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330870 BG Four-row tapered roller bearings
Dimensions: Bore (Inner) Diameter: 317.5 mm； Outer Diameter: 422.275 mm； Width (Thickness): ;

330870 BG
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Product Attributes
Product Number330870 BG
System of MeasurementMetric
Bearing TypeRoller
Roller Bearing TypeTapered Roller
TypeBearing
For Load DirectionCombined Radial and Thrust
ConstructionFour-row
Seal TypeOpen
Bore Dia317.5 mm
Bore Dia Tolerance-0.04mm to 0
Outer Dia422.275 mm
Outer Dia Tolerance-0.045mm to 0
Total Bearing Width Over Inner Rings269.875 mm
Total Bearing Width Over Outer Rings269.875 mm
Ring Material52100 Chrome Steel
Cage MaterialSteel
Roller Material52100 Chrome Steel
Dynamic Radial Load756000 lbf
Static Radial Load1833750 lbf
LubricationRequired
Temperature Range-30° to 110 °C
ABEC RatingABEC-1
RoHSCompliant
REACHCompliant
Weight231.49 lb
Radial ClearanceStandard (Available in C3/C4/C5)
330870 BG
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