PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 4T-399A/394A 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.

4T-399A/394A specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
68,262 mm
D - Diameter outside
110 mm
B - Width
21,996 mm
C - Outer-ring width
18,824 mm
T - Overall width
22 mm
d1 - Inner-ring outside diameter
87 mm
a - Load application point
21,3 mm
Weight
0,772 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
99,5 kN
C0 - Basic static load rating
120 kN
Cu - Fatigue load limit
14,6 kN
A2 - Rated-life factor
1
e - Limiting value
0.4
Y0 - Static axial load factor
0.82
Y2 - Upper axial load factor
1.49
N lim - Oil lubrication limiting speed
4300 tr/min
N lim - Grease lubrication limiting speed
3200 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da max - Maximum shoulder diameter IR
74 mm
db min - Minimum shoulder diameter IR
78 mm
Da max - Maximum shoulder diameter OR
101 mm
Db min - Minimum shoulder diameter OR
104 mm
ra max - Maximum fillet radius
2,3 mm
r1a - Maximum fillet radius
1,3 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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