PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 3214AC3 belongs to the Double Row Angular Contact Ball 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.

3214AC3 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
70 mm
D - Diameter outside
125 mm
B - Width
39,7 mm
d1 - Inner-ring outside diameter
86,7 mm
D1 - Diameter rib/groove of outer ring
106,3 mm
a - Load application point
61,6 mm
α - Contact angle
25 °
rs - Minimum fillet radius
1,5 mm
Bearing clearance
C3
Precision class
P0
Weight
1,52 kg

BEARING FREQUENCIES

BPFO - Outer-ring characteristic frequency (60 rpm)
4,68 Hz
BPFI - Inner-ring characteristic frequency (60 rpm)
6,32 Hz
FTF - Cage characteristic frequency (60 rpm)
0,425 Hz
BSF - Rolling-element characteristic frequency (60 rpm)
5,944 Hz

PRODUCT PERFORMANCE

C - Basic dynamic load rating
81,5 kN
C0 - Basic static load rating
76,3 kN
Cu - Fatigue load limit
4,55 kN
f0 - Factor
15.2
N ref - Reference thermal speed
4600 tr/min
N lim - Mechanical limiting speed
5100 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
78 mm
Da max - Maximum shoulder diameter OR
117 mm
ra max - Maximum fillet radius shaft & housing
1,5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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