PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 4T-30212 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-30212 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
60 mm
D - Diameter outside
110 mm
B - Width
22 mm
C - Outer-ring width
19 mm
T - Overall width
23,75 mm
d1 - Inner-ring outside diameter
82 mm
a - Load application point
22 mm
rs - Minimum fillet radius
2 mm
r1s - Minimum fillet radius
1,5 mm
Weight
0,929 kg
ISO 355 refethreadce
T3EB060

PRODUCT PERFORMANCE

C - Basic dynamic load rating
116 kN
C0 - Basic static load rating
125 kN
Cu - Fatigue load limit
15,2 kN
A2 - Rated-life factor
1
e - Limiting value
0.4
Y0 - Static axial load factor
0.81
Y2 - Upper axial load factor
1.48
N lim - Oil lubrication limiting speed
4500 tr/min
N lim - Grease lubrication limiting speed
3400 tr/min
Tmin - Minimum operating temperature
-40 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da max - Maximum shoulder diameter IR
70 mm
db min - Minimum shoulder diameter IR
70 mm
Da min - Minimum shoulder diameter OR
96 mm
Da max - Maximum shoulder diameter OR
101,5 mm
Db min - Minimum shoulder diameter OR
103 mm
Ca - Minimum space width
4 mm
Ca - Minimum space width
4,5 mm
ra max - Maximum fillet radius
2 mm
r1a - Maximum fillet radius
1,5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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