SKF Bearing
NSK Bearing
FAG Bearing
TIMKEN Bearing
INA Bearing
NTN Bearing
KOYO Bearing
NACHI Bearing
Bearing 30228JR (KOYO)
Tapered roller bearings 30228JR
Bearing number : 30228JR
Size (mm) : 140x250x45.75
Brand : KOYO
Bore Diameter (mm) : 140
Outer Diameter (mm) : 250
Width (mm) : 45,75
Bearing dimensions and specification in KOYO catalogue:
d – 140 mm
D – 250 mm
T – 45,75 mm
B – 42 mm
C – 36 mm
a – 49,4 mm
r min. – 4 mm
r2 min. – 3 mm
da min. – 158 mm
da max – 163 mm
Da min – 219 mm
Da max. – 236 mm
Db min. – 237 mm
ra max. – 3 mm
rb max. – 2,5 mm
Weight – 8,97 Kg
Basic dynamic load rating (C) – 420 kN
Basic static load rating (C0) – 570 kN
(Grease) Lubrication Speed – 1500 r/min
(Oil) Lubrication Speed – 1900 r/min
Calculation factor (e) – 0,44
Calculation factor (Y0) – 0,76
Calculation factor (Y1) – 1,38
Tags : KOYO,140x250x45.75HRD Bearing Co.,Limited. has been engaged in bearing industry for many years, we provide a wide selections of brands
including KOYO bearing, KOYO bearing, FAG bearing, NTN bearings, SKF bearings, deep groove ball
bearings, cylindrical roller bearings, tapered roller bearings, self-aligning ball bearings,thrust ball bearings, rolling mill
bearings, spherical roller thrust bearings, spherical bearings, adapter sleeves, withdrawal sleeves, lock nut, lock washer,
locking device, etc.
We can provide bearing and non-standard bearings, linear bearings, automotive bearings, large bearings, railway bearings,
spherical plain bearings, high temperature, super-precision bearings, as well as some rare types customized to your need.
Our bearings are exported to countries and regions in Europe (the UK, France, Italy, Germany), North America (USA, Canda),
Middle East and Southeast Asia.
Our goal is to exceed our customers’ expectation in providing quality products and continue to improve the services we
provide on a timely manner.
Please view the products at our website that we can supply. You can also contact our sales representative to request a
price quotation on the products that you are looking for that may not been shown on our website.
