PRODUCT INFORMATION

Description and selection guidance

NTN Bearing NJ321C3 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.

NJ321C3 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
105 mm
D - Diameter outside
225 mm
B - Width
49 mm
E - Upper roller diameter
195 mm
F - Lower roller diameter
135 mm
d1 - Diameter outside of flange IR
147 mm
rs - Minimum fillet radius
3 mm
r1s - Minimum fillet radius
3 mm
Bearing clearance
C3
Weight
9,014 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
355 kN
C0 - Basic static load rating
360 kN
Cu - Fatigue load limit
37,5 kN
N lim - Oil lubrication limiting speed
3700 tr/min
N lim - Grease lubrication limiting speed
3100 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
118 mm
da max - Small face shoulder max diameter
132 mm
dc min - Diameter inner ring minimum GO
149 mm
Da max - Maximum shoulder diameter OR
212 mm
ra max - 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.