PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 30230U belongs to the Tapered Roller Bearings family. The technical tables below show the available dimensions, ratings, speeds and mounting limits for this item.

When requesting a quotation, provide the complete item number, required quantity and operating conditions so Cat Son can verify the configuration.

30230U specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
150 mm
D - Diameter outside
270 mm
B - Width
45 mm
C - Outer-ring width
38 mm
T - Overall width
49 mm
d1 - Inner-ring outside diameter
203,5 mm
a - Load application point
51,5 mm
rs - Minimum fillet radius
4 mm
r1s - Minimum fillet radius
3 mm
Weight
11 kg
ISO 355 refethreadce
T4GB150

PRODUCT PERFORMANCE

C - Basic dynamic load rating
500 kN
C0 - Basic static load rating
605 kN
Cu - Fatigue load limit
59 kN
A2 - Rated-life factor
1
e - Limiting value
0.44
Y0 - Static axial load factor
0.76
Y2 - Upper axial load factor
1.38
N lim - Oil lubrication limiting speed
1700 tr/min
N lim - Grease lubrication limiting speed
1300 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da max - Maximum shoulder diameter IR
175 mm
db min - Minimum shoulder diameter IR
168 mm
Da min - Minimum shoulder diameter OR
234 mm
Da max - Maximum shoulder diameter OR
256 mm
Db min - Minimum shoulder diameter OR
255 mm
Ca - Minimum space width
7 mm
Ca - Minimum space width
11 mm
ra max - Maximum fillet radius
3 mm
r1a - Maximum fillet radius
2,5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

Cat Son can compare dimensions, design and mounting conditions before quotation.