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Item # R20, 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
1.2500 in

(D) Outer Diameter
2.250 in

(B) Width Shielded/Sealed
0.5000 in

(B) Width Open Style
0.3750 in

(rs) Minimum Radius
0.031 in

(C) Dynamic Load
2650 lb

(Co) Static Load
1810 lb

(Grease) Lubrication Speed
12000 min-1

(Oil) Lubrication Speed
14000 min-1

Weight
0.22 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