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    >    33KDD5 r-3HH R3.2Z r-3 ff R3FF R3ZZ 77R3 ball bearing  
33KDD5 r-3HH R3.2Z r-3 ff R3FF R3ZZ 77R3 ball bearing
Fafnir 33KDD5 P N FS50160 MIL-G-23827 Single Row Deep Groove Ball Bearing Double Shield Type
  * DD - Closures: two non-contact steel shields
  * P - Radial Internal Clearance: loose fit. P or C3 rated bearings are more tolerant of higher temperature operating conditions and have greater internal clearance to cope with it.
  * N - closer-fitting grease shield with more land on bearing face.
  * FS50160 - pre-lubricated with AeroShell Grease 7; an advanced multi-purpose grease, composed of a synthetic oil thickened with Microgel , possessing good load carrying ability over a wide temperature range. It is inhibited against corrosion and has excellent resistance to water. The useful operating temperature range is  73 C to +149 C. Military Specification: MIL-G-23827, Superseded by: MIL-PRF-23827C (Type II ): http://www.epc.shell.com/Docs/GPCDOC_X_cbe_24855_key_140001639329_16A0.pdf
  * ** With at least one shield removed, proper lubricant, level and flow.
  * Porter Cable # 43401 router pilot bearing