the sector 
shaft.Some modification of the support will be required to properly mount 
the pillow block.

               Are you sorry you asked, now ? <VBG>


RJ Kanary
ASE® Certified Master Auto Tech, (Retired)
rjkanary consolidated net


On 8/1/2013 7:23 PM, tb wrote:

OK, don't everyone speak up at once.  :-)

Any one feel like educating me about these bearings?

Thanks.

Thon

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