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Single row tapered roller bearings

30305A - SNR

30305A

Tapered roller bearing, pressed steel cage

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter25 mm
D - External diameter62 mm
B - Bearing/Inner ring width17 mm
C - Outer ring width15 mm
T - Total width18,25 mm
d1 - External diameter inner ring42,2 mm
a - Charge load application point13,2 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Mass0,264 kg
ISO 355 referenceT2FB025
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PRODUCT PERFORMANCE
C - Dynamic load51,4 kN
A2 - Rating life coefficient1
C0 - Static load48,1 kN
Cu - Fatigue limit load5,9 kN
e - Coefficient0.3
Y0 - Static axial load coefficient1.1
Y2 - Upper axial load coefficient2
N ref - Reference thermal speed8100 tr/min
N lim - Mechanical Limit Speed13000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)5,125 Hz
BPFI - Over rolling frequency on inner (60 rpm)7,875 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,429 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,215 Hz
FTF - Rotational frequency - cage (60 rpm)0,394 Hz
ABUTMENT
da max - Max shoulder diameter IR34 mm
db min - Min IR shoulder diameter33,5 mm
Da min - Min shoulder diameter OR52 mm
Da max - Max shoulder diameter OR53,5 mm
Db min - Min OR shoulder diameter57 mm
Ca - Min clearance3 mm
Cb - Min clearance3 mm
ra max - Max fillet radius1,5 mm
r1a - Max fillet radius1,5 mm
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OE Equivalents

ManufacturerReferenceAlfa Romeo, Iveco0026800330

Automotive Compatibility

BrandModelGenerationDatePositionLocationAlfa RomeoAR8AR802/1980 => 07/1986FrontRightIvecoDAILYDAILY06/1987 => 11/1989FrontDroitIvecoDAILYDAILY06/1987 => 11/1989Train avantDroitIvecoDAILYDAILY12/1988 => 02/1996FrontGauche,DroitIvecoDAILYDAILY12/1988 => 02/1996Train avantDroit,Gauche

Industry Calcul Factors

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