PRODUCT INFORMATION

Description and selection guidance

NTN Bearing NJ304EAT2X belongs to the Cylindrical 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.

NJ304EAT2X specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
20 mm
D - Diameter outside
52 mm
B - Width
15 mm
E - Upper roller diameter
45,5 mm
F - Lower roller diameter
27,5 mm
d1 - Diameter outside of flange IR
31,1 mm
rs - Minimum fillet radius
1,1 mm
r1s - Minimum fillet radius
0,6 mm
Bearing clearance
CN
Weight
0,149 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
37,5 kN
C0 - Basic static load rating
26,9 kN
Cu - Fatigue load limit
3,25 kN
N lim - Oil lubrication limiting speed
18000 tr/min
N lim - Grease lubrication limiting speed
13000 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
24 mm
da max - Small face shoulder max diameter
27 mm
db min - Min inner ring GO diameter
0 mm
dc min - Diameter inner ring minimum GO
30 mm
Da max - Maximum shoulder diameter OR
45,5 mm
ra max - Maximum fillet radius
1 mm
r1a - Maximum fillet radius
0,6 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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