Doug996InKC

UPDATE (March 29, 2013): Skip to post #19 for DIY.

Anybody have the bearing size for a deflection roller (996.102.120.55)? OEM bearing is German made by "***". Has anyone pressed a new bearing into the pulley assembly, instead of purchasing the newer, complete assembly 997.102.119.00 (for $100+)?

Updated Photos: March 21, 2012

5CHN3LL

No, but a VERY careful Google search found some distributors for F.A.G. bearings:

daltonbearing.com

I'm guessing your photo plus that distributor will net you a replacement.

ECS Tuning

Not sure of the bearing size but we do offer the whole assembly for a bit cheaper then a 100. For more information on the 997.102.119.00 Click Here.

nick49

brush the dust off the outer race and read the number. Most likely something like a 6203 for $3-$10 for the bearing unless it's proprietary then you can't buy it. I recently replaced bearings in a non-serviceable electric motor, saved bank.

KrazyK

For less than $100 I would consider the ECS part for peace of mind and less trouble. If it were a $500 part I would replace the bearing for sure. For only $82 not worth your time IMO.

If you decide to replace the bearing its probably in the $8 to $10 range. The sizes and types are explained on may bearing makers websites. You need the numbers and info stamped on the race. I cant see them on the pic.

Maybe spend the $82 and be done with it?

baskin

Angular ball bearing SKF 3202 A-2RS1TN9/MT33 15 x 35 x 15.90 mm
http://medias.ina.de/medias/en!hp.ec...3202-BD-2Z-TVH

Doug996InKC

Yes, that's a good price from ECS (thanks ECS!), and I'm evaluating options. Thing is, I just dropped $7k + on VF Supercharger, replacement coolant hoses, brake rotors, pads, thermostat, water pump, etc., etc., etc..., so attempting to save where I can at this point.

Thanks for the info baskin. I sent an inquiry to Medias to confirm it is the proper bearing. That link sparked some additional thoughts on this subject -- it's not only the size of the bearing that is important, but also the specifications such as load rating, fatigue rating, etc. I'll report back when I have something further. Cheers guys!

Imo000

You are thinking this. Just get a replacement bearing based on the race number and be done with it. There is nothing special about this bearing.

Doug996InKC

Cleaned up the race and photographed the bearing in macro mode. See updated photos in post #1. Will have the bearing pressed out of the pulley housing to take measurements.

nick49

check this:

http://www.ebay.com/itm/5202-2RS-Bal...-/130330442352

Stephen Tinker

Doug996....
A couple of years ago, I pressed out all 3 deflection & idler roller bearings and re-installed new Japanese NSK bearings (supplied by my local bearing supplier) into the rollers. Twelve months / 4,000 miles later when I was completing my annual inspection, I removed the serpantine belt to check the 3 x rollers. Two bearings were already gritty and required replacement, so I bought the complete roller assemblies from Porsche.
You may save a few $$ by just renewing the bearings, but if I were to do the work again, I would use the new complete roller assemblies every time. The last thing I need is an idler bearing to collapse and rip the serpantine belt to bits.....

Imo000

You must have gotten bearings from a defective batch. Porsche gets these bearings from ***, they are a quality manufacturer like NTN or Timken. A standard bearing like this has no reason not to last as long as the one they sell to Porsche. There are also Chineese replicas that are packaged and sold on brand name boxes, make sure the bearing shop is a good one.

dcdrechsel

The one question I would have is -does the bearing come prelubricated with the right stuff .

Imo000

Ofcourse it does.

Dharn55

When I did my alternator a few months ago I replaced all three of the pulleys, the two deflection pulleys and the tensioner pulleys. The replacement/updated pulley are nylon and weigh much less. So if you are into weight savings, probably a couple of pounds

All three of many were sounding bad after 13 years and 70,000+ miles. I got all three for less than $240. Helps if you daughters boyfriend is a Porsche Tech