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Deep Groove Ball Bearing

Deep Groove Ball Bearing

Deep Groove Ball Bearing

Deep?Groove?Ball?Bearings

GFU?manufacture?a?full?range?of?deep?groove?ball?bearings.?These?bearings?are?the?
most?common?type?and?are?used?in?a?wide?variety?of?applications.

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Design?Attributes?:
Newly?developed?seals?(double-lip?labyrinth?RS2):?Improved?protection?against?contamination
?with?low?friction,?better?grease?retentionNew,?special?low-noise?lubricant:?Lower?starting?
torque?over?a?wide?range?of?temperatures

Superior?surface?finish?on?raceways:?Reduced?friction,?lower?operating?temperature
Closer?grade?balls:?More?uniform?running?and?lower?noise
Reduced?running?noise:?Through?100%?noise?testing?with?stringent?limit?values

Technical?data?of?the?lubricant


Typical?applications:
electrical?motors
general?machinery
industrial?gearboxes
pumps
agricultural?machinery
Etc.

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Product?List

Single-Row?Deep?Groove?Ball?Bearings

Pressed?Steel?Cages?Single-row?deep?groove?ball?bearings?are?the?most?common?type?of?rolling?bearings.?
Their?use?is?very?widespread.?

In?addition?to?open?type?bearings,?these?bearings?often?have?steel?shields?or?
rubber?seals?installed?on?one?or?both?sides?and?are?prelubricated?with?grease.?Also,?snap?rings?are?sometimes?
used?on?the?periphery.?As?to?cages,?pressed?steel?ones?are?the?most?common.

For?big?deep?groove?ball?bearings,?machined?brass?cages?are?used.

Machined?cages?are?also?used?for?high?speed?applications.


Extra?Small?Ball?Bearings?and?Miniature?Ball?Bearings

Extra?Small?Ball?Bearings?and?Miniature?Ball?Bearings?Miniature?and?instrument?ball?bearings?can?be?
divided?into?two?basic?types,?deep?groove?and?angular?contact.?The?first?(deep?groove)?can?be?further?divided?
into?the?following?five?classes?depending?on?their?design?details:

?Standard?type

?Flanged?outer?ring

?Extended?inner?ring

?Expanded?type?in?which?one?ring?has?a?radial?thickness?that?is?larger?than?normal?compared?with?the?bearing?width.

?Thin?section?type?in?which?both?rings?are?extra?thin?in?the?radial?direction.?They?can?also?be?classified?as:?
open,?shielded,?or?sealed.

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Maximum-Type?Ball?Bearings

Maximum-Type?ball?Bearings?contain?a?larger?number?of?balls?than?normal?deep?groove?ball?bearings?because?of?
filling?slots?in?the?inner?and?outer?rings.?Because?of?their?filling?slots,?they?are?not?suitable?for?applications?
with?high?axial?loads.?BL2?and?BL3?types?of?bearings?have?boundary?dimensions?equal?to?those?of?single-row?deep?groove?ball?bearings?of?Series?62?and?63?respectively.?Besides?the?open?type,?ZZ?type?
shielded?bearings?are?also?available.?When?using?these?bearings,?it?is?important?for?the?filling?slot?in?the?outer?
ring?to?be?outside?of?the?loaded?zone?as?much?as?possible.?Their?cages?are?pressed?steel.

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Magneto?Bearings

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The?inner?groove?of?magneto?bearings?is?a?little?shallower?than?that?of?deep?groove?bearings.?Since?the?
outer?ring?has?a?shoulder?on?only?one?side,?the?outer?ring?may?be?removed.?This?is?often?advantageous?for?
mounting.?In?general,?two?such?bearings?are?used?in?duplex?pairs.?Magneto?bearings?are?small?bearings?
with?a?bore?diameter?of?4?to?20?mm?and?are?mainly?used?for?small?magnetos,?gyroscopes,?instruments,?etc.?
Pressed?brass?cages?are?generally?used.

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