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ISO 9001:2000 Certified Quality Management System

Bearing Design Data

Ball Bearing Design

PACAMOR KUBAR BEARINGS (PKB) Miniature, Precision, and Instrument Ball Bearings are manufactured to the highest degree of quality and workmanship. PKB manufactures for industries such as aerospace, aircraft instrument, medical instruments, computers, flow meters, and many others.

Within the assembled mechanism, the fit of the ball bearing on its mating components is vital to maximizing bearing life. If the fit is too loose, the bearings slide around on the shaft, eliminating the advantages gained by selecting a precision ball bearing in the first place. If the fit is too tight, the bearing integrity may be compromised by reduction of radial play in the assembly. The perfect fit enables bearings to run at peak performance for maximized end-product life.

For further assistance with bearing selection and design, please feel free to contact our engineering team or look at our online catalog.

 

  Balls Land Diameter Retainer
Basic Size Crown Ribbon Size Inner Outer Crown Ribbon
SR09 5 N/A 1/40 0.064 0.1 STD NO
SR0 6 N/A 1/32 0.075 0.123 STD NO
SR1 6 N/A 1mm 0.091 0.15 STD NO
SR133 7 8 1/32 0.117 0.163 STD YES
SR1-4 6 N/A 3/64 0.122 0.193 STD NO
SR144 8 8 1mm 0.157 0.217 STD YES
SR1-5 6 6 1/16 0.176 0.269 STD YES
SR2-5 6 6 1/16 0.176 0.269 STD YES
SR155 9 11 1mm 0.22 0.279 STD YES
SR156 9 11 1mm 0.22 0.279 STD YES
SR2-6 7 7 1/16 0.204 0.297 STD YES
SR2 7 7 1/16 0.204 0.297 STD YES
SR2A 7 7 1/16 0.204 0.297 STD YES
SR166 8 8 1/16 0.232 0.329 STD YES
SR168 11 N/A 1mm 0.283 0.342 STD NO
SR3 7 7 3/32 0.276 0.411 STD YES
SR188 10 11 1/16 0.33 0.429 STD YES
SR1810 11 11 1/16 0.362 0.449 STD YES
SR4 8 8 3/32 0.365 0.514 STD YES
SR4A N/A 6 9/64 0.388 0.6 NO STD
SR6 N/A 7 5/32 0.52 0.744 NO STD
SR6-5 N/A 12 3/32 0.582 0.724 NO STD

STD = PACAMOR KUBAR BEARINGS Standard Retainer
YES = Optional Ribbon Retainer Available
ADDITIONAL RETAINER MATERIALS ARE AVAILABLE UPON REQUEST