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Item # R8, R Series Miniature / Instrumentation Ball Bearings
List Price QUOTE


The R Series is the largest of the inch style miniature / instrumentation series. The bore range goes from 0.1250" to 1.2500" while the O.D. goes from 0.3750" to 2.250". This series provides high performance with small envelope dimensions. Available with shields or rubber..

Common Options:
  • ZZ-- Two Metal Shields
  • DD-- Two Rubber Seals
  • EE-- Extended Inner Ring
  • A 1-7-- Abec class 1-7
  • P 2-5-- Radial play in ten thousandths
  • LO-- Lubricant: Oil
  • LG-- Lubricant: Grease



Unit of Measure: Imperial

 Specifications   

(d) Bore Diameter
0.5000 in

(D) Outer Diameter
1.1250 in

(B) Width Shielded/Sealed
0.3125 in

(B) Width Open Style
0.2500 in

(rs) Minimum Radius
0.016 in

(C) Dynamic Load
1150 lb

(Co) Static Load
540 lb

(Grease) Lubrication Speed
26000 min-1

(Oil) Lubrication Speed
30000 min-1

Weight
0.05 lb

Common Options
A 1-7-- Abec class 1-7
DD-- Two Rubber Seals
EE-- Extended Inner Ring
LG-- Lubricant: Grease
LO-- Lubricant: Oil
P 2-5-- Radial play in ten thousandths
ZZ-- Two Metal Shields


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Bearing Failure Analysis