Replies

1. 
   philip | Mar 26, 2007 03:56am | #1

   The thing to note about those is the fact that they are not "normal" bearings because of the extended inner race....Did the Japanese ones have this ?

   Philip Marcou
1. 
   BruceT999 | Mar 26, 2007 10:45am | #2

   "The thing to note about those is the fact that they are not "normal" bearings because of the extended inner race....Did the Japanese ones have this ?"Yep, look just like the originals, even use the same part number.BruceT

2. 
   terrylee86 | Mar 26, 2007 04:14pm | #3

   New Departure Hyatt bearings were the best in the industry when they were made in Sandusky, Ohio.  The bearings you have are shielded and not sealed, but the old ones lasted fourty years so I think that is a good testament that you got the right bearings.

   Terry

3. 
   mrbird90 | Mar 27, 2007 04:19am | #4

   These bearings were made by New Departure Hyatt in Bristol/Meridan Conn., and the 87 prefix means it has one seal(8) and one shield (7) The seal has a contacting rubber lip on the inner ring to keep the grease in and the dust out, the shield is a metal piece which does not contact the inner ring but runs with a very close clearance. Yes, NDH bearings were the Cadillac of the industry before the Japaneese put them out of the commercial bearing business because of low cost. The Japaneese actually sold their bearings for what our manufacturing cost were. They were subsidized by their government at the time, 1970-1980. Yes NDH also made bearings in Sandusky Ohio, but mostly high volume automotive. The one shown here was made in the east. By the way, the last two digits, the 04, designates the bore, 5 x 04 = 20mm or .7874" the 5 designates a light series radial bearing. 87504 any suffix would designate the lubricant .

   
   

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   Edited 3/26/2007 11:07 pm ET by mrbird90