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Jan. 6, 2019

Bearing contamination is caused by the presence of foreign materials especially on the lubricant or clearing solutions. Such foreign materials include dust, abrasive grit, and steel chips, and dirt introduced by dirty hands.

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Additional Description

Item Details
Manufacturer: MRC Bearing Service
Weight: 0.06 lbs.
Product Name: 100-KS Extra Light Series Ball Bearing
Description: 12 mm ID x 28 mm OD x 8 mm Wide; Single Shield; No Snap Ring; Single Row Radial Steel Bearing
Inch/MetricMetric BoreBore TypeRound Bore
I.D.12 mmO.D. [Min]
O.D. [Max]O.D.28 mm
Width [Min]Width [Max]
Width8 mmEnclosureSingle Shield
Rows of BallsSingleMaterialSteel
O.D. TypeStraightBearing TypeRadial
PrecisionStandardRadial Internal Clearance SpecificationNormal Clearance
Ambient Temperature Range [Min]Ambient Temperature Range [Max]
Ball MaterialSteelCage TypeMetal
CapacityStandard CapacityContact Angle
Guide TypeLubrication
Outer Ring Width8 mmPrecision LevelStandard (ABEC 1)
Preload LevelNoneSeal MaterialMetal
Seal TypeNon-Contact SealsSeal Width
Dynamic Load Rating1140 lbfStatic Load Rating [Max]530 lbf
Ball Dia.Bearing Design
Bore BCage MaterialSteel
Collar No.Collar O.D.
Collar WidthCorner Radius [Min]
Eccentric Collar OffsetFillet Radius0.3 mm
Flange O.D. [Max]Flange O.D.
Flange Width [Max]Flange Width
Flush GroundHousing Shoulder Diameter [Min]
Housing Shoulder Diameter [Max]Housing Shoulder Diameter
Industry Standard Part #Inner Ring O.D.
Inner Ring OffsetInner Ring Width8 mm
Internal DesignLimiting Speed
Limiting Speed - Grease26000 rpmLimiting Speed - Oil32000 rpm
Limiting Speed - Sealed17000 rpmLocking DeviceNo Locking Device
Lube Hole CenterLubricantOil Preservative
Misalignment RangeNo. in SetSingle Bearing
No. of BallsO.D. (B)
Outer RingOuter Ring Inner Diameter
Outer Ring SizePeak Running Torque (mg-mm)
Peak Starting Torque (mg-mm)Pre LubricantNone
Preload AmountRadial Internal ClearanceNormal
Radial Load Rating [Max]Radial Rigidity (lbf/µm)
Reference SpeedSeal O.D.
Seal Protection WidthSeating Washer
SeriesSet Screw Offset
Set Screw SizeShaft Shoulder Diameter [Min]
Shaft ToleranceSnap RingNo Snap Ring
Snap Ring O.D.Snap Ring Offset
Snap Ring ThicknessSpecial Features
StampingStatic Thrust Load Rating [Max]
Temperature Range [Min]-22 °FTemperature Range [Max]250 °F
Use With  
Product Information
  • Single-row radial conrad-type bearings
  • Made with bores ranging from 10 mm to 320 mm
  • No filling notches
  • Can carry significant radial loads and substantial thrust loads in either direction, even at very high speeds
  • Offered open, single, or double shields or seals, and snap rings in various combinations
  • Specifications:

    Cage Metal
    I.D. 0.472
    Locking None
    O.D. 1.102
    Bearing Type Radial
    Enclosure Single Shield

    Return policy

    Item must be unused.

    Item must be in it's original package.

    Product's availability

    State of California Proposition 65 Product Warning