busaf4 Posted July 27, 2013 Share Posted July 27, 2013 Does anyone know where to get a rear axle seal. The drawing lists it as 27x266 but give no dimensions. Was going to bring the car to the Trek but things are not looking good since i am stuck on finding a replacementThanksArt Link to comment Share on other sites More sharing options...
Franklin31 Posted July 27, 2013 Share Posted July 27, 2013 FYI: here is info from Club tech Q&A; next type the numbers into ebay or Google search. " Dear Tom:I am not sure when the change was made to the double roller bearing on the Franklin rear axle, but sometime during the Series l5 perhaps. I know that the later, double roller set-up used an grease/oil seal just inboard of the inside roller brg, but the earlier single roller type has a felt seal that is near the differential and is impossible to replace without dismantling the differential--a large job and unnecessary if I can fit a seal to the axle tube just inside of the roller brg. I thnk that the slight amount of welding bead that obstructs the axle tube just inside of the machined outer wheel brg. housing ( the part that is welded to the axle tube) can be safely ground away without seriously weakening the joint. The i.d. of the tube is very close to 1.933 or about 1 l5/16ths" and the o.d. of the axle shaft is l.523"--within the range of a 1 1/2" i.d. oil seal. The alternative is to fit a new felt seal into the deep groove in the wheel brg "cone" retainer--the part that retains the outer race or "cone" of the roller brg. Much of the felt seal's housing would have to be machined away in order to fit a conventional oil seal and I'm not entirely sure there is enough material if the piece is machined to the required 3" o.d. of a 2 1/2 i.d. x 3" o.d. seal. I could probably fit an o-ring into the groove that originally held the felt seal. However, to really have a good seal, I think the oil seal should be inboard of the roller brg., as in the case of modern automotive practice. One final thought: fitting a vent to the differential's sheet metal cover to relieve the inevitable pressure build-up as the axle warms up during operation. Obviously, this should be at the top and "looped" so as to prevent the ingress of water, etc. All of this effort is to keep gear oil and wheel brg. grease off of those new brake linings. With all due respect to Franklin's engineering dept., I believetha the original method an be improved upon. Aura Vincit and happy holidays! Ed Joy, Coeur d'Alene, IdahoANSWER: rear wheel bearing seal arrangement for Series 14 using a single TimkinEd - I have always machined the outer wheel bearing retainer for a lip seal and done away with the felt seal. My reasoning has always been that with the double rollers well packed with modern grease, it would be difficult for gear lube to penetrate the rollers and if it could, or did, the outer drum seal would stop it. I have used a Chicago Rawhide seal #24881 ( 2.500 shaft, 3.189 bore, .438 width, heavy duty lip) This seal requires machining of the bearing retainer felt groove away and out to 3.189" There is enough meat to accomplish this safely. On my own 153 and on Richard Harry's 153, there have been zero leakage problems in almost 30,000 miles combined. I have had my rear drums off recently as well - no leaks, all doing fine. I also have a seal number that I have marked as an outer axle housing seal, but I believe it fits the '32 - '34 Airman. It is CR#15230 and fits the 1.500" axle shaft surface. I think the O.D. is too big for your housing, however. Maybe this is a V/12 seal? I have to start taking better notes as my 'experiences' turn into distant memories. I've usually put inner seals on the Ser. 14 and earlier - next to the differential. This seal is a CR 13433 and keeps everything out of the axle housings. As you say, they're a pain to install. We do it when we have the differential out for a gear swap, or overhaul.You are correct in your awareness of the need for a vent. I have used lots of variations...." Link to comment Share on other sites More sharing options...
Franklin31 Posted July 27, 2013 Share Posted July 27, 2013 More data from Club Q&A ( you are a member aren't you) " QUESTION/ANSWER LATE SERIES 13, 14, 15 REAR WHEEL BEARINGS AND SEALSArnie,Timken cup 332, and Timken cone 347 are the correct rear axle wheel bearings used from sometime in late 1929 Series 135-137, Series 14, 15, 16 (not sure about later than that). Two bearings per side and they are getting VERY expensive, so take good care of them !!!!! Those wheel bearings (and the other rear axle bearings), are still available, but getting tough to find. They are not stocked in regional warehouses, so many auto parts stores don't have them listed in their computers. They may tell you they don't exist because they don't want to do alot of digging. They do exist, but you may have to look in the yellow pages for a bearing supply house, transmission repair shop, or try RockAuto Parts Catalog . All the rear axle seals are still available too. Here are the numbers.Late series 13 - 15. Outer wheel bearing seal, Chicago Rawhide CR 24881 or, National #472029 Inner wheel bearing seal, Chicago Rawhide CR15214, or National #473440 Pinion flange seal, CR13430 Paul Fitz" Link to comment Share on other sites More sharing options...
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