Selecting Bearing Type

Bearing type

purely radial load

purely axial load

combined load

moment load

high speed

high running accuracy

high stiffness

quiet running

low friction

compensation for missalligment in operation

compensation for errors of alignment (initial)

locating bearing arrangements

non-locating bearing arrangements

axial displacement possible in bearing

Ball single-row

+

+

+

-

+++

+++

+

+++

+++

-

-

+++

+

--

Ball double-row

+

+

+

-

+++

+++

+

+++

+++

-

-

+++

+

--

Ball self-aligning

+

+

+

-

+++

+++

+

+++

+++

-

-

+++

+

--

Ball angular contact

+

+

++

-

++

+++

+

++

++

-

-

++

--

--

Ball (back-to-back)

++

+

++

+

+

++

++

+

+

--

--

++

+

--

Ball four-point contact

-

+

+

+

++

+

+

+

+

--

--

++

-

--

Cylindrical roller N,NU

++

--

--

--

+++

++

++

++

++

-

--

-

+++

+++

NU, NUP

++

+

+

--

+++

++

++

+

++

-

-

+

+

+

double-row

+++

--

--

+

+++

+++

+++

++

++

--

--

--

+++

+++

Full complement cyl. roller

+++

+

-

--

-

+

+++

-

-

-

-

+

+

+

double-row

+++

--

--

+

+++

+++

+++

++

++

--

--

+

+

+

Needle roller

++

--

--

--

+

+

++

+

-

--

--

--

+++

+++

Spherical roller

+++

+

+++

--

+

+

++

+

+

+++

++

++

+

--

Taper roller

++

++

+++

--

+

++

++

+

+

-

-

++

--

--

(face-to-face)

+++

++

+++

-

+

+

+++

+

+

-

-

+++

+

--

Thrust ball

--

+

--

--

+

++

+

-

+

--

--

+

--

--

with spherical housing washer

--

+

--

--

+

+

+

-

+

--

 

+

--

--

Thrust cylindrical roller

--

++

--

--

-

++

++

-

-

--

--

+

--

--

Thrust needle roller

--

++

--

--

-

+

++

-

-

--

--

+

--

--

Thrust spherical roller

--

+++

+

--

+

+

++

-

+

+++

++

++

--

--

Used Symbols

+++

excellent

++

good

+

satisfactory

-

wrong

--

inconvenient