Tapered roller bearings 30228U NTN
NTN

Tapered roller bearings 30228U

Bearing NTN 30228U, Ø140×250×42 mm. Request a quote — worldwide shipping.

Code: 30228U
Type Tapered roller bearings
Dimensions Ø 140 × 250 × 42 mm
d140Bore Ø (mm)
×
D250Outer Ø (mm)
×
B42Width (mm)
All bearings 140×250×42 mm Compare all brands with this size
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In stock

Technical specifications

BrandNTN
d - Internal diameter140 mm
D - External diameter250 mm
B - Bearing/Inner ring width42 mm
C - Outer ring width36 mm
T - Total width45,75 mm
d1 - External diameter inner ring189 mm
a - Charge load application point48,5 mm
rs - Min fillet radius4 mm
r1s - Min fillet radius3 mm
Mass8,73 kg
ISO 355 referenceT4FB140
C - Dynamic load465000000 mN
C0 - Static load570000000 mN
Cu - Fatigue limit load57000000 mN
A2 - Rating life coefficient1
e - Coefficient0.44
Y0 - Static axial load coefficient0.76
Y2 - Upper axial load coefficient1.38
N lim - Oil lubrication limit speed11400 °/s
N lim - Grease lubrication limit speed8400 °/s
Tmin - Min operating temperature233,15 °K
Tmax - Max operating temperature393,15 °K
da max - Max shoulder diameter IR163 mm
db min - Min IR shoulder diameter158 mm
Da min - Min shoulder diameter OR219 mm
Da max - Max shoulder diameter OR236 mm
Db min - Min OR shoulder diameter237 mm
Ca - Min clearance7 mm
Cb - Min clearance9,5 mm
ra max - Max fillet radius3 mm
r1a - Max fillet radius2,5 mm

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NTN 30228U