PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 23256EMD1 belongs to the Spherical 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.

23256EMD1 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
280 mm
D - Diameter outside
500 mm
B - Width
176 mm
d2 - Diameter rib of inner ring
0 mm
D1 - Diameter rib/groove of outer ring
426 mm
rs - Minimum fillet radius
5 mm
Number of lubrication holes
8
b - Width of lubrication groove
27 mm
k - Diameter of lubrication hole
16 mm
Bearing clearance
CN
Weight
152 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
3810 kN
C0 - Basic static load rating
5420 kN
Cu - Fatigue load limit
193 kN
e - Limiting value
0.35
Y0 - Static axial load factor
1.91
Y1 - Lower axial load factor
1.95
Y2 - Upper axial load factor
2.9
N lim - Oil lubrication limiting speed
950 tr/min
N lim - Grease lubrication limiting speed
740 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
200 °C

LIMITS

da min - Minimum shoulder diameter IR
300 mm
Da max - Maximum shoulder diameter OR
480 mm
ra max - Maximum fillet radius shaft & housing
5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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